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A Fast Handoff Mechanism for Wireless LAN

By Sushama Rani Dutta and Rohit Vaid


Wireless Local Area Network (WLAN) is the current technology which provides services with high bandwidth and low latency. It is one of the reasons for which it is preferred over several other wireless data networks. However, there are a few problems associated with it. Handoff is one such problem. Handoff process takes place when a mobile terminal moves from one access point to another. Existing methods require around 400ms for the handoff process, which causes serious problems for multimedia applications like audio and video streaming and real time applications like Voice over IP (VoIP). We use the concept of Triangulation which is used by Global Positioning System (GPS). It helps in efficiently predicting the next most likely access point with-out actual handoff, thereby almost eliminating discovery delay which poses almost 50 to 80 % of the delay

Year: 2014
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