A centralized power allocation algorithm for TDD CDMA system with smart antenna in a multi-cellular environment

被引：0

作者：

Li, JL ^{[1
]}

Wu, XG ^{[1
]}

Wang, B ^{[1
]}

Deng, G ^{[1
]}

Zhang, P ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Beijing 100876, Peoples R China

来源：

IEEE 2005 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, Vols 1 and 2 | 2005年

关键词：

power allocation; smart antenna; TDD CDM4;

D O I：

暂无

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：

In TDD CDMA systems, uplink and downlink work at the same frequency, which causes interference between them. The interference in uplink and downlink connection is analyzed respectively within a time slot. Adaptive beamforming is used in uplink receiver beamforming. Beam-steering method is used to achieve downlink transmission beamforming for complexity in downlink. From the beamforming gain and path gain between transmitter and receiver, a normialized gain matrix is constructed. With this matrix we propose an optimum. power allocation method that satisfies all users' SIR requirements at the minimum transmission power. ne power allocation algorithm provides an estimate of the optimum performance of all power control schemes.

引用

页码：1283 / 1286

页数：4