Iterative bit and power allocation for multi-cell orthogonal frequency division multiplexing with minimum variance distortionless response beamforming

被引：0

作者：

Chen, Y. -F. ^{[1
]}

Lin, C. -Y. ^{[2
]}

Chen, L. -Y. ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Commun Engn, Jhongli 32001, Taoyuan County, Taiwan

[2] Natl Cent Univ, Dept Elect Engn, Jhongli 32001, Taoyuan County, Taiwan

来源：

IET COMMUNICATIONS | 2009年 / 3卷 / 11期

关键词：

RESOURCE-ALLOCATION; OFDM SYSTEMS; PERFORMANCE;

D O I：

10.1049/iet-com.2008.0494

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper develops bit and power allocation schemes with beamforming for multi-cell orthogonal frequency division multiplexing (OFDM) systems on uplink. The model of the multi-cell channel with frequency reuse is considered. The transmit signal from each mobile causes interference to the received signals of other base stations. The schemes aim to minimise the total mobile transmit power while satisfying the required data rate and the bit error rate (BER) of each mobile. The proposed schemes offer better performance than that of the fixed bit allocation method. The proposed distributed allocation scheme reduces computational complexity compared to the proposed centralised multi-user greedy method with insignificant performance degradation. The simulation results are presented to demonstrate the efficacy of the proposed schemes.

引用

页码：1808 / 1819

页数：12

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