Title :
Power Allocation Strategies across N Orthogonal Channels at Both Source and Relay
Author :
Ko, Youngwook ; Ardakani, Masoud ; Vorobyov, Sergiy A.
Author_Institution :
Dept. of Electron. Eng., Univ. of Surrey, Guildford, UK
fDate :
6/1/2012 12:00:00 AM
Abstract :
A wireless relay network with one source, one relay and one destination is considered, where nodes communicate via N orthogonal channels. We develop optimal power allocation strategies at both the source and relay for maximizing the overall source-destination capacity under individual power constraints at the source and relay. Some properties of the optimal solution are studied.
Keywords :
radio networks; relays; wireless channels; N orthogonal channels; individual power constraints; power allocation strategies; source-destination; wireless relay network; Ad hoc networks; Complexity theory; Optimization; Relays; Resource management; Signal to noise ratio; Wireless communication; Optimal power allocation; amplify-and-forward; orthogonal channels; sum capacity;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2012.040212.100193
