Secondary transmission power of cognitive radios for dynamic spectrum access

Author

Li, Xiaohua ; Chen, Jinying ; Hwu, Juite

Author_Institution

Dept. of ECE, State Univ. of New York at Binghamton, Binghamton, NY

fYear

2008

fDate

25-27 Aug. 2008

Firstpage

1211

Lastpage

1215

Abstract

In this paper, we analyze the allowable transmission power of cognitive radios when used as secondary users in a dynamic spectrum access network. Closed-form upper and lower bounds are derived, while accurate solutions to transmission power are available through numerical evaluation. The transmission power depends on the distance between primary and secondary transmitters as well as the number of randomly distributed primary receivers. The results show that at the cost of a small SINR redundancy of primary users, cognitive radios can use a significant level of transmission power in certain conditions.

Keywords

cognitive radio; radio access networks; redundancy; SINR redundancy; cognitive radios; dynamic spectrum access; secondary transmission power; Base stations; Cognitive radio; Degradation; Educational institutions; Information analysis; Interference; Power engineering and energy; Power system modeling; Radio transmitters; Signal to noise ratio; cognitive radio; dynamic spectrum access; signal to interference and noise ratio (SINR); transmission power;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-2373-6

Electronic_ISBN

978-1-4244-2374-3

Type

conf

DOI

10.1109/CHINACOM.2008.4685244

Filename

4685244