Kim J, Jin H, Sung DK, Schober R (2010)
Publication Type: Journal article
Publication year: 2010
Book Volume: 59
Pages Range: 3342-3355
Article Number: 5482147
Journal Issue: 7
The throughput of conventional wireless multicast systems is limited by the multicast user with the lowest channel quality, which leads to a low throughput, particularly if the number of multicast users is large. In this paper, we show that hybrid-automatic repeat request with Chase combining (HARQ-CC) is a promising technique to overcome this problem and optimize the corresponding transmission rate. We analyze the throughput of wireless multicast systems with HARQ-CC under various channel conditions and derive a closed-form approximation for the optimal rate. The numerical evaluation of our analytical expressions reveals that HARQ-aided multicast outperforms conventional multicast in most channel environments. To further improve performance, we propose a dynamic rate-allocation scheme that combines the advantages of conventional multicast and HARQ-aided multicast. © 2006 IEEE.
APA:
Kim, J., Jin, H., Sung, D.K., & Schober, R. (2010). Optimization of wireless multicast systems employing hybrid-ARQ with chase combining. IEEE Transactions on Vehicular Technology, 59(7), 3342-3355. https://dx.doi.org/10.1109/TVT.2010.2052117
MLA:
Kim, Junsu, et al. "Optimization of wireless multicast systems employing hybrid-ARQ with chase combining." IEEE Transactions on Vehicular Technology 59.7 (2010): 3342-3355.
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