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Differential Maximum Ratio Combining (MRC)-Based Throughput Analysis on Dual-Fading Models of Slotted-Aloha CDMA Systems

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Abstract

In this paper we investigate throughputs of Slotted-ALOHA code division multiple access systems with differential detection upon L-branch antenna by means of maximum ratio combining (MRC) diversity technique. We investigate the effects of co-channel interference by employing two different fading models (i.e. between the desired signals and its interferences.) We consider systems under Nakagami/Nakagami and Rician/Nakagami fading environments. The purpose of employing MRC diversity and differential phase shift keying with L-branch antenna is to overcome multipath fading interference in order to enhance the performance of the systems. Our research indicates that the implementation of L-branch antenna in the receiver have reasonably increased the throughputs of the systems. Furthermore, we also investigate the inverse relation between interference signal and the throughputs of the systems. We further point out that the value of Nakagami fading parameter M and Rician factor K are proportional to the achievable throughputs of the systems.

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Acknowledgments

The author gratefully acknowledges the contribution from the anonymous referees whose efforts greatly improved the presentation of this manuscript.

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Authors and Affiliations

  1. Department of Electrical Engineering, Faculty of Engineering, University of Indonesia, New Campus of UI, Depok, 16424, Indonesia

    H. Saragih

  2. Faculty of Engineering, The University of New South Wales, Kensington, NSW, Australia

    F. Santoso

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  1. H. Saragih
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  2. F. Santoso
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Correspondence to F. Santoso.

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Saragih, H., Santoso, F. Differential Maximum Ratio Combining (MRC)-Based Throughput Analysis on Dual-Fading Models of Slotted-Aloha CDMA Systems. Int J Wireless Inf Networks 21, 154–160 (2014). https://doi.org/10.1007/s10776-014-0237-9

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  • DOI: https://doi.org/10.1007/s10776-014-0237-9

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