Optimal power and subcarrier allocation with partial side information for downlink OFDMA system

doi:10.1016/S1005-8885(09)60507-0

中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (5): 50-57.doi: 10.1016/S1005-8885(09)60507-0

Optimal power and subcarrier allocation with partial side information for downlink OFDMA system

曾令康¹,常玲君¹,刘元安²,谢刚¹

1. 北京邮电大学
2. 北京邮电大学无线通信中心

收稿日期:2009-10-20 修回日期:2010-05-11 出版日期:2010-10-30 发布日期:2010-10-31
通讯作者: 曾令康 E-mail:dakang760@yahoo.com.cn
基金资助:
Sino-Swedish IMT - Advanced Cooperation Project (No.2008DFA11780);国家级.国家自然科学基金;国家级.国家“863计划”项目

Optimal power and subcarrier allocation with partial side information for downlink OFDMA system

Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2009-10-20 Revised:2010-05-11 Online:2010-10-30 Published:2010-10-31

摘要/Abstract

摘要：

In this paper, we investigate the power and subcarrier allocation issue in the case of partial side information for downlink orthogonal frequency division multiple access (OFDMA) system. Relaxation method is utilized to characterize the necessary conditions of the optimal solution and the uniqueness of the optimal solution is proved. The game theoretical concept, surplus function is also introduced to analyze the optimal solution. Based on the theoretical analysis, we propose iterative surplus balancing algorithm (ISBA) that can jointly assign the power and subcarriers in multiple rounds, and then the optimality of ISBA is proved. Simulation results are presented to show the characteristics of the theoretical analysis and ISBA.

关键词:

resource allocation, partial side information, OFDMA, surplus function, game theory

Abstract:

Key words:

resource allocation, partial side information, OFDMA, surplus function, game theory

参考文献

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Optimal power and subcarrier allocation with partial side information for downlink OFDMA system

Optimal power and subcarrier allocation with partial side information for downlink OFDMA system

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