Vertical Handover Decision Processes for Fourth Generation Heterogeneous Wireless Networks

Authors

  • Mahmood Adnan Universiti Malaysia Sarawak, Kota Samarahan, Kuching, Sarawak, 94300, Malaysia
  • Hushairi Zen Faculty of Engineering, Universiti Malaysia Sarawak Kota Samarahan, 94300, Sarawak
  • Al - Khalid Othman Faculty of Engineering, Universiti Malaysia Sarawak Kota Samarahan, 94300, Sarawak

Keywords:

Wireless / Heterogeneous Wireless Networks, 4G, Vertical Handovers, Vertical Handover Decision Algorithms

Abstract

The increased growth in consumer demand for seamless access to communication services anywhere and anytime is inevitably driving an accelerated technological development towards the integration of an assortment of wireless network technologies – nowadays referred to as ‘Fourth Generation (4G) Wireless Systems’. In a typical 4G networking scenario, mobile terminals (MTs) with multiple interfaces are able to choose the most pertinent access links among the accessible substitutes [i.e. IEEE 802.11 WLANs, IEEE 802.16 WiMAX, satellite systems, bluetooth, etc. in addition to the traditional cellular telephony networks]. Thus to achieve seamless mobility and the requisite Quality of Service (QoS) in such a diverse environment, efficient ‘Vertical Handover Decision (VHD)’ algorithms needs to be designed in order to avert any degradation of services, reduction in throughput, increase in blocking probability and packet loss caused due to the unnecessary handovers, handover failures and connection breakdowns. This paper intends to present a comprehensive survey of VHD algorithms designed to satisfy these requirements. To offer a systematic comparison and thus to assess the tradeoffs between their complexity of implementation and efficiency, our study has categorized algorithms into various groups based on the main handover decision criterion used. The survey revealed that the currently proposed VHD algorithms either lacked a comprehensive consideration of several network parameters or studies’ reporting these problems lacks sufficient detail for implementation.

Author Biography

Mahmood Adnan, Universiti Malaysia Sarawak, Kota Samarahan, Kuching, Sarawak, 94300, Malaysia

Mr. Mahmood Adnan is currently pursuing research at the Faculty of Engineering, Universiti Malaysia Sarawak. The research areas include Wireless Communication and 4G Heterogeneous Wireless Networks.

References

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Published

2013-12-21

How to Cite

Adnan, M., Zen, H., & Othman, A. .-. K. (2013). Vertical Handover Decision Processes for Fourth Generation Heterogeneous Wireless Networks. Asian Journal of Applied Sciences, 1(5). Retrieved from https://www.ajouronline.com/index.php/AJAS/article/view/713

Issue

Vol. 1 No. 5 (2013): December 2013

Section

Articles

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