Effects of Co-channel Interference in WLAN and Cognitive Radio Based Approach to Minimize It

Author

Tiwary, Prabhat Kumar ; Maskey, Niwas ; Khakurel, Suman ; Sachdeva, Gitanjali

Author_Institution

Dept. of Electron. & Commun. (B.Tech IV), NIT Surat, Surat, India

fYear

2010

fDate

16-17 Oct. 2010

Firstpage

158

Lastpage

160

Abstract

WLAN uses frequency spectrum for providing wireless access to nomadic nodes which is in fact a very scarce resource. One common issue in deployment of a multi-channel multi-AP wireless network is interference. One of the reasons why theoretical throughput (54 Mbps for 802.11g) can´t be achieved is co-channel interference. In this paper, the effect of co-channel interference on data throughput has been studied in a practical multiple AP (access point) scenario. Interference can be minimized by adjusting the transmission power. This paper also provides an algorithm for transmission power adjustment of APs by using the concept of cognitive radio, which eventually helps in minimizing co-channel interference.

Keywords

cochannel interference; cognitive radio; radio access networks; radio spectrum management; wireless LAN; WLAN; access point scenario; co-channel interference; cognitive radio; frequency spectrum; multichannel multiAP wireless network; nomadic nodes; transmission power adjustment; wireless access; Cognitive radio; Interchannel interference; Throughput; Wireless LAN; Wireless networks; Co-channel interference; Cognitive radio; IEEE 802.11;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Recent Technologies in Communication and Computing (ARTCom), 2010 International Conference on

Conference_Location

Kottayam

Print_ISBN

978-1-4244-8093-7

Electronic_ISBN

978-0-7695-4201-0

Type

conf

DOI

10.1109/ARTCom.2010.57

Filename

5656936