| Publisher | University of Texas | ||
|---|---|---|---|
| Format | 153.0KB PDF | Date added | 12 May 2006 |
| Topics | Mobile - Wireless Communications, Wireless | ||
| Downloads | 4 | ||
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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