Transcript IEEE C802.16m-09/1007

MCS table design for 16m
Document Number: IEEE C802.16m-09/1007
Date Submitted: 2009-04-27
Source:
Zhou hua([email protected]), Liang shengbao([email protected]), Tianjun([email protected]),
Zhang Jie([email protected]) and Xue Jinyin([email protected])
Fujitsu R&D center Co.,LTD Beijing.
RE:
AWD comments / Area: Chapter 15.3.12(Channel coding)
“Comments on AWD 15.3.12 channel coding”.
Base Contribution:
Purpose:
Propose to be discussed and adopted by TGm for the use in Project 802.16m AWD.
Notice:
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Introduction
 Updated SDD didn’t specify the MCS table size for
channel coding.
 In this contribution, we compare different MCS
table size in terms of system throughput.
 4 bits MCS table is taken from current AWD
text.
 5 bits MCS table is generated based on the
burst size table.
Performance comparison between 4 bits and 5 bits
MCS table
 5 bits MCS table has 4.3% gain of system throughput
over 4 bits MCS table, and 3.2% gain of user coverage
over 4 bits MCS table.
4 bits MCS table
5 bits MCS table
Gain
System
throughput
1.85
1.93
4.3%
User coverage
0.03823
0.03947
3.2%
5 bits MCS table design
Modulation
Coding Rate
MCS 0
QPSK
0.1250
MCS 1
QPSK
0.1510
MCS 2
QPSK
0.1771
MCS 3
QPSK
0.2240
MCS 4
QPSK
0.2708
MCS 5
QPSK
0.3229
MCS 6
QPSK
0.3906
MCS 7
QPSK
0.4531
MCS 8
QPSK
0.5208
MCS 9
QPSK
0.5781
MCS 10
QPSK
0.6510
MCS 11
QPSK
0.7135
MCS 12
QPSK
0.7708
MCS 13
16QAM
0.4271
MCS 14
16QAM
0.4896
MCS 15
16QAM
0.5339
MCS 16
16QAM
0.5938
MCS 17
16QAM
0.6510
MCS 18
16QAM
0.6979
MCS 19
16QAM
0.7578
MCS 20
16QAM
0.7917
MCS 21
16QAM
0.8333
MCS 22
64QAM
0.5972
MCS 23
64QAM
0.6389
MCS 24
64QAM
0.6667
MCS 25
64QAM
0.7222
MCS 26
64QAM
0.7639
MCS 27
64QAM
0.8056
MCS 28
64QAM
0.8472
MCS 29
64QAM
0.8889
MCS 30
64QAM
0.9167
MCS 31
64QAM
0.9444
System Level simulation settings
Parameters
Values
Bandwidth
10 MHz
FFT size
1024
Carrier frequency
2.5 GHz
Subframe structure
According to the latest revision of IEEE 80216m-08/003r8
Channel Model
Modified ITU PedB with spatial correlation
Mobile speed
3 km/h
Antenna configuration
2x2
Receiver algorithm
MMSE
Channel coding & modulation
4 and 5 bits MCS table
Channel estimation
Perfect channel estimation
CQI feedback period and delay
2 frames
Scheduling method
PF
Cell to cell distance
500m
BTS power
46dbm
Shadow fading
8dB
UE noise figure
9dB
Link adaptation method
RBIR for MMSE receiver
Proposed text
• Replace table 700 with the following table:
Modulation
Coding Rate
Modulation
Coding Rate
00000
QPSK
0.1250
10000
16QAM
0.5938
00001
QPSK
0.1510
10001
16QAM
0.6510
00010
QPSK
0.1771
10010
16QAM
0.6979
00011
QPSK
0.2240
10011
16QAM
0.7578
00100
QPSK
0.2708
10100
16QAM
0.7917
00101
QPSK
0.3229
10101
16QAM
0.8333
00110
QPSK
0.3906
10110
64QAM
0.5972
00111
QPSK
0.4531
10111
64QAM
0.6389
01000
QPSK
0.5208
11000
64QAM
0.6667
01001
QPSK
0.5781
11001
64QAM
0.7222
01010
QPSK
0.6510
11010
64QAM
0.7639
01011
QPSK
0.7135
11011
64QAM
0.8056
01100
QPSK
0.7708
11100
64QAM
0.8472
01101
16QAM
0.4271
11101
64QAM
0.8889
01110
16QAM
0.4896
11110
64QAM
0.9167
01111
16QAM
0.5339
11111
64QAM
0.9444
Reference
[1]
[2]
[3]
IEEE P802.16 Rev2 / D7, “Draft IEEE Standard for Local and
Metropolitan Area Networks: Air Interface for Broadband Wireless
Access,” Oct. 2008.
IEEE 802.16m-08/003r8, “The Draft IEEE 802.16m System Description
Document”
IEEE 802.16m-09/0010r1a, “Advanced Air Interface (working document)”.