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On the selection of relays' positions in diamond relay networks

Published: 28 June 2010 Publication History

Abstract

Diamond relay network is a kind of efficient cooperative network, in which the source user selects two neighbors as relays and cooperates with both of them. In our previous work, we have studied its transmission rates for different coding and relaying schemes and proved that the performance of SRP scheme (Spatial Reuse Pattern) is better than others. To further improve the performance, we incorporated the opportunistic scheduling and studied how to use buffers adapted to the time varying Rayleigh fading channel. However, the position information of users has not been considered yet which actually has a great influence on the performance of the diamond relay channel. Thus, in this paper, it is the first time that we study how to select the position of two relays to guarantee the performance of the throughput and delay constraint. This study facilitates the practical application of diamond relay networks since the source user knows that from where selecting neighbors as relays will bring nice performance. Finally, the simulation results confirm our analysis and some interesting illustrations show much novelty.

References

[1]
M. Gastpar, G. Kramer, and P. Gupta. The multiple-relay channel: Coding and antenna-clustering capacity. In 2002 IEEE International Symposium on Information Theory, 2002. Proceedings, 2002.
[2]
B. Schein and R. Gallager. The Gaussian parallel relay network. In IEEE International Symposium on Information Theory, 2000. Proceedings, 2000.
[3]
E. Van Der Meulen. Three-terminal communication channels. Advances in Applied Probability, pages 120--154, 1971.
[4]
Q. Wang, P. Fan, and K. B. Letaief. Throughput improvement and its tradeoff with the queuing delay in the diamond relay networks. Online Published in Wireless Communications and Mobile Computing, 2009.
[5]
F. Xue and S. Sandhu. Cooperation in a half-duplex gaussian diamond relay channel. IEEE Transactions on Information Theory, 53(10):3806--3814, 2007.

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  • (2010)On the relay position selection for the diamond network over Nakagami-m fading channelsWireless Communications and Mobile Computing10.1002/wcm.107510:12(1548-1562)Online publication date: 27-Dec-2010

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        cover image ACM Other conferences
        IWCMC '10: Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
        June 2010
        1371 pages
        ISBN:9781450300629
        DOI:10.1145/1815396
        Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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        Published: 28 June 2010

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        Author Tags

        1. cooperation
        2. diamond relay networks
        3. position
        4. relay

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        • (2010)On the relay position selection for the diamond network over Nakagami-m fading channelsWireless Communications and Mobile Computing10.1002/wcm.107510:12(1548-1562)Online publication date: 27-Dec-2010

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