Title :
Optimal power allocation of a single transmitter-multiple receivers channel in a cognitive sensor network
Author :
Ayala Solares, Jose Roberto ; Rezki, Zouheir ; Alouini, Mohamed-Slim
Author_Institution :
Math. & Comput. Sci. & Eng., King Abdullah Univ. of Sci. & Technol., Thuwal, Saudi Arabia
Abstract :
The optimal transmit power of a wireless sensor network with one transmitter and multiple receivers in a cognitive radio environment while satisfying independent peak, independent average, sum of peak and sum of average transmission rate constraints is derived. A suboptimal scheme is proposed to overcome the frequency of outages for the independent peak transmission rate constraint. In all cases, numerical results are provided for Rayleigh fading channels.
Keywords :
Rayleigh channels; cognitive radio; radio receivers; radio transmitters; wireless sensor networks; Rayleigh fading channels; cognitive radio; cognitive sensor network; independent average; independent peak; optimal power allocation; optimal transmit power; single transmitter-multiple receivers channel; sum of average transmission rate constraints; sum of peak transmission rate constraints; wireless sensor network; Cognitive radio; Fading; Radio transmitters; Receivers; Resource management; Tin; Wireless sensor networks; Wireless sensor network; cognitive radio; interference constraint; optimal power; rate constraint;
Conference_Titel :
Wireless Communications in Unusual and Confined Areas (ICWCUCA), 2012 International Conference on
Conference_Location :
Clermont Ferrand
Print_ISBN :
978-1-4673-1290-5
Electronic_ISBN :
978-1-4673-1289-9
DOI :
10.1109/ICWCUCA.2012.6402479
