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This document discusses the state-of-the-art techniques and research challenges related to handovers in mobile WiMAX networks. It covers key phases of hard handovers, including the acquisition phase, actual handover steps, and the authorization and registration process. The study highlights issues associated with layer 2 and layer 3 handovers, emphasizing the need for efficient base station synchronization, range adjustments, and the selection of new ABS. It also identifies various research problems and potential solutions, paving the way for improved mobile network performance.
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David Lynn Presents… Handover in mobile wimax networks: the state of art and research issues Sayan Kumar Ray Krzysztof Pawlikowski HarshaSirisena
Hard Handovers • Acquisition Phase • BS advertises the Network Topology • Scanning of advertised neighboring BSs and MS • Ranging and Optional Association Activates • Actual Handover Phase • Deciding on the TBS • Initiating the Handover • TBS synchronization and Ranging Process • Authorization and Registration Phase
Fast base station switching handovers • Diversity Set Updating • Updating and Selecting the new ABS • Handover Occurrence
Research issues: layer 2 Handover issues http://www.integration1.com.au/NetSecScanInfo.htm http://cnx.org/content/m13596/latest/ http://directorblue.blogspot.com/2008/12/importance-of-load-distribution.html http://chaka4612.blogspot.com/2011/11/family-time-and-ping-pong.html http://www.winnersedgetrading.com/forex-signal-gbpusd/ http://science.howstuffworks.com/apollo-spacecraft7.htm http://www.playslots.org.uk/
Research issues: layer 3 Handover issues http://applewallpapers.net/view/mac_os_wallpaper-1440x900.html http://capitalmarketalerts.com/living-with-no-growth/slow-road-sign-378px/ http://anchorsholme.org.uk/2012/01/2580/hand-over-keys/
Research issues: layer 2&3 Handover Issues & solutions http://news.softpedia.com/newsImage/Imprecise-Chips-Could-Revolutionize-Electronics-2.jpg/ http://hackbymak.blogspot.com/2012/02/get-notification-when-any-program.html http://dna-of-humancapital.blogspot.com/2011/03/end-of-managementlong-live-management.html http://www.nowpublic.com/environment/massive-river-flow-through-arctic