A New Blind Adaptive Array Antenna Based on CMA Criteria for M-Ary/SS Signals Suitable for Software Defined Radio Architecture

Miho KOZUMA; Atsushi SASAKI; Yukihiro KAMIYA; Takeo FUJII; Kenta UMEBAYASHI; Yasuo SUZUKI

doi:10.1093/ietfec/e91-a.8.1982

Special Section on Signal Processing

A New Blind Adaptive Array Antenna Based on CMA Criteria for M-Ary/SS Signals Suitable for Software Defined Radio Architecture

Miho KOZUMA, Atsushi SASAKI, Yukihiro KAMIYA, Takeo FUJII, Kenta UMEBAYASHI, Yasuo SUZUKI

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Keywords: blind signal processing, M-ary/SS, adaptive array antenna

JOURNAL RESTRICTED ACCESS

2008 Volume E91.A Issue 8 Pages 1982-1989

DOI https://doi.org/10.1093/ietfec/e91-a.8.1982

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Abstract

M-ary/SS is a version of Direct Sequence/Spread Spectrum (DS/SS) aiming to improve the spectral efficiency employing orthogonal codes. However, due to the auto-correlation property of the orthogonal codes, it is impossible to detect the symbol timing by observing correlator outputs. Therefore, conventionally, a preamble has been inserted in M-ary/SS, signals. In this paper, we propose a new blind adaptive array antenna for M-ary/SS systems that combines signals over the space axis without any preambles. It is surely an innovative approach for M-ary/SS. The performance is investigated through computer simulations.

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