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http://dx.doi.org/10.3745/KIPSTC.2005.12C.5.701

A New Channel Reservation Scheme for Soft Handoff Algorithms in Wireless Networks  

Kwon Se-Dong (명지대학교 컴퓨터공학과)
Park Hyun-Min (명지대학교 공과대학 컴퓨터학부)
Publication Information
The KIPS Transactions:PartC / v.12C, no.5, 2005 , pp. 701-708 More about this Journal
Abstract
The mobility prediction algorithm and the channel reservation scheme have been reported as an effective means to provide QoS guarantees and the efficient resource reservation in wireless networks. Among these prediction algorithms, the recently proposed Detailed-ZMHB algorithm makes use of the history of the user's positions within the current cell to predict the next cell, which provides the better prediction accuracy than the others. The handoff prioritizing schemes are proposed to provide improved performance at the expense of an increase in the blocking probability of new calls. In the soft handoff of the CDMA systems, a mobile can communicate via two adjacent cells simultaneously for a while before the actual handoff takes place. In this paper, we propose a new channel reservation scheme making use of the user mobility pattern information in order to reduce the call dropping probability. Our results show that the proposed scheme gives about 67.5-71.1$\%$ lower call dropping probability, compared to the existing scheme.
Keywords
Prediction Algorithm; Channel Reservation Scheme; Blocking Probability; Dropping Probability; Total Failure Probability; History Based Channel Reservation Scheme;
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Times Cited By KSCI : 3  (Citation Analysis)
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