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SNR Maximization and Distributed Beamforming in Multiuser Multi-Relay Networks

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2 Author(s)
Nguyen, D.H.N. ; Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK, Canada ; Nguyen, H.H.

This paper studies optimal distributed beamforming designs to jointly maximize the signal-to-noise (SNR) margin in a multiuser multi-relay network. Considered are optimization problems with two different types of power constraints: sum relay power constraint and per-relay power constraints. Although these two problems can be readily solved by the bisection method via a sequence of second-order conic feasibility programs, we propose simple and fast converging iterative algorithms to directly solve the two optimization problems under consideration.

Published in:

Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE

Date of Conference:

Nov. 30 2009-Dec. 4 2009