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이동 데이터 서비스에서 동적인 데이터 요청패턴을 지원하는 효율적인 데이터 방송 시스템An Efficient Data Broadcast System Supporting Dynamic Data Request Patterns in Mobile Data Services

Authors
신동천
Issue Date
2009
Publisher
한국IT서비스학회
Keywords
Data Broadcast; Caching Strategy; Mobile Data Service
Citation
한국IT서비스학회지, v.8, no.1, pp 179 - 192
Pages
14
Journal Title
한국IT서비스학회지
Volume
8
Number
1
Start Page
179
End Page
192
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/32600
ISSN
1975-4256
Abstract
In wireless environments, it is very effective to introduce a data broadcast system for providing a number of clients with mobile data services. In particular, an efficient broadcast scheduling and a caching strategy are very important for performance of data broadcast systems in wireless environments which have such inherent restrictions as low bandwidth, frequent disconnections, and short battery life. In this paper, we present a data broadcast scheduling strategy using bit vectors to cope with dynamic request patterns of clients. In addition, we also propose an efficient caching strategy, 2FWT, that takes characteristics of the broadcast scheduling strategy into account. Finally, we evaluate performance of the data broadcast system. According to the results, the proposed system generally shows better performance than others.
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