Transcript IEEE 1900 Committee

IEEE 1900 Committee
Next Generation Radio and
Spectrum Management
Jim Hoffmeyer
Western Telecom Consultants, Inc.
IEEE 1900.1 Working Group Chair
[email protected]
303-931-3840
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Presentation Outline
•
Problem Definition – the 10,000 foot view
– Technical
– Common Regulatory Concerns
•
IEEE 1900 Committee
– 1900.1
– 1900.2
– 1900.3
– Study Groups
•
Existing and Potential Relations with Other Standards Organizations
•
Summary
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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The Buzzwords
•
Software Defined Radio
•
Cognitive Radio
•
Policy-Based Radio
•
Reconfigurable Radio
•
Smart Radio
•
Intelligent Radio
•
Composite Networks
Complex technology, regulatory, business, standards and legal
issues need to be solved to bring this to fruition
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Illustration of Advanced Radio System Terminology
Software Controlled Radio (SCR)
RF
Digital
I/0
Software
Control
ManMachine
Interface
Software Control Processing Engine
(Adaptive Control Mechanism)
Information needed for cognitive and policy-based
adaptive control mechanisms:
•Policies (regulatory, operational, user)
•Sensor information
•Available RF bands
•Propagation data
•Available protocols
•Performance requirements
•Information from radio network infrastructure
J. Hoffmeyer -- Western Telecom Consultants, Inc.
LEGEND
Control Signals
Radio Signals
Information to software
control processing engine
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Components of Intelligent Radio Systems
Cognitive Radio
Tasks, Policies, Rules, Goals
Planning
Learning
Radio Platform
Radio Platform
Radio Platform
Transmit Sense
Transmit Sense
Transmit Sense
Radio Platform
Transmit
Data
Base
Sense
Monitor
Communication Channel
•Information Exchange
•Distributed Resource Allocation
•Negotiation, Contracting etc
J. Hoffmeyer -- Western Telecom Consultants, Inc.
Note: The
arrows shown
above should be
viewed as
representative
and should not
be interpreted to
imply a specific
standardized
implementation
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Components of Policy-Based Radio Adaptive Control Mechanism
Software Controlled Radio (SCR)
RF
Digital
Regulatory
Policies
System
Operator
Policies
Interference
Avoidance
Security, QoS,
Mission
Priorities, etc.
Radio
Policies
Routing, Duty
Cycle, Power,
etc.
I/0
- Downloadable
- Changeable
Software
Control
Policy
Base
Sense
Environment
Control &
Behavior
Algorithms
Opportunities
Radio Capabilities
Hardwired or
Software
J. Hoffmeyer -- Western Telecom Consultants, Inc.
Policy Processing
• Reasoning/Inference
• Conformance Checking
•…
Policy Controls
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Policy-Based Radio Dynamic Frequency Selection Functions
1. Spectrum Usage Data Collection
•Real-time, wide-band, low-power sensing of
the spectrum environment
•Download machine-readable regulatory
policies and spectrum usage information that
are both geo-location and time sensitive.
Dynamic
2. Characterize the Data
4. Adapt
•Transition network to new emission plan
•Real-time evaluation of the spectrum data
Frequency
•Rapid waveform determination
Selection
3. React
•Formulate the best course of action (i.e.,
what is the most appropriate frequency
and waveform to use)
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Some Key Issues
•
•
•
•
•
Why is there a need for common definitions?
What are the different perspectives of the issues: technical, regulatory,
industry food chain and business cases?
Global (international) issues – What are the commonalities and the
differences?
Are the issues service related? What issues can be addressed
globally (all services and bands of the spectrum)?
What standards are needed?
– New IEEE 1900 Series – What are the objectives?
– What is/will be the role of the ITU?
•
What are the regulatory requirements? What is a realistic vision and
timeline for that vision?
– Does the timeline and vision differ between services and bands in the
spectrum?
•
•
What additional research is needed?
Security issues – what has been addressed and what remains to be
addressed?
