TY - GEN
T1 - Multiuser hybrid switched-selection diversity systems
AU - Shaqfeh, Mohammad
AU - Alnuweiri, Hussein M.
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2011/9
Y1 - 2011/9
N2 - A new multiuser scheduling scheme is proposed and analyzed in this paper. The proposed system combines features of conventional full-feedback selection-based diversity systems and reduced-feedback switch-based diversity systems. The new hybrid system provides flexibility in trading-off the channel information feedback overhead with the prospected multiuser diversity gains. The users are clustered into groups, and the users' groups are ordered into a sequence. Per-group feedback thresholds are used and optimized to maximize the system overall achievable rate. The proposed hybrid system applies switched diversity criterion to choose one of the groups, and a selection criterion to decide the user to be scheduled from the chosen group. Numerical results demonstrate that the system capacity increases as the number of users per group increases, but at the cost of more required feedback messages. © 2011 IEEE.
AB - A new multiuser scheduling scheme is proposed and analyzed in this paper. The proposed system combines features of conventional full-feedback selection-based diversity systems and reduced-feedback switch-based diversity systems. The new hybrid system provides flexibility in trading-off the channel information feedback overhead with the prospected multiuser diversity gains. The users are clustered into groups, and the users' groups are ordered into a sequence. Per-group feedback thresholds are used and optimized to maximize the system overall achievable rate. The proposed hybrid system applies switched diversity criterion to choose one of the groups, and a selection criterion to decide the user to be scheduled from the chosen group. Numerical results demonstrate that the system capacity increases as the number of users per group increases, but at the cost of more required feedback messages. © 2011 IEEE.
UR - http://hdl.handle.net/10754/564431
UR - http://ieeexplore.ieee.org/document/6139848/
UR - http://www.scopus.com/inward/record.url?scp=84857579413&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2011.6139848
DO - 10.1109/PIMRC.2011.6139848
M3 - Conference contribution
SN - 9781457713484
SP - 1934
EP - 1938
BT - 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -