Hybrid ARQ Scheme for Reliable Multicast in Wireless ATM Networks 


Vol. 27,  No. 5, pp. 392-403, May  2002


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  Abstract

In general, ARQ techniques are used in a unicast environment to guarantee reliable data delivery. However, they do not scale well to the multicast environment where large numbers of receivers reside, since uncorrelation of cell losses reduces the effectiveness of retransmissions. In such cases, erasure codes can be used to reduce the effects of independent cell losses among receivers. In this paper, we propose a simple and effective hybrid ARQ scheme, which we shall refer to as the ESMC(Early Stop Multicast) scheme that uses erasure codes to guarantee reliable data delivery to a group of receivers in wireless ATM networks. In this scheme, source data are segmented into a number of blocks, each with m cells, then encoded into ?? (??＞ m) cells. The encoded cells are transmitted to the multicast receivers over wireless channels. The transmission of one block may be finished as long as all multicast receivers succeed to receive more than m out of the ?? cells correctly. And ARQ techniques are used for retransmitting the corrupted cells, when numerous cell losses are occurred by errors in wireless environments. In particular, efficiency has been derived analytically and compared with investigated efficiency by means of simulations in A WGN(Additive White Gaussian Noise) and Rayleigh fading channels.

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  Cite this article

[IEEE Style]

S. Kim and Y. Cho, "Hybrid ARQ Scheme for Reliable Multicast in Wireless ATM Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 5, pp. 392-403, 2002. DOI: .

[ACM Style]

Sun-myeng Kim and Young-jong Cho. 2002. Hybrid ARQ Scheme for Reliable Multicast in Wireless ATM Networks. The Journal of Korean Institute of Communications and Information Sciences, 27, 5, (2002), 392-403. DOI: .

[KICS Style]

Sun-myeng Kim and Young-jong Cho, "Hybrid ARQ Scheme for Reliable Multicast in Wireless ATM Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 5, pp. 392-403, 5. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880