Strategies for fast scanning, ranging and handovers in WiMAX/802.16

Boone, Paul; Barbeau, Michel; Kranakis, Evangelos

doi:10.1504/ijcnds.2008.021077

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…We show a reduction in the time required for the scanning operation over our previous work [6]. Our strategies require no additional network support and only limited memory and computational resources of the MS.…”

Section: A Results Of the Papermentioning

confidence: 78%

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Using time-of-day and location-based mobility profiles to improve scanning during handovers

Boone

Barbeau

Kranakis

2010

2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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Abstract-In WiMAX/IEEE 802.16 with mobility support, scanning for an available channel by a mobile station, especially during a handover, must be done promptly in order to reduce delays in network access. We have shown previously that mobile stations can reduce scanning times by maintaining a most probable list of frequencies in use. In this paper, we extend this idea to further capture the mobility patterns of users. By using time-of-day and location-based mobility profiles a mobile station improves scanning performance during handovers. We show this improvement by modeling and simulating an area of WiMAX coverage with various mobility patterns and real-world mobility traces.

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Section: A Results Of the Papermentioning

confidence: 78%

“…In our previous work [6], we introduced frequency scanning strategies used to reduce the time a MS spends finding an available channel of a WiMAX/802.16 BS. These basic strategies are now implemented within user mobility profiles.…”

Section: Introductionmentioning

confidence: 99%

Using time-of-day and location-based mobility profiles to improve scanning during handovers

Boone

Barbeau

Kranakis

2010

2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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“…The channel bandwidth of a BS is 40 Mbps. The simulation parameters of service‐classes are summarized from the traffic models used in References 2–5, 22. Several useful parameters for the simulations are given in Table I.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Then, the MS can achieve fast selection of the target BS. In Boone et al 4, an MS selected the candidate target BS from the handoff histories. Moreover, Rouil et al 5 proposed an Adaptive Channel Scan (ACS) algorithm for IEEE 802.16e by estimating the duration and frequency of channel scanning and allocating scanning intervals for MSs.…”

Section: Introductionmentioning

confidence: 99%

Adaptive load‐balancing association handoff approach for increasing utilization and improving GoS in mobile WiMAX networks

Hwang

Chang

Lin

et al. 2011

Wireless Communications

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The IEEE 802.16e standard is thus proposed for supporting high data rate and dynamic mobility in WiMAX. IEEE 802.16e specifies the association handoff mechanism in the MAC layer, i.e., providing contention-free-based initial ranging, and thus mobile stations can perform the initial ranging early during the handoff period. An MS executing the association handoff during a scan duration is disallowed to send/receive any packets to/from the serving BS. IEEE 802.16e suffers from not determining a precision scan duration period because of losing the transmission opportunity or the response status of the received ranging response (RNG-RSP) message. Although the MS can set a longer scan duration to complete the initial ranging procedure, it significantly degrades handoff delay and delay jitter of real-time service flows. In addition, most handoff studies seldom considered balancing traffic load among neighbor base stations (BSs). This paper thus proposes an efficient Adaptive Load-balancing Association handoff approach (ALA) consisting of two phases: (1) the Adaptive Association Handoff phase (AAH) and (2) the Predictive Direction-based Load Balancing phase (PDLB), to overcome above mentioned problems. AAH proposes an adaptive re-association mechanism to reduce lost synchronizations, and thus improve the grade of service. PDLB adopts the Polynomial Regression-based RSS prediction algorithm to accurately predict the moving direction of mobile nodes. Numerical results demonstrate that ALA significantly outperform IEEE 802.16e and others in average handoff delay, number of handoffs, dropping probability, GoS, network utilization, and number of lost synchronizations. in 2008, where he joined the department in 2002. His research interests include resource management and analysis in WiMAX and WiFi, seamless vertical handoff in heterogeneous wireless networks, cross layerbased mechanism, adaptive-based wireless TCP congestion control, VANET and telematics communications, mobile computing in wireless sensor networks, time and frequency 2-D spreading in next generation cellular communications, and QoS-based wireless networking.

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QoS Simulation and An Enhanced Solution of Cell Selection for WiMAX Network

Wang

et al. 2010

WiMAX Security and Quality of Service

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Strategies for fast scanning, ranging and handovers in WiMAX/802.16

Cited by 11 publications

References 7 publications

Using time-of-day and location-based mobility profiles to improve scanning during handovers

Using time-of-day and location-based mobility profiles to improve scanning during handovers

Adaptive load‐balancing association handoff approach for increasing utilization and improving GoS in mobile WiMAX networks

QoS Simulation and An Enhanced Solution of Cell Selection for WiMAX Network

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