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

Uloženo v:
Podrobná bibliografie
Vydáno v:2012 6th International Conference on Signal Processing and Communication Systems (ICSPCS) s. 1 - 4
Hlavní autoři: Rashid, Umar, Kha, H. H., Tuan, H.D., Nguyen, H.H.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.12.2012
Témata:
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 přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
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