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Throughput Analysis of Adaptive Slotted-ALOHA CDMA over a Multipath Fading Channel with Capture Effects

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Abstract

This paper aims to investigate the performance of adaptive slotted-ALOHA direct sequence code division multiple access (DS-CDMA) over a multipath fading channel with capture effects. The transmission rate control algorithm has been proposed in response to current traffic conditions. Furthermore, since the performance of S-ALOHA DS CDMA shall decrease in the presence of fading channel environments the capture effect technique has been subsequently proposed. Accordingly, the effectiveness of the throughputs relies on the value of capture probability and the probability of packets being successfully sent. Research indicates that the throughputs of S-ALOHA DS-CDMA (using the following transmission rates: v b/s, 2v b/s, 4v b/s) with capture effects and adaptive S-ALOHA DS-CDMA with capture effects shall increase inverse proportionally to the length of bits (B), the value of different number of paths L p, as well as capture ratios Q.

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Acknowledgments

The authors wish to thank Dr. Gunawan Wibisono and Dr. Eko Tjipto Rahardjo from the Department of Electrical Engineering, Faculty of Engineering, the University of Indonesia for their invaluable insights for the completion of this research.

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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

    Hoga Saragih

  2. School of Electrical Engineering and Telecommunications, Faculty of Engineering, The University of New South Wales, Sydney, NSW, Australia

    Fendy Santoso

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  1. Hoga Saragih
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  2. Fendy Santoso
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Correspondence to Fendy Santoso.

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Saragih, H., Santoso, F. Throughput Analysis of Adaptive Slotted-ALOHA CDMA over a Multipath Fading Channel with Capture Effects. Int J Wireless Inf Networks 16, 217–224 (2009). https://doi.org/10.1007/s10776-009-0098-9

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  • DOI: https://doi.org/10.1007/s10776-009-0098-9

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