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Performance Analysis of Channel Allocation Schemes in WiMAX
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years))Student thesis
Abstract [en]

Today many cellular networks are working in parallel. For instance Global System for Mobile Communication (GSM), Universal Mobile Telecommunication System (UMTS) and Worldwide Interoperability for Microwave Access (WiMAX) etc. All of these technologies are based on cellular networks. Cellular networks are comprised of cells. Cells in the cellular network are allocated frequency channels from the available bandwidth. These frequency channels are responsible for communication between the mobile users. Number of available channels in a cell is limited and due to this limitation if traffic in the cell is high users may face call terminations and may be blocked by the cell completely. GSM is the most popular cellular network yet used in almost 200 countries of the world [29]. Due to lack of high data rates GSM is not able to support wireless broadband users. WiMAX is currently under development and is a new technology in 3G systems (near to 4G). It has support for wireless broadband users, both fixed and mobile. For fixed users (Mainly Office and Home) disconnectivity in the connection is intolerable. Such users are needed to be allocated permanent channels, so they never face disconnectivity due to unavailability of channels in the cell. For this purpose in our thesis work we have performed analysis on channels allocation schemes namely Non Prioritized Scheme (NPS) and Reserved Channel Scheme (RCS) in WiMAX scenario, in context of permanent channel allocation. These schemes were previously used for those cellular networks which had no need for permanent channel allocation in the cell. We have performed simulations on these schemes in MATLAB and have compared their results in terms of Blocking Probability (Pb), Probability of handover failure (Ph), Probability of forced termination (Pft) and Probability of not completed calls (Pnc). Here call represents any kind of job (Mobile or Fixed).

Place, publisher, year, edition, pages
2009. , 102 p.
Keyword [en]
WiMAX, OFDMA, RCS, NPS, DCA, FCA, Handovers
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:bth-2483Local ID: oai:bth.se:arkivex191FEEFADAA24104C1257682004A0BB1OAI: oai:DiVA.org:bth-2483DiVA: diva2:829762
Uppsok
Technology
Supervisors
Available from: 2015-04-22 Created: 2009-12-04 Last updated: 2015-06-30Bibliographically approved

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