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The study of quick download mechanism in an infrastructural wireless environment
Author(s) -
Shin HawYun,
Wu JeanLien C.
Publication year - 2006
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.804
Subject(s) - download , handover , computer science , computer network , network packet , channel (broadcasting) , wireless , scheme (mathematics) , guard (computer science) , blocking (statistics) , real time computing , telecommunications , world wide web , mathematical analysis , mathematics , programming language
Frequent handoff consumes a lot of system capability and signalling resources in a mobile system. In this paper, we present download mechanisms in mobile systems or broadcast systems to support data users to receive the whole packet in time before moving out of the coverage area. Three download strategies: Quick Download using Multi‐channel ( QDM ) scheme, Prior Download using Single channel ( PDS ) scheme and the Quit Download ( QUD ) scheme are proposed in this study where the efficiencies of the three strategies are compared with the one without particular treatment. Some significant estimations such as the percentage of handoff data users having completed service before leaving the cell, the mean waiting time of non‐handoff data users, and the blocking probability of data users are analysed and compared. The numerical results show that, the QDM strategy is most efficient in reducing the handoff rate, the QUD strategy can assure the waiting time of non‐handoff data users and the PDS strategy can keep the handoff rate constant at light and heavy voice load. Furthermore, various number of guard channels for data users are evaluated in terms of data and voice performance based on various download strategies. Copyright © 2006 John Wiley & Sons, Ltd.