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Presentation Outline
•
Problem Definition – the 10,000 foot view
– Technical
– Common Regulatory Concerns
•
IEEE 1900 Committee
– 1900.1
– 1900.2
– 1900.3
– Study Groups
•
Existing and Potential Relations with Other Standards Organizations
•
Summary
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Common Concerns of Regulatory Authorities Around the Globe (1 of 2)
•
Increasing demands for access to more spectrum
•
More efficient use of the spectrum
•
Spectrum trading
•
Dynamic frequency sharing
•
Interrelationship of developments in technology, market and
regulatory practices
•
Need for a new spectrum management paradigm
•
Pace of technology development – regulation has to keep up or get
out of the way
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Common Concerns of Regulatory Authorities Around the Globe (2 of 2)
•
Balance of different types of spectrum management
–
–
–
“Command and control” – Inflexible frequency assignments
“Market mechanisms” – The market manages the spectrum within the constraints of the
licenses.
“License exempt use” – Nobody controls who uses the spectrum; power constraints or
other mechanisms restrict usage to reduce interference.
•
International Coordination
•
Investment in Equipment
•
Security (ensure that disruption to communication services can not occur as a result
of inadvertent or malicious changes to software in advanced communications
devices and systems).
•
Interference (ensure that users can use the spectrum assigned to them without
disruption).
•
Noise temperature
•
See the bibliography:
–
–
–
–
–
European Radio Spectrum Policy Group
ERO ECC PT8
FCC Spectrum Policy Task Force Report and proceedings on software defined radio and cognitive radio and
related proceedings
Ofcom Spectrum Framework Review
Cave Report
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Presentation Outline
•
Problem Definition – the 10,000 foot view
– Technical
– Common Regulatory Concerns
•
IEEE 1900 Committee
– 1900.1
– 1900.2
– 1900.3
– Study Groups
•
Existing and Potential Relations with Other Standards Organizations
•
Summary
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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What Standards Are Needed?
•
Definitions and Concepts
•
Interference/Co-Existence/Sharing
•
Conformance, Dependability, Evaluation, Levels of Assurance and
Compliance
•
Network aspects of cognitive and reconfigurable radio systems
•
Security
•
Other
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Purpose of IEEE Standards Committee 1900
The IEEE P1900 Standards Group was established in the first
quarter 2005 jointly by the IEEE Communications Society
(ComSoc) and the IEEE Electromagnetic Compatibility (EMC)
Society. The objective of this effort is to develop supporting
standards dealing with new technologies and techniques
being developed for next generation radio and advanced
spectrum management.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Current Standards Activities of IEEE 1900 (1 of 5)
– 1900.1 WG: Standard Definitions and Concepts for Spectrum Management and
Advanced Radio Technologies
• Project Approval Request approved March 2005; many drafts have been created; work
primarily being done by email and teleconference calls, but supplemented by physical
meetings; international participation.
• Chair: Jim Hoffmeyer [email protected]
• This standard will provide technically precise definitions and explanations of key
concepts in the fields of spectrum management, policy defined radio, adaptive radio,
software defined radio, and related technologies. The document will go beyond simple,
short definitions by providing amplifying text that explains these technologies from
different perspectives. The document will also describe how these technologies
interrelate and can be used in a wide variety of communication service environments to
achieve new capabilities while at the same time providing mechanisms supportive of
new spectrum management paradigms and spectrum access.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Definition of Cognitive Radio/Cognitive Radio Node
•
a.) Radio in which communication systems are aware of their environment and
internal state and can make decisions about their radio operating behavior
based on that information. The environmental information may or may not
include location information related to communication systems.
•
b.) Cognitive Radio (as defined in a.) that utilizes Software Defined Radio,
Adaptive Radio, and other technologies to automatically adjust its behavior or
operations to achieve desired objectives
•
Footnotes to the definitions
–
The IEEE recognizes that the terminology commonly used is “cognitive radio.”
However, generally the cognitive functionality may be outside the boundary normally
associated with a radio (e.g., environment sensing is a cognitive function that is not
normally part of a radio).
–
[1] The IEEE notes that the terms “dumb,” “aware,” and “smart, are used in the
technical literature but the IEEE does not define these terms at this time. They are
additional functional terms that are sometimes applied to radios.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Current Standards Activities of IEEE 1900 (2 of 5)
– 1900.2 WG: Recommended Practice for the Analysis of In-Band and Adjacent
Band Interference and Coexistence between Radio Systems
• PAR approved March 2005; several drafts have been created; work primarily being done
by email and teleconference calls, but supplemented by physical meetings; international
participation.
