Adaptive power allocation with user prioritization for downlink orthogonal frequency division multiple access systems

被引：0
|
作者：
Chee, TK [1 ]
Lim, CC [1 ]
Choi, JH [1 ]
机构：
[1] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia
来源：
2004 9TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS) | 2004年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Maximizing the capacity of a downlink orthogonal frequency division multiple access (OFDMA) system with prioritization of user-services is investigated. An iterative algorithm is proposed to determine the capacity of individual user from a limited and varying power budget when the channel is subjected to fading, shadowing and propagation path loss. Simulation shows that the proposed algorithm not only can obtain achievable capacity of the users' requested services but also conserve excess transmit power if a lesser power budget is adequate to achieve the desired capacity.
引用
收藏
页码：210 / 214
页数：5
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