DocumentCode :
2984026
Title :
A New Sub-carrier and Power Allocation Algorithm in Multi-user OFDM Systems
Author :
Dai, Renlin ; Li, Chisheng ; Wan, Guojin
Author_Institution :
Nanchang Univ., Nanchang
fYear :
2007
fDate :
18-21 April 2007
Firstpage :
1
Lastpage :
4
Abstract :
This paper describes a new resource allocation algorithm which performs dynamic sub-carrier and power allocation in multi-user OFDM systems. The aim is to maximize the sum of data rate while achieving proportional fairness among users under a total power and bit error rate constraint. Meanwhile, we maintain individual minimum rate requirements and QoS constraints. Simulation results are shown to compare the performance of the proposed algorithm with that of the previous algorithms, such as LINEAR, ITERATIVE and static TDMA. And the proposed method yields higher data rates and better performance in simulation. We also simulate the relation
Keywords :
OFDM modulation; resource allocation; QoS; dynamic subcarrier; multiuser OFDM System; power allocation algorithm; resource allocation algorithm; Bit error rate; Channel state information; Heuristic algorithms; Iterative algorithms; OFDM modulation; Power engineering and energy; Radio spectrum management; Resource management; Time division multiple access; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
Type :
conf
DOI :
10.1109/ICMMT.2007.381486
Filename :
4266245
Link To Document :
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