• Chair: Steve Berger [email protected]
• This recommended practice will provide technical guidelines for analyzing the potential
for coexistence or in contrast interference between radio systems operating in the same
frequency band or between different frequency bands.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Current Standards Activities of IEEE 1900 (3 of 5)
– 1900.3 WG: Recommended Practice for Conformance Evaluation of Software
Defined Radio (SDR) Software Modules
• PAR approved May 2005; work has been initiated.
• Chair: Andre Kruetzfeldt: [email protected]
• This recommended practice will provide guidance on how to estimate the conformance
with relevant specifications of software intended for deployment into a SDR terminal.
Concepts and methods to be used in these analyses will be detailed. This
recommended practice will support quality control and testing.
• The goal of this effort is to assure that SDR software can be deployed with high
confidence that it will operate within prescribed regulatory and operational limits. The
guideline will apply to wireless network operators and terminal equipment manufacturers
to help them define test guidelines that conform to SDR technologies licensed by
regulatory authorities.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Current Standards Activities of IEEE 1900 (4 of 5)
Study Group A: Dependability and Evaluation of Regulatory Compliance for Radio
Systems with Dynamic Spectrum Access
• Study Group approved March 2006
• Chair: John Chapin (Vanu Corporation): [email protected]
• Depending on level of interest, it may become a new Working Group.
• Areas of Study
– Dependability – level of trust in the correct operation of a system.
– Evaluation – Assessment of whether or not a system is correct, i.e., whether or not
it complies with a specification
» Evaluation of the etiquette
» Evaluation of the implementations
– Levels of assurance
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Current Standards Activities of IEEE 1900 (5 of 5)
Study Group B: Coexistence Support for Reconfigurable, Heterogeneous Air
Interfaces
• Study Group is being proposed by End-2-End Reconfigurability Project
• Chair: Markus Muck (Motorola, Paris)
• Depending on level of interest, it may become a new Working Group.
• Areas of Study
– The coexistence of heterogeneous air interfaces naturally occurs in a softwaredefined radio context where devices adapt their respective air interface usage and
Dynamic Spectrum Access strategies to their QoS requirements. In particular,
devices operating in a context-aware environment off-load a number of datastreams to one or several different air interfaces which are chosen in function of
their availability and QoS.
– Uncertainties regarding the efficiency of resource usage strategies in user devices
and/or network equipment create significant problems for both industry and
regulators.
– The above topics will be studied with the view of determining the feasibility of
developing standards in this area.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Study Group B / 1900.4 (continued)
Study Group B:
•
•
PAR submitted for Working Group creation (under review by NesCom in december
•
•
Chair(s): Soodesh Buljore (Motorola, Paris)
Vice Chair: Patricia Martigne (FTR&D, Paris)
Define system architecture for the optimisation of radio resource usage and spectrum
access; standardised protocols at a latter stage in order to provide improved capacity,
efficiency and utility within a heterogeneous wireless network wherein devices
operate
–
–
on multiple air interfaces, therefore spectrum bands
with next generation radio capabilities,
•
•
•
–
–
Simultaneous connection to more than one Radio Access Technology (RAT)
dynamic spectrum access,
distributed decision making for radio resource usage strategies
in licensed and unlicensed bands.
Resources : Radio Access Technologies, Frequency Bands & Channels, wherein frequency
bands cover multiple channels
P1900.B/.4 System which enables optimization of radio resource usage for devices
supporting multiple links and multiple radio access technology simultaneously.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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More Information on IEEE 1900
• http://www.ieeep1900.org/
• http://standards.ieee.org/board/nes/
1000-1999.html
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Presentation Outline
•
Problem Definition – the 10,000 foot view
– Technical
– Common Regulatory Concerns
•
IEEE 1900 Committee
– 1900.1
– 1900.2
– 1900.3
– Study Groups
•
Existing and Potential Relations with Other Standards
Organizations
•
Summary
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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IEEE 1900 Committee on Next Generation Radio and Spectrum
Management – Possible Relations with External Organizations
IEEE 802.22
IEEE 802.18
IEEE 802.19
Regulatory TAG
Coexistence TAG
Informal
agreement to
coordinate
documents
Informal
interactions
802.18 Chair
is official
liaison person
between IEEE
and ITU-R
IEEE 1900 has
submitted inputs
to WP8A and
WP8F; new
Question on CR
ITU-R
•Study Groups 1,
8 and possibly
others
Cognitive Radio in
TV Bands
Other IEEE ?
