In WiMAX/IEEE 802.16 with mobility support, the network entry procedure for a mobile station involves several steps including the scanning for an available channel and performing initial ranging in order to determine power and timing offset requirements. These steps are performed by a mobile station at start up or when about to perform a handover and must be done promptly in order to reduce delays in network access or possible dropped connections. We propose strategies that a mobile station can use to reduce the time required for scanning and ranging operations while attempting to establish network connectivity or perform a handover between neighbouring base stations. We model and simulate an area of WiMAX coverage using real-world mobility trace data and show that there are strategies that reduce the time required for scanning and ranging operations significantly. Copyright

Additional Metadata
Keywords Handover, IEEE 802.16, Mobility, Ranging, Scanning, WiMAX
Persistent URL dx.doi.org/10.1504/IJCNDS.2008.021077
Journal International Journal of Communication Networks and Distributed Systems
Citation
Boone, P. (Paul), Barbeau, M, & Kranakis, E. (2008). Strategies for fast scanning, ranging and handovers in WiMAX/802.16. International Journal of Communication Networks and Distributed Systems, 1(4-6), 414–432. doi:10.1504/IJCNDS.2008.021077