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BER Performance of Downlink MC-CDMA with ORC in Nakagami-m Fading Channel
Yusung LEE Namshik KIM Hyuncheol PARK
IEICE TRANSACTIONS on Communications
Publication Date: 2009/04/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Transmission Systems and Transmission Equipment for Communications
MC-CDMA, ORC, BER, Nakagami-m fading,
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In this letter, we derive an exact bit error rate (BER) expression for downlink multi-carrier code division multiple access (MC-CDMA) systems with orthogonal restoring combining (ORC) in Nakagami-m fading channel. A simple approximated expression is also provided. For uncoded and coded MC-CDMA systems, the BER expressions are calculated based on the moment generating function (MGF) of the combined fading random variable. The derived analytic expressions are verified by simulation results.