Title :
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
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;
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
DOI :
10.1109/ARTCom.2010.57
