DocumentCode :
506706
Title :
Performance analysis of power optimization and user scheduling in multi-user MIMO-OFDM systems
Author :
Hang, Juan ; Fan, Zhen ; She, Feng
Author_Institution :
Eng. Training Center, Shanghai Second Polytech. Univ., Shanghai, China
Volume :
3
fYear :
2009
fDate :
20-22 Nov. 2009
Firstpage :
238
Lastpage :
242
Abstract :
This paper deals with the design and analysis of joint user scheduling and power optimization for multi-antenna OFDM systems with DPC, ZF-DPC, ZFBF and TDMA transmit strategies. We consider the general multiuser downlink scheduling problem with multiuser rate constraints. We given the power duality relationship between downlink and uplink. Based on channel state information, we present joint user selection algorithms, and we also accordingly give the power optimization algorithm with rate constraints. Simulation results show that the presented user scheduling and power minimization algorithms can achieve good performance, at the same time, the algorithms can also guarantee fairness among users.
Keywords :
MIMO communication; OFDM modulation; time division multiple access; TDMA transmit strategy; channel state information; joint user selection algorithm; multi-antenna OFDM system; multiuser MIMO-OFDM system; multiuser downlink scheduling problem; multiuser rate constraints; orthogonal frequency division multiplexing; performance analysis; power duality relationship; power minimization algorithm; power optimization algorithm; time division multiple access; user scheduling; Base stations; Broadcasting; Design engineering; Design optimization; Downlink; Minimization methods; OFDM; Performance analysis; Power engineering and energy; Scheduling algorithm;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Computing and Intelligent Systems, 2009. ICIS 2009. IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-4754-1
Electronic_ISBN :
978-1-4244-4738-1
Type :
conf
DOI :
10.1109/ICICISYS.2009.5358171
Filename :
5358171
Link To Document :
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