Informal
interactions
IEEE 1900
Other )
(Jointly sponsored by
ComSoc SA and EMC SA
(future)
MOU being
discussed
SDR Forum
J. Hoffmeyer -- Western Telecom Consultants, Inc.
MOU being
discussed
OMG
Through IEEE
1900 Study
Group B
End-to-End
Reconfigurability
Project
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Other Relevant IEEE Standards Activities
•
IEEE 802 LAN/MAN Standards Series
– 802.16 WG: Broadband Wireless Access Working Group
– 802.18 TAG: Radio Regulatory Technical Advisory Group
– 802.19 WG: Coexistence Working Group
– 802.20 WG: Mobile Broadband Wireless Access (MBA)
– 802.21 WG: Medial Independent Handover Services
– 802.22 WG: Wireless Regional Area Networks
• Developing Standard for Cognitive Wireless Regional Area Networks (RAN) Medium
Access Control (MAC) and Physical Layer (PHY) Specifications: Policies and
Procedures for Operation in the TV Bands
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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What Is the Role of the ITU-R and How Will This Evolve?
•
Current ITU-R Activities In SDR Relative to Question on SDR
– WP8A Report on SDR, “Software-Defined Radio in the Land Mobile Service.”
(ITU-R Report M.2064)
– WP8F Report on SDR, “The Impact of Software Defined Radio on IMT-2000, the
Future Development of IMT-2000 and Systems Beyond IMT-2000.”
(ITU-R Report 2063)
– Combined Report - This will include other working parties in ITU-R Study
Group 8 (Mobile, Radiodetermination, Amateur and Related Satellite Services )
•
Near-Term Activities of the ITU-R
– Study Group 8 (Mobile, radiodetermination, amateur and related satellite
services):
• Existing Question on Software Defined Radio
• New Question (DNQ) on Cognitive Radio
– Study Group 1 (Spectrum Management)
• Proposed Draft New Question on SDR
• Proposed Draft New Question on Cognitive Radio
•
Longer-Term Activities of the ITU-R
– New Spectrum Management Paradigm?
J. Hoffmeyer -- Western Telecom Consultants, Inc.
Note: IEEE is a Sector
Member of the ITU-R
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ITU Radiocommunication Sector Questions (1 of 2)
•
ITU-R Study Group 8Question on SDR
– Question ITU-R 230-1/8: Software-defined radio (assigned jointly to WP 8A
and WP 8F)
• What should the appropriate ITU definition for SDR be?
• What are the key technical characteristics that are associated with the design and
application of SDR?
• What frequency band considerations are important to the application of SDR?
• What special interference considerations may be required in SDR applications?
• What are the operational implications of SDR to mobile radio systems?
• What technical considerations are necessary to insure conformance with
ITU Recommendations and Radio Regulations?
• IEEE 1900 has contributed to the two published ITU-R reports on SDR
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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ITU Radiocommunication Sector Questions (2 of 2)
•
ITU-R Study Group 8 Question on Cognitive Radio
– What is the ITU definition of cognitive radio systems?
– What are the closely related radio technologies (e.g. smart radio,
reconfigurable radio, policy-defined adaptive radio and their associated
control mechanisms) and their functionalities that may be a part of
cognitive radio systems?
– What key technical characteristics, requirements, performance and
benefits are associated with the implementation of cognitive radio
systems?
– What are the potential applications of cognitive radio systems and their
impact on spectrum management?
– What are the operational implications (including privacy and
authentication) of cognitive radio systems?
– What are the cognitive capabilities that could facilitate coexistence with
existing systems in the mobile service and in other radiocommunication
services, such as broadcast, mobile satellite or fixed?
– What sharing techniques can be used to implement cognitive radio
systems to ensure coexistence with other users?
– How can cognitive radio systems promote the efficient use of the radio
resources?
– IEEE 1900 will contribute to this work
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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WLAN
WLAN
UMTS
DECT
GSM
***
GSM
GSM
GSM
E2R Concept of Dynamic Spectrum Management in Composite
Radio Environments
Frequency
Negotiates
Spectrum
Spectrum
Monitors and Controls
Access Network Load
Information Source: Reconfiguration Techniques to
Enhance Network Efficiency, K. Moessner;
Broker
Allocates spectrum in
composite environments
Spectrum Allocation
Manager
Network Planning &
Management
5500
MHz
850
MHz
(Not to Scale)
J. Hoffmeyer -- Western Telecom Consultants, Inc.
Composite Network
•Multiple cellular
networks
•Broadcast
•WLAN
•etc.
