The week's pick
Reseach Article
Performance Analysis of Existing Location Management Scheme with its Variants in PCS Network
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 68 - Number 16 |
| Year of Publication: 2013 |
| Authors: Rajeev R. Kumar Tripathi, G. S. Chandel, Ravindra Gupta |
10.5120/11663-7252
|
Rajeev R. Kumar Tripathi, G. S. Chandel, Ravindra Gupta . Performance Analysis of Existing Location Management Scheme with its Variants in PCS Network. International Journal of Computer Applications. 68, 16 ( April 2013), 16-25. DOI=10.5120/11663-7252
Abstract
This paper is presenting a comparative study of existing location management scheme with its various variants in Personal Communication Services (PCS) network. The existing location management scheme is based on two tier database architecture; Home Location Register (HLR) and Visitor Location Register (VLR). In the existing location management scheme, there is a single HLR. In the HLR, profile of a Mobile Terminal (MT) is permanently stored. The VLR caches the profile of the MT from the HLR when it is providing the service to the mobile terminal. Mobile terminal, on move changes its location and comes under the Registration Area (RA) of new VLR. The MT profile should be removed from the VLR from where this MT is coming from and the HLR should have the information of current location of the MT. In the existing location management scheme this is done by the explicit de-registration scheme. In the existing call delivery procedure of PCS network, the HLR is always consulted to get the current location of the MT. This call delivery procedure supports an idea that is it necessary to inform the VLR that MT who was residing in its RA is now in the RA of another VLR? This paper has used other de-registration schemes as: Implicit de-registration, Polling de-registration, Timeout de-registration scheme and Group de-registration scheme in the variant of existing location management scheme. The single HLR architecture is prone to bottleneck and multi HLR architecture for PCS network is proposed for the efficient call delivery. Analysis done in this paper shows that we can significantly reduce the location management cost in the various variants of the existing location management schemes. This paper finally concludes that group de-registration scheme when implemented with the proposed multi HLR architecture gives better results.
References
- Rajeev R. Kumar Tripathi, Sudhir Agrawal and Swati Tiwari, "Performance Analysis of De-registration Strategy in Personal Communication Network," IJCA, vol. 24-no. 1, June 2011.
- Rajeev R. Kumar Tripathi, Sudhir Agrawal and Swati Tiwari, "Modified HLR-VLR Location Management Scheme in PCS Network," IJCA, vol. 6-no. 5, Sept 2010.
- Rajeev R. Kumar Tripathi, G. S. Chandel and Ravindra Gupta, "Multi HLR Architecture for Improving Location Management in PCS Network,"IJCA, vol. 51, no. 20, Aug. 2012.
- Z. Mao, C. Douligeris, "A novel deregistration strategy for mobile network," IEEE VTS 2750-2754, vol. 6, Aug 2002.
- Haider Safa and Samuel Pierre, "A New Architecture for Improving Location management in PCS Network," Journal of Computer Science1 (2):249-258, 2005.
- Sarvpal H. Singh, Sudhir Agrawal and Vijay Kumar "Performance Evaluation of Location Management Techniques in PCS Networks," IJCA, vol. 15, no-8, Feb-2011.
- Guan-Chi Chen and Suh-Yin Lee, "Evaluation of Distributed and Replicated HLR for Location Management in PCS Network," Journal Of Information Science And Engineering 19, 85-101 (2003).
- A. Bar-Noy, I. Kessler and M. Sidi, "Mobile Users: To Update or Not to Update?" ACM-Baltzer J. Wireless Networks, vol. 1, no. 2, July 1995, pp. 175¬p;86.
- Sarvpal H. Singh, Vijay Kumar, "A Modified Multi-HLR Architecture for Implicit De-registration Strategies", IJCA, vol. 52, n0. 13, Aug. 2012.
- Li, Pan and Xiao, "A Dynamic HLR Location Management Scheme for PCS Network", IEEE, INFOCOM, 2004.
- Akyildiz, I. F. , W. Wang, 2002. A dynamic location management scheme for next-generation multi-tier pcs systems. IEEE Transactions Wireless Communications, 1: 178-189
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