Abstract
In practical random access networks, a packet discard scheme is usually applied to alleviate the network congestion, where a packet will be discarded if its retransmission times reaches the limit K. In this paper, the effect of retransmission limit K on the throughput performance of slotted Aloha over Rayleigh fading channels is studied. Explicit expression of the maximum throughput is obtained as a function of the SINR threshold \(\mu \) and mean received SNR \(\rho \). The analysis shows that though the maximum throughput is independent of the retransmission limit K, the corresponding optimal initial transmission probability of nodes has to cautiously selected in accordance with the retransmission limit K and the backoff function \(\left\{ \omega _i\right\} _{i=0,...,K-1}\).
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Acknowledgments
This work was supported in part by National Natural Science Foundation of China under Grant 61801433, Grant 62001524, Grant 62001336, Grant 62001333, and Grant 61911540481, in part by the Science, Technology and Innovation Commission of Shenzhen Municipality under Grant 2021A04, in part by the open research fund of Key Lab of Broadband Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Telecommunications), Ministry of Education under Grant JZNY202105, in part by the Fundamental Research Funds for the Central Universities, Sun Yat-sen University, No. 2021qntd11, and in part by the Fundamental Research Funds for the Central Universities under Grant WUT: 2021IVB018.
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Li, P. et al. (2022). Throughput Analysis of Slotted Aloha with Retransmission Limit in Fading Channels. In: Liang, Q., Wang, W., Liu, X., Na, Z., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2021. Lecture Notes in Electrical Engineering, vol 878. Springer, Singapore. https://doi.org/10.1007/978-981-19-0390-8_95
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DOI: https://doi.org/10.1007/978-981-19-0390-8_95
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