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Wireless World Research Forum View of Cognitive Radio and
Reconfigurability
Spectrum etiquette
Opportunistic spectrum access
Licensed Bands Interruptible Mode
–
–
Spectrum pooling
Primary user (higher priority) & secondary
users
Licensed Bands Centralized Mode
–
–
–
–
Multiple operators
Auctions
Spectrum pooling
Dynamic spectrum allocation (DSA)
Scope of
Reconfigurability
–
–
Cognitive
Radio
Unlicensed Bands
Information Source: WWRF White Paper by
Dimitrakopoulos, Hoffmeyer, et. al. – See bibliography.
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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DARPA XG Policy-based Adaptive
IEEE 1900
•Definitions
•Concepts
•Vision
•Roadmap
•Guidelines on how to
analyze the potential for
coexistence, or conversely
interference between radio
services.
•Primarily focused on military applications.
•Development of enabling technologies
•Protocols
•Wideband sensing and opportunity
identification.
•Policy language framework, machine readable
and machine understandable policies
•Traceability – identification of sources if
interference occurs.
•Verification and accreditation
•Need for a new regulatory policy framework.
•SDR conformance
modeling.
SDR Forum
•Addressing
military,
commercial, and
public safety
applications of
SDR and CR
•Definitions
•Measurements
and analysis of
current spectrum
utilization
Ideal Goal:
ITU-R
•WP8A: Report on SDR for
mobile applications other than
IMT-2000
Globally coordinated
PBR/SCR/SDR/RR/CR
definitions, concepts,
vision and interference
•WP8F: Report on SDR for IMT2000 applications
guidelines
•WRC changes to Radio
Regulations
WWRF and E2R
•Primarily focused on
commercial wireless
applications.
•Reconfigurable radio
•Networks to support
reconfigurable radio
Note: This figure does not purport to depict all entities involved in PBR/SCR/SDR/RR/CR/ and related
technologies (e.g., NSF, academic research, other standards organizations, etc. are not depicted).
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Presentation Outline
•
Problem Definition – the 10,000 foot view
– Technical
– Common Regulatory Concerns
•
IEEE 1900 Committee
– 1900.1
– 1900.2
– 1900.3
– Study Groups
•
Existing and Potential Relations with Other Standards Organizations
•
Summary
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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CR
Rough Technology Timeline
PBAR
Increasing Flexibility and
Reconfigurability
SR
Hardware radio
includes firmware and
therefore may have
significant
operational flexibility.
1995: First RFI on SDR
Ideal Software Radio
SDR
SCR + SDR baseband
+ SDR RF
SCR + SDR baseband
(for some applications)
SCR
Hardware Radio
1995
2005
2015
2025
2004: First SDR device
approved by FCC
Note: SDR currently is practical for some applications such as commercial wireless basestations, but not for some wireless
handsets. Cost, power, size and weight are critical design requirements that must be considered when considering the use of
advanced radio technologies.
CR – Cognitive Radio
PBAR – Policy-Based Adaptive Radio
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RFI – Request for Information
SCR – Software Controlled Radio
SDR – Software Defined Radio
SR – Software Radio
Summary
•
The spectrum crunch resulting from the demand for new services in
many applications is a major driving factor.
•
There is a complex interrelationship between business cases for new
wireless services, technology, standards and regulatory requirements.
•
IEEE 1900 is well positioned to play a leading role in meeting the
standardization requirements in next generation radio.
•
Regulators need standards to reference.
•
The IEEE 1900 Committee has already made significant contributions
to the ITU-R.
