Optimization of wireless multicast systems employing hybrid-ARQ with chase combining
Kim J, Jin H, Sung DK, Schober R (2010)
Publication Type: Journal article
Publication year: 2010
Journal
Book Volume: 59
Pages Range: 3342-3355
Article Number: 5482147
Journal Issue: 7
Abstract
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.
Authors with CRIS profile
Involved external institutions
Korea Advanced Institute of Science and Technology (KAIST)
Korea, Republic of (KR)
University of British Columbia
Canada (CA)
Korea, Republic of (KR)
University of British Columbia
Canada (CA)
How to cite
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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