A Modified DCMP Algorithm for SDMA Receiver in Base Station of Broadband Fixed Wireless Access Systems (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)

概要

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Space division multiple access (SDMA) is an attractive technique to increase the channel capacity of wireless communication systems. In this paper, we first propose a new process to a ccomplish SDMA using an adaptive array at a base station receiver of broadband fixed wireless access (FWA) systems. Unlike other methods, the proposed process does not need highly accurate direction-of-arrival (DOA) estimation and issu it able to Directionally Constrained Minimization of Power (DCMP) algorithm in order to serve multiple fixed terminals. A newly modified DCMP with phase only control is proposed as well. The algorithm to control phase weights, uses only the array output power and does not require the complex baseb and signals from individual array elements. The pattern measurement results in an anechoic chamber show that the proposed algorithm can direct a null to an interference while maintaining the gain to the desired signal.
社団法人電子情報通信学会の論文
2001-07-01