Research on Spectrum Hole Distribution for Cognitive Radio Systems

Author

Wen, Zhigang ; Fan, C. ; Liu, J. ; Zhang, X. ; Zou, J. ; Wu, Y.

Author_Institution

Sch. of Electron. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2010

fDate

23-25 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

In this paper, we at first studied the distribution of the interval between two consecutive packets (ITCP) for two-user networks. We then extend our interest to multi-user networks by using fitting curves to approximate the distribution of the ITCP. Next, based on the above observation, we present a new spectrum hole prediction model for the IEEE 802.11 standards based cognitive radio (CR) local areas networks. The effectiveness of the presented prediction model was thereafter validated by using NS-2 and MATLAB simulation programs. Simulation results showed that when adopting the proposed spectrum hole prediction model, CR systems can largely reduce the number of collisions with licensed users.

Keywords

cognitive radio; curve fitting; wireless LAN; IEEE 802.11 standards; MATLAB simulation programs; NS-2 simulation programs; cognitive radio systems; consecutive packets; fitting curves; local areas networks; multiuser networks; spectrum hole prediction model; two-user networks; Autoregressive processes; Chromium; Cognitive radio; Mathematical model; Predictive models; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3708-5

Electronic_ISBN

978-1-4244-3709-2

Type

conf

DOI

10.1109/WICOM.2010.5601091

Filename

5601091