Location-aware cognitive sensing for maximizing network capacity

Author

Jia, Peng ; Vu, Mai ; Le-Ngoc, Tho

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada

fYear

2009

fDate

1-4 Nov. 2009

Firstpage

78

Lastpage

82

Abstract

We develop a closed-form optimal spectrum sensing threshold to maximize a cognitive network weighted sum capacity. In an one primary user and one cognitive user network, spatial location side information is used by the cognitive transmitter to adjust its sensing threshold accordingly. Numerical results show that, compared to another threshold based on minimizing a Bayesian risk function, the proposed threshold improves the network sum capacity significantly. The benefit of spatial location side information is also revealed in the sum capacity.

Keywords

Bayes methods; channel capacity; cognitive radio; mobile computing; Bayesian risk function; closed-form optimal spectrum sensing threshold; cognitive network weighted sum capacity; location-aware cognitive sensing; network capacity; Bandwidth; Bayesian methods; Cognition; Cognitive radio; Communication systems; Costs; Interference; Radio spectrum management; Radio transmitters; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-5825-7

Type

conf

DOI

10.1109/ACSSC.2009.5470166

Filename

5470166