Volume 76, Number 6, December 2006
|Page(s)||1193 - 1199|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||16 November 2006|
Analysis of CDMA systems that are characterized by eigenvalue spectrum
Department of Computational Intelligence and Systems Science Tokyo Institute of Technology - Yokohama 2268502, Japan
2 The Institute of Japanese Union Scientists & Enginners 5-10-11 Sendagaya, Shibuyaku, Tokyo 1510051, Japan
Accepted: 19 October 2006
An approach to analyze the performance of the code division multiple access (CDMA) scheme, which is a core technology used in modern wireless communication systems, is provided. The approach characterizes the objective system by the eigenvalue spectrum of a cross-correlation matrix composed of signature sequences used in CDMA communication, which enable us to handle a wider class of CDMA systems beyond the basic model reported by Tanaka in Europhys. Lett., 54 (2001) 540. The utility of the scheme is shown by analyzing a system in which the generation of signature sequences is designed for enhancing the orthogonality.
PACS: 84.40.Ua – Telecommunications: signal transmission and processing; communication satellites / 75.10.Nr – Spin-glass and other random models / 89.70.+c – Information theory and communication theory
© EDP Sciences, 2006
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