基于RA准则的多用户OFDM自适应资源分配算法改进

Journal of Applied Sciences ›› 2007, Vol. 25 ›› Issue (1): 21-25.

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Improved Rate-Maximization-Based Adaptive Resource Allocation for Multiuser OFDM Systems

WANG Yan-jun, CHEN Qian-bin, KUANG Yu-jun

Special Research Center for Optical Internet and Wireless Information Networks, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2005-11-25 Revised:2006-03-06 Online:2007-01-31 Published:2007-01-31

Abstract

Abstract:

Optimal adaptive resource allocation algorithms are computationally complex and time consuming, which is unfavorable for real-time application.To overcome this shortcoming, a rate-maximization-based low complexity adaptive resource allocation is proposed for multiuser OFDM systems, which maximizes the overall data rate under the constraint of total transmit power and BER performance.Simulation results show that the algorithm has better performance in terms of fairness and computational complexity comparing with original algorithm.

Key words: rate adaptive (RA), multiuser OFDM, adaptive resource allocation

CLC Number:

TN911

WANG Yan-jun, CHEN Qian-bin, KUANG Yu-jun. Improved Rate-Maximization-Based Adaptive Resource Allocation for Multiuser OFDM Systems[J]. Journal of Applied Sciences, 2007, 25(1): 21-25.

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URL: https://www.jas.shu.edu.cn/EN/

https://www.jas.shu.edu.cn/EN/Y2007/V25/I1/21

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Improved Rate-Maximization-Based Adaptive Resource Allocation for Multiuser OFDM Systems

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