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Downlink Performance Analysis of Synchronous Multi-Cell MC-CDMA Systems with Code Hopping under Correlated Fading Channels
Jayong KOO Youngnam HAN
Publication
IEICE TRANSACTIONS on Communications
Vol.E88-B
No.7
pp.2955-2961 Publication Date: 2005/07/01 Online ISSN:
DOI: 10.1093/ietcom/e88-b.7.2955 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multicarrier CDMA, multiple user interference, co-channel interference, Gaussian approximation,
Full Text: PDF(527.3KB)>>
Summary:
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.
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