FDD DS-CDMA downlink beamforming by modifying uplink beamforming weights

被引：0

作者：

Liang, YC ^{[1
]}

Chin, FPS ^{[1
]}

机构：

[1] Ctr Wireless Commun, Singapore 117674, Singapore

来源：

IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2000, VOLS 1-6, PROCEEDINGS: BRINGING GLOBAL MOBILITY TO THE NETWORK AGE | 2000年

关键词：

D O I：

暂无

中图分类号：

U [交通运输];

学科分类号：

08 ; 0823 ;

摘要：

Two new suboptimal algorithms are proposed for downlink beamforming in FDD DS-CDMA mobile radio by using uplink beamforming weights. One is null constraint (NC) method, which constrains same null positions for both uplink and downlink. The other is frequancy calibration (FC) method, which constrains the same main beam positions for both links. Even though the new algorithms are simple, they may provide larger capacity enhancement as compared with the DOA methods which just direct the main beam toward the desired user.

引用

页码：170 / 174

页数：5

共 5 条

[1] LIANG YC, 2000, UNPUB IEEE JSAC
[2] LIANG YC, 1999, P VTC 99 FALL AMST N, P17
[3] LIANG YC, 1999, P PIMRC 99 OS JAP SE
[4] Joint optimal power control and beamforming in wireless networks using antenna arrays
Rashid-Farrokhi, F
Tassiulas, L
Liu, KJR
[J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1998, 46 (10) : 1313 - 1324
[5] Transmit beamforming and power control for cellular wireless systems
Rashid-Farrokhi, F
Liu, KJR
Tassiulas, L
[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) : 1437 - 1450

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