White Papers

Reducing Feedback for Opportunistic Scheduling in Wireless Systems

Category: Software and Web Development, Networking and Communications

Overview This paper studies reducing the feedback overheads for users' channel state information required for opportunistic scheduling at a base station. The paper first considers only best effort traffic; here it proposes a contention based scheme known as 'Static splitting' to reduce the amount of feedback needed. The idea is to divide users into static groups, with users that belong to a group and have their current channel quality above a threshold contending to send their current feedback. The paper combines static splitting with maximum quantile scheduling - scheduling a user whose current rate is high relative to its distribution, to obtain thresholds that are independent of users' channel capacity distributions.

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Publisher: University of Texas
File Format: PDF
Date Published: Aug 31, 2007
Format: White Papers
Topics: Wireless, Mobile - Wireless Communications

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