An efficient call delivery algorithm in hierarchical cellular networks

Authors:
Sangheon Pack;Jaeyong An;Wonjun Lee
Affiliations:
School of Electrical Engineering, Korea University, Seoul, Korea;School of Electrical Engineering, Korea University, Seoul, Korea;Department of Computer Science and Engineering, Korea University, Seoul, Korea
Venue:
ICUFN'09 Proceedings of the first international conference on Ubiquitous and future networks
Year:
2009

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Abstract

The multiple registration scheme can reduce the location update cost in hierarchical cellular networks; however, it leads to the increased call setup latency to find out the current location of a mobile terminal. In this paper, we propose an efficient call delivery algorithm that employs a timer estimating the low-tier cell residence time. Analytical and simulation results demonstrate that the proposed algorithm outperforms high-tier cell first and low-tier cell first algorithms in terms of call setup latency.