====== 2008 02 06 ======

===== 80216m-08_005.doc =====
Call For Comments and Contributions on 802.16m System Description Document (SDD)
Brian Kiernan, TGm Chair
TGm document

* The TGm reflector is established as: http://groups.google.com/group/dot16m

* The Uplink Access Techniques [“uplink”] Rapporteur Group is chartered to develop a report on the advantages and disadvantages of various non-MIMO uplink access techniques  to submit it as a Task Group contribution by 10 March 2008. Rapporteur Group Chairs are Hokyu Choi, Mark Cudak, and Mo-han Fong.

===== C80216m-07_231r2.pdf =====
Enhanced Hierarchical Modulation for IEEE 802.16m
Shu Wang, Li-Hsiang Sun, Sang G. Kim and Ki-Dong Lee
LG Electronics Mobile Research USA

* SISO scheme
* QPSK rotated by θ over a QPSK
* Goal increase minimal distance
* Generalized to 16QAM of QPSK 

===== C80216m-08_045r1.ppt =====
On the Multiple Access Schemes for IEEE 802.16m: Comparison of SC-FDMA and OFDMA
Yang-Seok Choi, Rongzhen Yang, Jiacheng Wang, Tom Harel, Yuval Lomnitz, Hujun Yin
Intel Corp.

* Link-Level Simulation Results in SISO: SC-FDMA is 3db behind OFDMA
* MIMO: Use of maximum likelihood detector (MLD) receiver
* TX power improvement  (Distributed/Localized edge/Localized center)
	* Gain of SC-FDMA over OFDMA under same PA size
		* 2.4dB/0.9dB/0.04dB
	*  Gain of SC-FDMA over OFDMA under same power and backoff
		*  1.2dB/0.45dB/0.02dB

===== S80216m-08_005r1.ppt =====
Interference Mitigation Performance with 4 antenna BS
Michael Erlihson, Doron Ezri
Runcom Technologies

* Require 4 antennas at the BS in SDD
* 
===== C80216m-07_213r4.doc =====
===== S80216m-07_213r2.ppt =====
Superposition-Coded Multiplexing: A Non-Orthogonal Multiplexing Scheme for the Downlink of IEEE 802.16m
Yunzhou Li,Shidong Zhou, Xibin, Xu, Xin Su, Xiaofeng Zhong, Jing Wang, Xiaolu Dong, Ying Du, Shanpeng Xiao, Wenqi Liao, Lian,Yang, Zhongkai Wang, Weijun Xu, Thomas Li
Tsinghua Univ., CATR, China Mobile, HUAWEI,Tianjin Hi-Tech Industrial Park, Tianjin Municipal Government, Legend Silicon Corp.

* Superposition-Coded Multiplexing

===== C80216m-07_218r5.doc =====
===== S80216m-07_218r5.ppt =====
A New Approach for Inter-cell Interference Randomization based on Cell/Sector-specific Interleaver Pattern|
Yunzhou Li,Shidong Zhou, Xibin, Xu, Xin Su, Xiaofeng Zhong, Jing Wang, Xiaolu Dong, Ying Du, Shanpeng Xiao, Wenqi Liao, Lian,Yang, Zhongkai Wang, Weijun Xu, Thomas Li|
Tsinghua Univ., CATR, China Mobile, HUAWEI,Tianjin Hi-Tech Industrial Park, Tianjin Municipal Government, Legend Silicon Corp.

* Interleave-Division Multiple-Access (IDMA)

===== S80216m-08_100r1.pdf =====
Proposal for Incorporating Single-carrier FDMA into 802.16m|
Jianfeng Kang, Adrian Boariu, Shaohua Li, Zexian Li| 

* pi/2 BPSK ?


===== S80216m-08_084.pdf =====
UL Multiple Access for 802.16m
HanGyu Cho, Minseok Noh, Sungho Park, Heejeong Cho, Jin Sam Kwak
LG Electronics

* Overall Comparison
	*  OFDMA
	o SCFDMA
	- Performance
* Multiplexing for control signal, data, an pilot
	* Flexibility
	o Restriction
	- OFDMA potential gain
* Channel dependent scheduling
	* Maximum gain
	o Reduced gain
	- OFDMA has about 3.4 dB gain when a UE gets 16 subbands out of 64 subbands
* Uplink MIMO
	* MLD feasible
	o MLD infeasible
	- MLD OFDMA has 5-6 dB gain over MMSE SCFDMA when CSM is used
* Postequalization SINR
	* No loss
	o SINR loss in freq. selective CH.
	- SC FDMA has about 3dB loss for DFT size of 32 when FFT size is 512 and Ped B CH is used
* PAPR/CM High Low
	* High
	o Low
	- SCFDMA has 2-2.5dB gain for QPSK