Abstract
In this paper, we take a close look at the performance of MRC diversity reception of OFDM signals in multipath slowly fading Nakagami-m channels. We derive an exact expression for the probability density function (PDF) of a sum of Nakagami-m random phase vectors, which is used to derive a closed-form expression for the error-rate of OFDM signals using multichannel reception with maximal ratio combining. Consequently, the average-symbol error rate for M-ary modulation can be expressed in terms of confluent hypergeometric function, which can be easily evaluated numerically. It is observed that depending on the number of channel taps, the error-rate performance does not necessarily improve with increasing Nakagami-m fading parameters
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Khedr, M.E., Alnahhal, A.F., AbdelRassoul, R.A. (2007). MRC Diversity Reception of OFDM with M-ary Modulation over Frequency-Selective Nakagami-m Fading Channels. In: Labiod, H., Badra, M. (eds) New Technologies, Mobility and Security. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6270-4_21
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DOI: https://doi.org/10.1007/978-1-4020-6270-4_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6269-8
Online ISBN: 978-1-4020-6270-4
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