Mobility

Supporting Mobile Device Communications in the Presence of Broadcast Servers

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Executive Summary

Broadcast data dissemination is well-suited for mobile wireless environments, where bandwidth is scarce, and mutual interference must be minimized. However, broadcasting monopolizes the medium, precluding clients from performing any other communication. This paper addresses this problem in two ways. First, the authors segment the server broadcast, with intervening periods of silence, during which the wireless devices may communicate. Second, the authors reduce the average access delay for clients using a novel cooperative caching scheme.

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