Joint design of source power allocation and relay beamforming in multi-user wireless networks

This paper presents joint design of source power allocation and relay beamforming for multi-user multi-relay wireless networks. The problem is formulated as maximization of the worst signal-to-inference-plus-noise ratio (SINR) among users subject to various power constraints. An equivalent d.c. (dif...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:2012 6th International Conference on Signal Processing and Communication Systems (ICSPCS) s. 1 - 4
Hlavní autori: Rashid, Umar, Kha, H. H., Tuan, H.D., Nguyen, H.H.
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.12.2012
Predmet:
amplify-andforward
Array signal processing
beamforming
d.c. programming
Interference
Iterative methods
Optimization methods
power allocation
Protocols
relay networks
Relays
Resource management
Signal to noise ratio
Vectors
Wireless networks
ISBN:1467323926, 9781467323925
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:This paper presents joint design of source power allocation and relay beamforming for multi-user multi-relay wireless networks. The problem is formulated as maximization of the worst signal-to-inference-plus-noise ratio (SINR) among users subject to various power constraints. An equivalent d.c. (difference of two convex functions) programming based method is then used to develop an iterative algorithm with low computational complexity to obtain the optimal solution. Simulation results demonstrate that our optimal solutions of the joint optimization problem significantly outperform the solution obtained by separate designs of source power and relay beamforming.
ISBN:1467323926
9781467323925
DOI:10.1109/ICSPCS.2012.6507979