Smart handover based on fuzzy logic trend in IEEE802.11 mobile IPv6 networks

TL;DR

This paper proposes a fuzzy logic-based handover algorithm for IEEE802.11 mobile IPv6 networks that reduces unnecessary handovers, accounts for user mobility, and minimizes false alarms by monitoring parameter trends.

Contribution

It introduces a novel fuzzy logic approach that incorporates RSSI, speed, and distance, with trend monitoring, to improve handover decisions in mobile IPv6 networks.

Findings

Reduced unnecessary handovers in simulations

Improved communication quality through trend-based decision making

Effective handling of parameter fluctuations to prevent false alarms

Abstract

A properly designed handoff algorithm is essential in reducing the connection quality deterioration when a mobile node moves across the cell boundaries. Therefore, to improve communication quality, we identified three goals in our paper. The first goal is to minimize unnecessary handovers and increase communication quality by reducing misrepresentations of RSSI readings due to multipath and shadow effect with the use of additional parameters. The second goal is to control the handover decisions depending on the users' mobility by utilizing location factors as one of the input parameters in a fuzzy logic handover algorithm. The third goal is to minimize false handover alarms caused by sudden fluctuations of parameters by monitoring the trend of fuzzy logic outputs for a period of time before making handover decision. In this paper, we use RSSI, speed and distance as the input decision criteria of a handover trigger algorithm by means of fuzzy logic. The fuzzy logic output trend is monitored for a period of time before handover is triggered. Finally, through simulations, we show the effectiveness of the proposed handover algorithm in achieving better communication quality.