Abstract
We consider problems involving how to schedule broadcasts in a pulled-based data-dissemination service, such as the DirecPC system, where data requested by the clients is delivered via broadcast. In particular, we consider the case where all the data items are of approximately equal in size and preemption is not allowed. We give an offline O(1)-speed O(1)-approximation algorithm for the problem of minimizing the average response time. We provide worst-case analysis, under various objective functions, of the online algorithms that have appeared in the literature, namely, Most Requests First, First Come First Served, and Longest Wait First.
Supported in part by NSF Grant CCR-9734927 and by ASOSR grant F49620010011.
Supported in part by NSF Grant CCR-9734927 and by ASOSR grant F49620010011.
Supported in part by a gift from AT&T
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Kalyanasundaram, B., Pruhs, K., Velauthapillai, M. (2000). Scheduling Broadcasts in Wireless Networks. In: Paterson, M.S. (eds) Algorithms - ESA 2000. ESA 2000. Lecture Notes in Computer Science, vol 1879. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45253-2_27
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DOI: https://doi.org/10.1007/3-540-45253-2_27
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