期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2015
卷号：3
期号：5
DOI：10.15680/ijircce.2015.0305099
出版社：S&S Publications
摘要：Integration of heterogeneous wireless technologies is cardinal area of research for next generationmobile networks. Considering the heterogeneous environment, Universal Mobile Telecommunication System (UMTS)of cellular technology and Wireless Local Area Networks (WLAN) (over IEEE 802.11) are the most promisingnetworks which can be integrated to facilitate the seamless communication. However, integration of UMTS andWLAN involves some challenging issues such as mobility management and handoff decision making. Handoffdecision making depends on various metrics such as available bandwidth, jitter, delay, energy, cost, etc. Moreover,handoffs need to have seamless connectivity while maintaining the acceptable quality of service in heterogeneousnetwork. Various approaches have been proposed to address handoff decision making problem. This paper proposes anovel fuzzy rule based handoff decision making algorithm for meeting the requirements of heterogeneous networks. Itconsiders WLAN and UMTS as two integrated network entities. The algorithm allows the Mobile Terminal (MT) toalways get connected to the most energy efficient and cost-effective network evaluated on the basis of various handoffmetrics such as energy, traffic and cost.
