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Conference Papers Year : 2021

Cooperative Encoding and Decoding of Mixed Delay Traffic under Random-User Activity

Abstract

This paper analyses the multiplexing gain (MG) achievable over Wyner's symmetric network with random user activity and random arrival of mixed-delay traffic. The mixeddelay traffic is composed of delay-tolerant traffic and delaysensitive traffic where only the former can benefit from transmitter and receiver cooperation since the latter is subject to stringent decoding delays. The total number of cooperation rounds at transmitter and receiver sides is limited to D rounds. We derive inner and outer bounds on the MG region. In the limit as D → ∞, the bounds coincide and the results show that transmitting delaysensitive messages does not cause any penalty on the sum MG. For finite D our bounds are still close and prove that the penalty caused by delay-sensitive transmissions is small.
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Dates and versions

hal-03349793 , version 1 (20-09-2021)

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Homa Nikbakht, Michèle Wigger, Shlomo Shamai, Jean-Marie Gorce. Cooperative Encoding and Decoding of Mixed Delay Traffic under Random-User Activity. ITW 2021 - IEEE Information Theory Workshop, Oct 2021, Kanazawa, Japan. pp.1-6, ⟨10.1109/ITW48936.2021.9611402⟩. ⟨hal-03349793⟩
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