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Performance Evaluation of Multiple-Cell DS-CDMA Systems Over Correlated Nakagami-m Fading Environments

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Abstract

In this paper, the impact of the branch correlation on the performance of multiple-cell DS-CDMA cellular systems over Nakagami-m fading channels with arbitrary branch correlation is investigated. The received multipath-faded signals are assumed to experience identical but non-independent correlated Nakagami-m channels within the reference cell. A new closed-form formula for the joint probability density function (joint pdf) of the diversity combiner with arbitrary correlation coefficients in terms of the generalized Laguerre polynomial and the new expressions of average bit-error rate (BER) for the DS-CDMA system are given in this paper. The results, which were also compared with the performance of the single cell environments, demonstrate that the BER is significantly dependent on the correlation characteristic of diversity branching for both single-cell and multiple-cell environments.

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Authors and Affiliations

  1. Department of Communication Engineering, Da Yeh University, 112 Shan-Jeau, Rd. Da-Tsuen, Chang-Hua, 51505, Taiwan, R.O.C.

    Joy Iong-Zong Chen

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  1. Joy Iong-Zong Chen
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Correspondence to Joy Iong-Zong Chen.

Additional information

Joy I. Z. Chen was born in Taiwan. He received his B.Sc degree in electronics engineering from the National Taiwan Technical University, Taipei, Taiwan, and M.Sc degree in electrical engineering from the Da Yeh University, Chung Hwa, Taiwan, in 1985 and 1995, respectively, and Ph.D. degree in electrical engineering from National Defense University, Tao-Yuan, Taiwan, in 2001.

He is currently an assistant professor of Department of Communication Engineering, Da Yeh University at Chang-Hwa Taiwan. Prior to joining the Da Yeh University, he worked at the Control Data Company (Taiwan) as a technical manager since September 1985–September 1996. His research interests include wireless communications, communication theory, and spread spectrum technical.

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Chen, J.IZ. Performance Evaluation of Multiple-Cell DS-CDMA Systems Over Correlated Nakagami-m Fading Environments. Wireless Pers Commun 33, 21–34 (2005). https://doi.org/10.1007/s11277-005-7199-2

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