Title :
Power allocation for cooperative relaying in wireless networks
Author :
Deng, Xinmin ; Haimovich, Alexander M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
Power allocation strategies are developed for amplify-and-forward cooperative relaying networks in fading channels. The average signal-to-noise ratio (SNR) and outage performances are optimized in some sense by maximizing the sum and product, respectively, of the average SNR of the direct link and an upper bound on the SNR of the relay link. The power allocation strategies require knowledge of only the mean strengths of the channels.
Keywords :
channel allocation; cooperative systems; diversity reception; fading channels; probability; amplify-and-forward network; average SNR; cooperative relay; fading channel; outage probability; power allocation; signal-to-noise ratio; wireless network; Additive noise; Decoding; Digital relays; Fading; Intelligent networks; Performance gain; Signal to noise ratio; Transmitters; Upper bound; Wireless networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.11012
