The Analysis of Scanning Time in IEEE802.16m's Handover Procedure

Ulvan, Ardian; Bestak, Robert

doi:10.1109/iwssip.2009.5367702

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The minimum achievable handover delay according to Wang et al [11] is approximately 60 ms while fast ranging together with pre-registration are considered. The analogical evaluation is described in Reference [12] as well. It also provides further optimisation based on the fast ranging and pre-registration.…”

Section: Related Workmentioning

confidence: 99%

Fast predicted handover in IEEE 802.16 networks

Bečvář

Mach

2010

Trans Emerging Tel Tech

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The handover procedure can have a negative impact on the quality of service due to the short break in the connection. This paper proposes a modification of the hard handover procedure to enable reduction of the handover interruption time by exploiting the results of a handover prediction. The prediction of handover allows performing a part of handover procedure in advance to the interruption of a connection caused by the handover. The simulation results show that the proposed handover procedure fulfils requirements on the handover interruption according to the originating IEEE 802.16m standard for a wide range of frame durations. Moreover, the proposed technique outperforms conventional handover and all well-known proposals shortening the handover interruption as well.

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Section: Related Workmentioning

confidence: 99%

Fast predicted handover in IEEE 802.16 networks

Bečvář

Mach

2010

Trans Emerging Tel Tech

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“…The paper [28] analyzes the efficiency of scanning process on handover procedure in IEEE 802.16m-based networks. Four different handover strategies are utilized to analyze the handover interruption time.…”

Section: Related Workmentioning

confidence: 99%

Latency and Dropping Rate Analysis of IEEE 802.16e Handover

Latkoski

Popovski

2010

Wireless Pers Commun

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The IEEE 802.16 standard for mobile broadband wireless access specifies a contention based handover (HO) procedure for its mobile users. There are many HO parameters defined by the standard, which need a fine tuning in order to achieve a satisfactory communication performance. This article presents a precise mathematical model for calculating the impact of handover parameters and an error-prone radio channel over the performance of IEEE 802.16 handover procedure which uses Code Division Multiple Access (CDMA) ranging codes. We analytically analyze the handover latency and handover connection dropping probability. The results are compared with experimental measurements conducted on a protocol prototype developed by using Specification and Description Language (SDL). The following parameters are investigated: values of the minimal and maximal contention window size, number of transmission allocations per frame, number of available CDMA ranging codes, timers and maximum retransmission limits used in the processes of ranging, basic capabilities negotiation and registration. We have found that all parameters need to be carefully adjusted in accordance to the network conditions: number of stations performing handover at a same time, WiMAX physical layer working parameters, and frame-error rate in the uplink and downlink radio channel.

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