•
The IEEE 1900 Committee is investigating possible formal
relationships with the following organizations:
– Object Management Group (OMG)
– SDR Forum
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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IEEE 1900 Meeting Schedule 2007
Month
Dates
Organization
Event
Location
January
1900.4
Working Group
Meeting
Paris or
London
March
1900.4
Working Group
Meeting
Spain
April
18 -20
IEEE ComSoc
DySPAN
Dublin,
Ireland
April
16 – 19
IEEE 1900
Plenary plus WGs
Dublin,
Ireland
1900.4
Working Group
Meeting
Athens
June
July
9 – 10
IEEE EMC
EMC Symposium
Honolulu, HA
USA
July
9 – 10
TENTATIVE
IEEE 1900
Plenary plus WGs
Honolulu,
HA
USA
1900.4
Working Group
Meeting
Paris
September
September
24 – 28
OMG
OMG Technical
Meeting
Jacksonville,
FL USA
September
24 – 28
TENTATIVE
IEEE 1900
Plenary plus WGs
Jacksonville,
FL USA
1900.4
Working Group
Meeting
Berlin
November
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Abbreviated Bibliography (1 of 2)
1.
FCC Proceedings on Cognitive Radio and SDR:
– Spectrum Policy Task Force Report, ET Docket 02-135, November 2002
– Authorization and Use of Software Defined Radios ET Docket No. 00-47, Report and Order,
September 2001
– Facilitating Opportunities for Flexible, Efficient, and Reliable Spectrum Use Employing Cognitive
Radio Technologies, ET Docket 03-108, Report and Order, March 2005
2.
Software-Enabled Wireless Interoperability Assessment Report - Software Defined Radio Subscriber
Equipment:
http://www.safecomprogram.gov/SAFECOM/library/technology/1170_softwareenabledwireless.htm
3.
European Radiocommunications Office (ERO) Electronic Communications Committee (ECC) PT 8 ECC
PT8:
http://www.ero.dk/B2FCAAB8-DAAD-43DA-84E7-A6BEA982F907.W5Doc
4.
Radio Equipment and Telecommunications Terminal Equipment (RE&TTE):
http://www.ero.dk/B2FCAAB8-DAAD-43DA-84E7-A6BEA982F907.W5Doc
5.
European Radio Spectrum Policy Group http://rspg.groups.eu.int/
6.
Moessner, K.; Grandblaise, F.; Caper, J.; Luo, J.; and Mohyeldin, E. (2004), “Reconfiguration Techniques
to Enhance Network Efficiency,” Frequenz, 58, 5-6, pp 132 – 135. Available at:
http://www.e2r.motlabs.com/
7.
WWRF White Paper: Dimitrakopoulos, G., Demestichas, Pl; Grandblaise, D.; Moessner, K.; Hoffmeyer, J.;
and Luo, J (2005a); “Cognitive Radio, Spectrum and Radio Resource Management, WWRF WG 6 White
Paper, Available at: http://e2r.motlabs.com/dissemination/whitepapers
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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Abbreviated Bibliography (2 of 2)
8.
11th CEPT Conference Presentations:
http://www.ero.dk/6672A950-B423-4BE0-B532-914DAA65A381.W5Doc?frames=0
12th CEPT Conference: European Electronic Communications Regulatory Forum Presentations:
http://www.ero.dk/69D2D33E-0770-44CB-BEF1-9A8C74C04DBD.W5Doc?frames=no&
•
Session 1: Spectrum Management Reform – Who Needs It?
•
Session 2: Ultra Wideband – Pioneer of New Spectrum Use Paradigms?
•
Session 3: Regulatory Approaches Around the Globe
•
Session 4: Alternative Approaches to Regulation
•
10. Ofcom Spectrum Framework Review (http://www.ofcom.org.uk/consult/condocs/sfr/sfr2/)
9.
11. Radio Spectrum Management Review, Professor Martin Cave,
http://www.ofcom.org.uk/static/archive/ra/spectrum-review/index.htm
12. Wireless World Research Forum http://www.wireless-world-research.org/
13. Multi-Mode Radio Architecture Platforms http://www.mumor.org/
14. Japan Radio Policy Vision, 30 July 2003
http://www.soumu.go.jp/joho_tsusin/eng/features/radio_policy_vision.pdf
15. IEICE Transactions on Communications, December 2003: Special issue on software defined radio
technology and it application http://www.ieice.or.jp/cs/trans_b.html
16. Vision 20/20: Future Scenarios for the Communications Industry – Implications for Regulation (Australia),
April 2005 http://internet.aca.gov.au/ACAINTER.131186:STANDARD:1689838082:pc=PC_1650
17. Radio Software Download for Commercial Wireless Reconfigurable Devices; J. Hoffmeyer, et. al. IEEE
Communications Magazine, March 2004
J. Hoffmeyer -- Western Telecom Consultants, Inc.
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