The week's pick
Reseach Article
Multi HLR Architecture for Improving Location Management in PCS Network
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 51 - Number 20 |
| Year of Publication: 2012 |
| Authors: Rajeev R. Kumar Tripathi, G. S. Chandel, Ravindra Gupta |
10.5120/8161-1945
|
Rajeev R. Kumar Tripathi, G. S. Chandel, Ravindra Gupta . Multi HLR Architecture for Improving Location Management in PCS Network. International Journal of Computer Applications. 51, 20 ( August 2012), 42-47. DOI=10.5120/8161-1945
Abstract
This paper proposes a multi HLR scheme for location management in PCS network instead of having a single HLR. In conventional architecture we have a single HLR that acts as centralized database to store the user profile along with the MT's location information. This approach of single HLR suffers from two major disadvantages: bottleneck and call misrouting during the peak load. In multi HLR architecture, we store the users profile and MT's location information zone wise or area wise. By doing so, we minimize the possibility of both bottleneck and call misrouting. In conventional architecture, we use explicit de-registration scheme for de-registration of an MT from a VLR on move. Several de-registration schemes has proposed previously in spite of explicit de-registration scheme as: implicit de-registration scheme, polling de-registration scheme, timeout de-registration scheme and group de-registration scheme. Performance analysis of all these schemes shows that group de-registration scheme is best among existing and proposed schemes. In the proposed multi HLR architecture group de-registration scheme is implemented instead of explicit de-registration scheme. Result shows that proposed architecture with group de-registration scheme is more efficient than explicit de-registration scheme.
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.
- 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).
- George Couloris, Jean Dollimore and Tim Kindberg, "Distributed Systems Concepts and Design," Pearson Education, 4e.
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