On the impact of delay constraint on the multicast outage in wireless fading environment

Khoshkholgh, Mohammad G. and Navaie, Keivan (2015) On the impact of delay constraint on the multicast outage in wireless fading environment. In: IEEE International Conference on Communications (ICC), 2015. IEEE, pp. 3714-3719. ISBN 9781467364324

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In this paper we investigate single-hop multicast transmission in which randomly located multiple transmitters multicast packets to a cluster of receivers. Packet retransmission is known as a promising mechanism for improving the transmission reliability. Our focus is on evaluating (i) the minimum required delay (retransmission attempts), τ*, for establishing an outage-free multicast, where a transmitted packet is successfully decoded by entire nodes in the cluster, and (ii) Multicast Progress Radius (MPR) for a given delay constraint. MPR indicates how far, on average, a packet can successfully progress in a cluster without outage while the retransmission delay is restricted. Assuming general fading distribution, we derive closed-form expressions for the cumulative distribution function of τ*, and MPR. By simulations we confirmed our analysis and studied the impact of several system parameters on the MPR. Based on results of this paper we conclude that outage-free multicast requires a very large number of retransmission attempts, thus not practically achievable only based on retransmission.

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28 Jan 2015 15:59
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17 Sep 2023 03:54