Radio Resource Management for the Uplink OFDMA System with Imperfect CSI

被引：0
作者：
Liu, Lihan [1 ]
Wang, Zhuwei [2 ]
Zhang, Xing [3 ]
Wu, Hong [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Econ & Management, Beijing 100876, Peoples R China
[2] Beijing Univ Technol, Coll Elect Informat & Control Engn, Beijing 100124, Peoples R China
[3] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing 100876, Peoples R China
来源：
2015 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) | 2015年
关键词：
MULTIUSER OFDM; POWER ALLOCATION; NETWORKS; DOWNLINK; SUBCARRIER;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper investigates the effect of imperfect channel state information (CSI) on the performance of radio resource management for the uplink OFDMA system. First, we prove that the imperfect CSI introduces a constellation-point dependent and error-floor symbol error rate (SER), which correspondingly yields the nonconvex and nondifferentiable throughput function in real communication systems. Then, in the uplink OFDMA system, a bisection algorithm and BA-based algorithm are proposed for single-user and multi-user cases, respectively, for the adaptive resource allocation to minimize the total transmit power.
引用
收藏
页码：1764 / 1768
页数：5
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