A new location updating method for digital cellular systems

Okasaka, Shozo; Onoe, S.; Yasuda, Shinichi; Maebara, A.

doi:10.1109/vetec.1991.140508

Cited by 88 publications

(26 citation statements)

References 1 publication

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“…But it is not devoid of all adversities as there is something called Ping-Pong effect that occurs when a user travels between the cells of neighboring location area, it creates unnecessary location update and hence, costs more money and resources. Though, to overcome this problem many proposals had been put forward but none of them are used widely in particular [29]. …”

Section: Location Areamentioning

confidence: 99%

Survey Paper: Location Management in CDMA Network

Nath¹,

Parija²,

Sahu³

et al. 2015

IJGDC

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Section: Location Areamentioning

confidence: 99%

Survey Paper: Location Management in CDMA Network

Nath¹,

Parija²,

Sahu³

et al. 2015

IJGDC

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show abstract

“…The evaluation of the algorithm uses different call arrival probability functions and plots normalized cost functions comparing the proposed scheme with a fixed scheme. To evaluate the proposed algorithm in Okasaka & Onoe, the mobility model used in was very simple, consisting of a square grid of cells and one subscriber moving at constant velocity (speed and direction) [9]. The main purpose of this analysis was to evaluate the performance of the protocol with Proceeding of the 2011 IEEE International Conference on Space Science and Communication (IconSpace) 12-13 July 2011, Penang, Malaysia 978-1-4577-0564-9/11/$26.00 ©2011 IEEE respect to avoiding thrashing between cells and location areas due to radio propagation effects.…”

Section: Fuzzy Approachmentioning

confidence: 99%

Location management cost reduction using fuzzy logic in cellular radio network

Munadi

Ismail

Abdullah

et al. 2011

Proceeding of the 2011 IEEE International Conference on Space Science and Communication (IconSpace)

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In cellular network, mobility management has allowed mobile subscribers to move freely across different networks while maintaining its quality of service for a variety of applications. Location management is one of the main tasks of mobility management. The location management cost depends mainly on subscribers' mobility behavior and its performance which is typically measured by the number of location update performed and the number of cells paged. The objective of this research is to propose, validate and evaluate the performance of location update scheme using fuzzy logic technique for cellular radio system. Three metrics: speed, user density and residence time are proposed and used for fuzzy evaluation. The results of using fuzzy logic technique show that location management cost reduction using Fuzzy logic in cellular radio network using fuzzy logic is decreased about 2% and outperforms the conventional mechanism.

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“…Several new location management schemes introduce incremental improvements to the current LA approach. For instance, overlapping LA systems were introduced to reduce the number of update operations that result from users moving near the LA boundaries [7], [8]. Sequential paging methods were suggested in [9]- [11] to reduce the amount of paging induced by an incoming call.…”

Section: A Related Workmentioning

confidence: 99%

Efficient location area planning for personal communication systems

Bejerano¹,

Smith²,

Naor

et al. 2006

IEEE/ACM Trans. Networking

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A central problem in personal communication systems is to optimize bandwidth usage, while providing Quality of Service (QoS) guarantees to mobile users. Network mobility management, and in particular, location management, consumes a significant portion of bandwidth, which is a necessary overhead for supporting mobile users. We focus our efforts on minimizing this overhead. Unlike previous works, we concentrate on optimizing existing schemes, and so the algorithms we present are easily incorporated into current networks. We present the first polynomial time approximation algorithms for minimum bandwidth location management. In planar graphs, our algorithm provably generates a solution that uses no more than a constant factor more bandwidth than the optimal solution. In general graphs, our algorithm provably generates a solution that uses just a factor (log ) more bandwidth than optimal where is the number of base stations in the network. We show that, in practice, our algorithm produces near-optimal results and outperforms other schemes that are described in the literature. For the important case of the line graph, we present a polynomial-time optimal algorithm. Finally, we illustrate that our algorithm can also be used for optimizing the handoff mechanism.

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A new location updating method for digital cellular systems

Cited by 88 publications

References 1 publication

Survey Paper: Location Management in CDMA Network

Survey Paper: Location Management in CDMA Network

Location management cost reduction using fuzzy logic in cellular radio network

Efficient location area planning for personal communication systems

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