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Downlink Performance Analysis of Synchronous Multi-Cell MC-CDMA Systems with Code Hopping under Correlated Fading Channels
IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
multicarrier CDMA, multiple user interference, co-channel interference, Gaussian approximation,
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In this paper, downlink performance of multicarrier CDMA (MC-CDMA) systems under correlated fading channels is analytically investigated. Under code hopping, a signal to interference plus noise ratio (SINR) and bit error rate (BER) performance are derived in multi-cell environments. In addition, specific conditions to validate the commonly used Gaussian approximation of an interference plus noise distribution in MC-CDMA systems are discussed. It is proved that the approximation is adequate in case of low correlation between subcarriers and a large spreading factor (SF). The proposition is confirmed through comparison between analytical and simulation results.