Real-time broadcast algorithm for mobile computing

Authors:
Sung-Hwa Lim;J.-H. Kim
Affiliations:
Department of Information and Communication Engineering, Graduate School of Information and Communication, Ajou University, San 5, Wonchon-Dong, Paldal-Gu, Kyung-ki-Do, Suwon 442749, South Korea;Department of Information and Communication Engineering, Graduate School of Information and Communication, Ajou University, San 5, Wonchon-Dong, Paldal-Gu, Kyung-ki-Do, Suwon 442749, South Korea
Venue:
Journal of Systems and Software
Year:
2004

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Abstract

Broadcasting mechanisms have been widely used to transfer information to a large number of clients. Information is transferred by broadcast servers (satellites or base stations) downstream with a wide bandwidth. Most of the broadcast schemes try to minimize the average "access time". This paper presents a real-time broadcast algorithm that transfers many information items including one with timing constraint. Our real-time broadcast algorithm attempts to meet the deadline for real-time information as well as to minimize the average access time for non-real-time information. Simulation results show that our algorithm can reduce the average access time for the non-real-time information while meeting the deadline for the real-time information.