A threshold-based channel state feedback algorithm for modern cellular systems

Vegard Hassel; David Gesbert; Mohamed Slim Alouini; Geir E. Øien

doi:10.1109/TWC.2007.051052

A threshold-based channel state feedback algorithm for modern cellular systems

Vegard Hassel^*, David Gesbert, Mohamed Slim Alouini, Geir E. Øien

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

In this paper we propose a channel state feedback algorithm that uses multiple feedback thresholds to reduce the number of users transmitting feedback to a minimum. The users are polled with lower and lower threshold values and only the users that are above a threshold value transmit feedback to the base station. We show how this feedback algorithm can be used for any scheduling algorithm and show how closed-form expressions for the optimal threshold values can be obtained for two well-known scheduling algorithms. Finally, we propose a two-step optimization procedure for optimizing the feedback algorithm for real-life cellular standards.

Original language	English (US)
Pages (from-to)	2422-2426
Number of pages	5
Journal	IEEE Transactions on Wireless Communications
Volume	6
Issue number	7
DOIs	https://doi.org/10.1109/TWC.2007.051052
State	Published - Jul 2007
Externally published	Yes

Keywords

Land mobile radio cellular systems
Scheduling
State feedback

ASJC Scopus subject areas

Applied Mathematics
Electrical and Electronic Engineering
Computer Science Applications

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10.1109/TWC.2007.051052

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abstract = "In this paper we propose a channel state feedback algorithm that uses multiple feedback thresholds to reduce the number of users transmitting feedback to a minimum. The users are polled with lower and lower threshold values and only the users that are above a threshold value transmit feedback to the base station. We show how this feedback algorithm can be used for any scheduling algorithm and show how closed-form expressions for the optimal threshold values can be obtained for two well-known scheduling algorithms. Finally, we propose a two-step optimization procedure for optimizing the feedback algorithm for real-life cellular standards.",

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AU - Gesbert, David

AU - Alouini, Mohamed Slim

AU - Øien, Geir E.

PY - 2007/7

Y1 - 2007/7

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AB - In this paper we propose a channel state feedback algorithm that uses multiple feedback thresholds to reduce the number of users transmitting feedback to a minimum. The users are polled with lower and lower threshold values and only the users that are above a threshold value transmit feedback to the base station. We show how this feedback algorithm can be used for any scheduling algorithm and show how closed-form expressions for the optimal threshold values can be obtained for two well-known scheduling algorithms. Finally, we propose a two-step optimization procedure for optimizing the feedback algorithm for real-life cellular standards.

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KW - Scheduling

KW - State feedback

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A threshold-based channel state feedback algorithm for modern cellular systems

Abstract

Keywords

ASJC Scopus subject areas

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