A Fast Blind Multiple Access Interference Reduction in DS/CDMA Systems Based on Adaptive Projected Subgradient Method(Signal Processing for Communications)(<Special Section>Digital Signal Processing)
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概要
- 論文の詳細を見る
This paper presents a novel blind multiple access interference (MAI) suppression filter in DS/CDMA systems. The filter is adaptively updated by parallel projections onto a series of convex sets. These sets are defined based on the received signal as well as a priori knowledge about the desired user's signature. In order to achieve fast convergence and good performance at steady state, the adaptive projected subgradient method (Yamada et al., 2003) is applied. The proposed scheme also jointly estimates the desired signal amplitude and the filter coefficients based on an approximation of an EM type algorithm, following the original idea proposed by Park and Doherty, 1997. Simulation results highlight the fast convergence behavior and good performance at steady state of the proposed scheme.
- 社団法人電子情報通信学会の論文
- 2004-08-01
著者
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YAMADA Isao
the Dept. of Communications and Integrated Systems, Graduate School of Science and Engineering, Toky
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Sakaniwa Kohichi
The Dept. Of Electrical And Electronic Eng. Tokyo Institute Of Technology
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Sakaniwa Kohichi
The Deoartament Of Communications And Integrated Systems Tokyo Institute Of Technology
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CAVALCANTE Renato
the Departament of Communications and Integrated Systems, Tokyo Institute of Technology
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Cavalcante Renato
The Departament Of Communications And Integrated Systems Tokyo Institute Of Technology
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Yamada Isao
The Departament Of Communications And Integrated Systems Tokyo Institute Of Technology
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