TY - GEN
T1 - Multiuser hybrid switched-selection diversity systems
AU - Shaqfeh, Mohammad
AU - Alnuweiri, Hussein
AU - Alouini, Mohamed Slim
PY - 2011
Y1 - 2011
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.
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.
KW - Multiuser scheduling
KW - hybrid switched-selection diversity
KW - reduced feedback
UR - https://www.scopus.com/pages/publications/84857579413
U2 - 10.1109/PIMRC.2011.6139848
DO - 10.1109/PIMRC.2011.6139848
M3 - Conference contribution
AN - SCOPUS:84857579413
SN - 9781457713484
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1934
EP - 1938
BT - 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011
Y2 - 11 September 2011 through 14 September 2011
ER -