Paper Info
Title
Transmitter-receiver collaborative-relay beamforming by simulated annealing
Abstract
This paper considers the collaborative-relay beamforming (CRBF) design for a three-hop multi-relay network with one transmitter, one receiver and two clusters of relay nodes. It is assumed that, all the relay nodes work synchronously with perfect channel state information (CSI). Optimization on the relay weights is carried out to improve the signal-to-noise ratio (SNR) at the receiver under aggregate power constraints of each cluster. Two different design approaches are proposed in this study. In the first approach, a simulated annealing (SA) based CRBF method is presented, and a stochastic global optimum is obtained. However, the SA algorithm is quite computational demanding. In order to speed up the heuristic searching process, a suboptimal but efficient closed-form solution is provided in the second approach, which helps to generate the initial state of the SA algorithm. Simulation results show that both approaches outperform the fixed power allocation strategy.
Year
DOI
Venue
2011
10.1007/978-3-642-21524-7_50
ICSI
Keywords
Field
DocType
perfect channel state information,different design approach,simulated annealing,fixed power allocation strategy,aggregate power constraint,nodes work synchronously,initial state,crbf method,efficient closed-form solution,sa algorithm,transmitter-receiver collaborative-relay,collaborative-relay beamforming
Simulated annealing,Beamforming,Transmitter,Cluster (physics),Mathematical optimization,Heuristic,Computer science,Relay,Speedup,Channel state information
Conference
Volume
ISSN
Citations 
6729
0302-9743
0
PageRank 
References 
Authors
0.34
6
5
Name
Order
Citations
PageRank
Dong Zheng1446.80
Ju Liu239652.06
Lei Chen330.76
Yuxi Liu48613.46
Weidong Guo56810.09