Title :
An Efficient Proportional Resource Allocation Algorithm in MIMO-OFDMA Systems
Author :
Zhao, Jie ; Li, Youming
Author_Institution :
Inst. of Commun. Technol., Ningbo Univ., Ningbo, China
Abstract :
Dynamic resource allocation (DRA) in MIMO- OFDMA systems supporting multiple services is studied. A low complexity linear algorithm based on solving an RA optimization problem subject to an additional proportional fairness constraint is developed. Computer simulation results demonstrate that the proposed algorithm performs well, and the proportionality of rate among the users approaches the proportional rate constraint as the increasing of the available subcarriers. Furthermore, it has a lower computational complexity.
Keywords :
MIMO communication; OFDM modulation; computational complexity; frequency division multiple access; optimisation; resource allocation; MIMO-OFDMA systems; RA optimization problem; computational complexity; computer simulation; dynamic resource allocation; efficient proportional resource allocation algorithm; low complexity linear algorithm; Algorithm design and analysis; Complexity theory; Downlink; Heuristic algorithms; Mathematical model; Optimization; Resource management;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040035
