Transcript PowerPoint **

4G/M2M paper survey
Copyright © 2012, [email protected]
Wireless machine-to-machine
communication
Beale, M.; Morioka, Y.; Microwave Conference (EuMC), 2011 41st European , vol., no.,
pp.115-118, 10-13 Oct. 2011
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• The most frequently used wireless technology that is
applied in the PAN for M2M is IEEE 802.15.4 based
Zigbee; WiFi, may also be used in the PAN or local
area
• WiMAX, CDMA etc. may also be used for M2M. These
technologies may be suitable for supporting higher
data rate M2M applications than GPRS although such
high data rates applications (e.g. video surveillance,
digital signage etc.) may only represent a small
proportion of M2M communications in the foreseeable
future
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• LTE technology, as the long term evolution for 3GPP, is
a natural choice for the evolution of 3GPP to the
support of low rate M2M applications in the future.
3GPP is considering LTE enhancements as part of its
focus on M2M
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Coverage and networking analysis of TDLTE system
Sheng Zhou; Communication Technology and Application (ICCTA 2011), IET
International Conference on , vol., no., pp.428-431, 14-16 Oct. 2011
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• The development of mobile Internet and Internet of
Things sharply increases needs of bandwidth and rate
of mobile network
• In a typical urban macro/micro scenario with lots of
users, the network capacity is a bottleneck of the user
experience
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• AFN (Intra Frequency Networking) is that the service
and neighbor cells work in the same spectrum, namely
sharing same sub-carrier resources
• RFN (Inter Frequency Networking) means the service
cell works in the different spectrum different from
neighbor cells
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Radio resource allocation in LTE-advanced
cellular networks with M2M
communications
Kan Zheng; Fanglong Hu; Wenbo Wang; Wei Xiang; Dohler, M.; Communications
Magazine, IEEE , vol.50, no.7, pp.184-192, July 2012
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• This article thus briefly reviews the features of M2M
services in the third generation (3G) long-term
evolution and its advancement (LTE-Advanced)
networks
• With M2M communications, devices “talk” to each
other through wired or wireless connections and share
data without direct human intervention
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• For mobile service operators, services through M2M
communications have promising and strategic values.
For instance, a large number of M2M services are nonreal time and typically consume little bandwidth, with
minimal impact on the capacity of radio access
networks (RANs)
• The scope of this article is hence to examine how H2H
users and MTC devices can share available radio
resources efficiently so as to mitigate co-channel
interference and thus enhance network efficiency
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• Direct Transmission Between MTCD and eNB —
Therefore, there exist strong similarities between the
eNB-to-UE and eNB-to-MTCD links. In certain time
instants, intense competition for radio resources may
occur
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• Multi-Hop Transmission with the Aid of an MTC
Gateway — In order to mitigate or eliminate negative
effects
of
M2M
communications
on
H2H
communications, an MTC gateway can be deployed in
cellular networks, where all MTCDs are connected to
the eNB indirectly through the relaying of the MTCG
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• Peer-to-Peer Transmission Between MTCDs — An
MTCD may communicate locally with other entities,
which provide the MTCD with raw data for processing
and communicating to the MTC server and/or other
MTCDs
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Machine-to-Machine Communication in
LTE-A
Yu Chen; Wei Wang; Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
IEEE 72nd , vol., no., pp.1-4, 6-9 Sept. 2010
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• Machine-to-machine communication will be one of the
focuses in LTE-A, as the demand of M2M is increasing
so greatly recent years and might eventually exceeds
the human-to-human communication.
• Like the first generation M2M, a major part of M2M
uses SMS as the communication method, and the
machines only send small amount of data once a time.
It is not a problem when there are few machine devices
in the network
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• In current specification, only very limited categories of
handset capabilities are supported, and even the
lowest category can provide what’s more than the
metering needs
• The LTE-A physical layer chain contains the following
six function blocks, including physical channels
supported, coding schemes, modulation schemes,
maximum transmission power, bandwidth configuration,
RF configuration
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• Since these machines are deployed by large company,
it is easy to make the conformance test of the new
devices, so network operator does not need to worry
the impact on the current network
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Support of Low Complexity LTE Terminals
Beale, Martin; Morioka, Yuichi; Vehicular Technology Conference (VTC Spring), 2012
IEEE 75th , vol., no., pp.1-6, 6-9 May 2012
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• With approximately 80% of the worldwide population
already connected through cellular networks in 2010,
the market for Human-to-Human (H2H) communication
is expected to saturate in the near future
• Whereas many operators currently use multiple radio
access technologies (RATs), future costs can be
reduced by operating a single RAT
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A Novel Random Access for Fixed-Location
Machine-to-Machine Communications in
OFDMA Based Systems
Ko, K.; Kim, M.; Bae, K.; Sung, D.; Kim, J.; Ahn, J.; Communications Letters, IEEE ,
vol.PP, no.99, pp.1-4, 2012
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• To support M2M communications in future cellular
systems, one of the most challenging problems is to
resolve a collision problem in random access because
of access attempts from a large number of devices
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