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Relay Selection Algorithm with Simplified Precoding for MIMO Multiple Relay Channels

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Abstract

Considering an Amplify-and-Forward (AF) cooperative network with the help of multiple relay nodes, a relay selection algorithm with simplified precoder is proposed for the two-hop relay channels. This new algorithm based on the approximate received signal-noise rate (SNR), which chooses only one relay with the maximal received SNR gain to assist in transmission, can significantly reduce the required system consumption, achieve excellent bit-error-rate (BER) and average throughput, and maintain full diversity order. Simulation results demonstrate that the performance of the proposed scheme with a low complexity approaches to the optimal iteration method. And for practical situation with distance attenuation factor, the performance gain of our scheme is also in evident.

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Authors and Affiliations

  1. School of Information Science and Engineering, Southeast University, Nanjing, China

    Yujie Han, Youhua Fu & Luxi Yang

Authors
  1. Yujie Han
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  2. Youhua Fu
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  3. Luxi Yang
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Corresponding author

Correspondence to Yujie Han.

Additional information

This work was supported by the National Basic Research Program of China under Grant 2007CB310603, the National Natural Science Foundation of China under Grant 60902012 and 60702029, the National Science and Technology Major Project of China under Grant 2009ZX03003-004, the Ph.D. Programs Foundation of Ministry of Education of China under Grant 20090092120013.

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Han, Y., Fu, Y. & Yang, L. Relay Selection Algorithm with Simplified Precoding for MIMO Multiple Relay Channels. Wireless Pers Commun 62, 747–758 (2012). https://doi.org/10.1007/s11277-010-0091-8

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  • DOI: https://doi.org/10.1007/s11277-010-0091-8

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