International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 27 - Number 1 |
Year of Publication: 2011 |
Authors: Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Mandovi Mukherjee, Utpal Biswas, Mrinal Kanti Naskar |
10.5120/3264-4407 |
Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Mandovi Mukherjee, Utpal Biswas, Mrinal Kanti Naskar . Security of Handoff Latency by Prescanning with help of Neighbourgraph. International Journal of Computer Applications. 27, 1 ( August 2011), 41-46. DOI=10.5120/3264-4407
Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks (WLAN), handoff has become a burning issue. A mobile station (MS) requires handoff when it travels out of the coverage area of its current access point (AP) and tries to associate with another AP. But handoff delays provide a serious barrier for such services to be made available to mobile platforms. Throughout the last few years there has been plenty of research aimed towards reducing the handoff delay incurred in the various levels of wireless communication. In this paper, based on Neighbor Graph Cache (NGC), we introduce a pre-scanning mechanism in which an STA starts scanning before it needs actual handoff. The simulation results show that the proposed method reduces the handoff latency effectively.