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Document Type:Latin Dissertation
Language of Document:English
Record Number:52936
Doc. No:TL22890
Call number:‭1533932‬
Main Entry:Nayef Fawaz Mendahawi
Title & Author:Handoff Performance for Voice over IP in WiMAX NetworksNayef Fawaz Mendahawi
College:King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date:2009
Degree:M.S.
student score:2009
Page No:85
Abstract:High data rate, mobility, QoS, vendor independence and interoperability are very important characteristics for the next generation of wireless communication networks. For example mobility support within a homogenous network and between networks of different technologies is a must to have feature for the next generation of wireless networks. The standardization allows vendor independence and interoperability. A technology which was developed to fulfill these characteristics and standardized by IEEE is 802.16, also referred to as WiMAX. The WiMAX is the latest technology aims to have the above characteristics with low deployment costs. WiMAX architecture aims to have high data rates, QoS, long range and low deployment costs to a wireless access technology. In the first phase the standard (802.16d) was released to support fixed terminal but the second release to support mobility. Different releases of the standards specify media access control (MAC) layer and physical (PHY) layer of the WiMAX technology. [14,35]. WiMAX supports different scenarios of handoff such as hard handover, soft handover and fast base station switching [6,8,14]. However, only certain handovers are possible for certain frequency reuse scenario. This thesis is focused on the technology and architecture of WiMAX; more specifically, on its mobile capabilities (handover delay time). To illustrate, there are many types of handover, however this thesis focuses on hard handover with various application such as FTP and VoIP. Results demonstrate there are differences in HO time delay by means of different schedule services. Nonetheless, simulator confirms the WiMAX HO has long time delay in comparison to others technology such as GSM, UMTS and LTE. Finally, the thesis proposes idea towards developing the HO capabilities.
Subject:Applied sciences; Computer Engineering; 0464:Computer Engineering
Added Entry:T. A. Sheltami, Basem
Added Entry:King Fahd University of Petroleum and Minerals (Saudi Arabia)