Title: Vertical handover decision algorithm in heterogeneous wireless networks

Authors: Wafa Benaatou; Adnane Latif; Vicent Pla

Addresses: TIM, National School of Applied Sciences, Cadi Ayyad University, Marrakech, Morocco ' TIM, National School of Applied Sciences, Cadi Ayyad University, Marrakech, Morocco ' ITACA, Universitat Politècnica de València, Camino de Vera s/n, 46022, València, Spain

Abstract: With the recent progress in the area of cellular communication the issue of inter cells handover without dropping an ongoing connection with the base station has arisen. In this paper, the focus is on the performance of vertical handover. Various proposed interconnection architectures for vertical handover in heterogeneous networks were studied. Two different algorithms to make the decision on when and to which network perform a handover were considered. In the first of them the decision is based on the received signal strength (RSS). In the second one a fuzzy logic system that uses RSS, bandwidth, battery power and packet loss as the input parameters is proposed. The simulation results show that the algorithm based on fuzzy logic leads to a reduction of the number of handovers and a minimisation of the power consumption as compared to the first algorithm used here and the existing algorithms.

Keywords: vertical handover; wireless local area network; WLAN; WIMAX; UMTS; LTE; LTE-A; received signal strength; RSS; heterogeneous networks; fuzzy logic.

DOI: 10.1504/IJIPT.2017.088914

International Journal of Internet Protocol Technology, 2017 Vol.10 No.4, pp.197 - 213

Received: 31 Aug 2016
Accepted: 29 May 2017
Published online: 02 Jan 2018 *

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