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Minimization of Call Blocking Probability using Mobile Node velocity

Author(s): Suman Kumar Sikdar | Uttam Kumar Kundu | Debabrata Sarddar (Astt Professor)

Journal: International Journal of Advanced Computer Sciences and Applications
ISSN 2156-5570

Volume: 3;
Issue: 11;
Start page: 172;
Date: 2012;
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Keywords: component | Next Generation Wireless Systems (NGWS) | Handoff | BS (Base Station) | MN (Mobile Node) | RSS (Received signal strength) | IEEE802.11

Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks (WLAN), handoff has become a burning issue. A mobile Node (MN) 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 article, we propose a received signal strength measurement based handoff technique to improve handoff probability. By calculating the speed of MN (Mobile Node) and signaling delay information we try to take the right decision of handoff initiation time. Our theoretical analysis and simulation results show that by taking the proper decision for handoff we can effectively reduce false handoff initiation probability and unnecessary traffic load causing packet loss and call blocking
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