Matched filter bound optimization for multiuser downlink transmit beamforming

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI:10.1109/ICUPC.1998.733054

G. Montalbano, D. Slock

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引用次数: 39

Abstract

This paper is devoted to the optimization of the matched filter bounds (MFB) of different co-channel users, using adaptive antenna arrays at base stations for downlink transmit beamforming in cellular mobile communication systems. We mainly consider time division multiple access (TDMA) frequency division duplexing (FDD) based systems. Note that in the case of time division duplexing (TDD), under terrain assumptions the downlink channel can be assumed to be practically the same as the uplink channel. On the contrary, when using FDD, the downlink channel can not be directly observed and estimated. That makes FDD based systems most difficult to deal with, although the proposed criteria and methods are general and suitable for both FDD and TDD. Problem formulations are provided for both spatial division multiple access (SDMA) and non-SDMA spectrum reuse techniques. Novel analytical solutions and algorithms are derived, implementation issues are discussed and simulations are provided in order to compare different approaches.

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多用户下行传输波束形成的匹配滤波器绑定优化

本文研究了蜂窝移动通信系统下行发射波束形成中，利用基站自适应天线阵列优化不同同信道用户的匹配滤波器边界(MFB)。我们主要考虑基于时分多址(TDMA)频分双工(FDD)的系统。注意，在时分双工(TDD)的情况下，在地形假设下，下行信道可以假定与上行信道几乎相同。相反，当使用FDD时，下行信道不能直接观察和估计。这使得基于FDD的系统最难以处理，尽管所建议的标准和方法是通用的，并且适用于FDD和TDD。给出了空分多址(SDMA)和非SDMA频谱复用技术的问题公式。本文推导了新的解析解和算法，讨论了实现问题，并提供了仿真以比较不同的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)

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