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Title: Spectral Efficiency of Asynchronous MC-CDMA With Frequency Offset Over Correlated Fading
Authors: Ahmed, Junaid
Keywords: COMSATS
spectral efficiency
Asynchronous multicarrier code-division multiple-access (MC-CDMA)
correlated fading
multiple access interference
inter-carrier interference
frequency offset
Issue Date: 19-Mar-2013
Publisher: IEEE
Abstract: Multiple-access interference (MAI) and intercarrier interference (ICI) due to a carrier frequency offset are two major factors that deteriorate the performance of multicarrier code-division multiple access (MC-CDMA) in wireless communications. This paper presents a new mathematical analysis for the spectral efficiency of asynchronous MC-CDMA communication systems over a frequency-selective Rayleigh fading environment. It employs accurate statistical models for MAI and ICI that account for the correlation between adjacent subcarriers to derive a new simple expression. An approximate expression for the spectral efficiency is also provided, which reduces complexity.
ISSN: 1939-9359
Appears in Collections:Journals

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