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

fYear

2012

fDate

28-30 Aug. 2012

Firstpage

1

Lastpage

6

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICWCUCA.2012.6402479

Filename

6402479