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Optimal multiple-relay selection in dual-hop amplify-and-forward cooperative networks

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1 Author(s)
Xiaohua Li ; Dept. of Electr. & Comput. Eng., State Univ. of New York at Binghamton, Binghamton, NY, USA

Algorithms and rules for the optimal selection of multiple amplify-and-forward relays are developed in a dual-hop cooperative network. A linear fractional programming approach is first formulated. Then, a surprisingly simple water-filling-like closed-form solution is derived, which shows many interesting properties of the optimal relay selection.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 12 )