이동 데이터 서비스에서 동적인 데이터 요청패턴을 지원하는 효율적인 데이터 방송 시스템

• 영문명: An Efficient Data Broadcast System Supporting Dynamic Data Request Patterns in Mobile Data Services
• 발행기관: 한국IT서비스학회
• 저자명: 신동천(DongCheon Shin)
• 간행물 정보: 『한국IT서비스학회지』한국IT서비스학회지 제8권 제1호, 179~192쪽, 전체 14쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2009.03.31

영문 초록

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 I 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. Finally, we evaluate performance of the data broadcast system. According to the results, the proposed system generally shows better performance than others.

키워드

Data Broadcast Caching Strategy Mobile Data Service