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Reseach Article

Fast Handoff Implementation by using Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm

by Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Sreya Mallik, Sreya Mallik, Mrinal Kanti Naskar
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 27 - Number 6
Year of Publication: 2011
Authors: Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Sreya Mallik, Sreya Mallik, Mrinal Kanti Naskar
10.5120/3308-4534

Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Sreya Mallik, Sreya Mallik, Mrinal Kanti Naskar . Fast Handoff Implementation by using Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm. International Journal of Computer Applications. 27, 6 ( August 2011), 1-9. DOI=10.5120/3308-4534

@article{ 10.5120/3308-4534,
author = { Debabrata Sarddar, Shubhajeet Chatterjee, Pulak Mazumder, Arnab Raha, Sreya Mallik, Sreya Mallik, Mrinal Kanti Naskar },
title = { Fast Handoff Implementation by using Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm },
journal = { International Journal of Computer Applications },
issue_date = { August 2011 },
volume = { 27 },
number = { 6 },
month = { August },
year = { 2011 },
issn = { 0975-8887 },
pages = { 1-9 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume27/number6/3308-4534/ },
doi = { 10.5120/3308-4534 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:13:04.276850+05:30
%A Debabrata Sarddar
%A Shubhajeet Chatterjee
%A Pulak Mazumder
%A Arnab Raha
%A Sreya Mallik
%A Sreya Mallik
%A Mrinal Kanti Naskar
%T Fast Handoff Implementation by using Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm
%J International Journal of Computer Applications
%@ 0975-8887
%V 27
%N 6
%P 1-9
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

IEEE 802.11b networks are becoming more ubiquitous. While roaming through access points, a Mobile Station is often required to perform a link layer handover. This mechanism causes connection losses and breaks in time-sensitive communication, especially if a network layer handover follows the link layer handover. In this paper, we propose to reduce handoff latency for IEEE 802.11 wireless networks with Neighbor Graphs (NG) pre-scanning mechanisms and using a GPS based server which predetermines the next probable AP using three formulated geometry based mathematical techniques. IEEE 802.11 uses 11 channels of which the channels 1, 6 and 11 do not mutually overlap. As they are non-overlapping, the channels are expected to have a lower carrier-to-interference ratio (CI) compared to the other channels present under the same base station, which increases the channel’s availability during handoff. When handoff criterion have been met, we design an algorithm to first determine the Access Point (AP) under whose coverage area the Mobile Station (MS) would enter, then scanning the channels 1, 6 and 11, if present under the next Access Point (AP), to reduce the scanning delay. We also introduce pre-authentication mechanism, which will effectively reduce the message processing delay.

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Index Terms

Computer Science
Information Sciences

Keywords

Handoff Neighbor Graph Access point (AP) Selective channel scanning mechanism Carrier- to-Interference (CI) Ratio Global Position Systems (GPS)