Performance of Adaptive Array Antennas with Multicarrier DS/CDMA in a Mobile Fading Environment(Special Issue on Third Generation Land Mobile Communication Systems)
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概要
- 論文の詳細を見る
For usage in fading environments, the idea of utilizing radio signal processing with software programmable devices promises greater flexibility and functionality. However, to realize these benefits very high performance DPSs and AD converters are required, especially for adaptive antennas with CDMA. One potential method of reducing theimplementation complexity is to employ multicarrier(MC)modulation as it allows parallel signal processing in addition to its benefits in combating fading and ISI effects. This paper proposes a system utilizing MC DS/CDMA and arecursive adaptive array antenna processing algorithm for estimating the array response vector(array manifold)andhence the optimal weights. In order to evaluate this system performance results obtained through computer simulations are presented. The proposed MC system improves the accuracy of the direction-of-arrival(DOA)estimation of thesignal by 2 degrees as compared with a single carrier system. It is also shownthat the proposed adaptive array antenna algorithm for MC DS/CDMA reducesthe number of iterations of the powermethod significantly and allows parallel processing of the adaptive algorithm.
- 社団法人電子情報通信学会の論文
- 1998-07-25
著者
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Sanada Yukitoshi
Department Of Electrical And Computer Engineering University Of Victoria
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Sanada Yukitoshi
The Department Of Electrical And Electronic Engineering Tokyo Institute Of Technology
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Padilla Michael
The Department Of Electrical Engineering The Universityof California San Diego 9500 Gilmondrive
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Araki K
Graduate School Of Engineering Tokyo Institute Of Technology
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Araki K
Saitama Univ. Uarawa‐shi Jpn
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Araki Kiyomichi
The Department Of Computer Science Tokyo Institute Of Technology
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Sanada Y
Faculty Of Engineering Tokyo Institute Of Technology
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