Efficient allocation of CQI channels in broadband wireless networks

Reuven Cohen; Guy Grebla

doi:10.1109/INFCOM.2011.5935325

Efficient allocation of CQI channels in broadband wireless networks

Reuven Cohen, Guy Grebla

Computer Science

Technion - Israel Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In an OFDMA network, the modulation and coding scheme (MCS) of the messages sent to the mobile stations (MSs) varies according to channel condition. To determine the appropriate MCS level, the base station (BS) allocates to every active MS a CQI (Channel Quality Information) channel. The CQI bandwidth is a scarce resource whose allocation must be adjusted to the actual needs of the MSs. However, allocations and deallocations of CQI channels require expensive signaling messages between the BS and the MSs, and therefore should be minimized. In this paper we propose a framework for the management of the CQI bandwidth by the BS. We identify three related optimization problems and propose efficient algorithms for solving them.

Original language	English
Title of host publication	2011 Proceedings IEEE INFOCOM
Pages	96-100
Number of pages	5
DOIs	https://doi.org/10.1109/INFCOM.2011.5935325
State	Published - 2011
Event	IEEE INFOCOM 2011 - Shanghai, China Duration: 10 Apr 2011 → 15 Apr 2011

Publication series

Name	Proceedings - IEEE INFOCOM

Conference

Conference	IEEE INFOCOM 2011
Country/Territory	China
City	Shanghai
Period	10/04/11 → 15/04/11

All Science Journal Classification (ASJC) codes

General Computer Science
Electrical and Electronic Engineering

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10.1109/INFCOM.2011.5935325

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title = "Efficient allocation of CQI channels in broadband wireless networks",

abstract = "In an OFDMA network, the modulation and coding scheme (MCS) of the messages sent to the mobile stations (MSs) varies according to channel condition. To determine the appropriate MCS level, the base station (BS) allocates to every active MS a CQI (Channel Quality Information) channel. The CQI bandwidth is a scarce resource whose allocation must be adjusted to the actual needs of the MSs. However, allocations and deallocations of CQI channels require expensive signaling messages between the BS and the MSs, and therefore should be minimized. In this paper we propose a framework for the management of the CQI bandwidth by the BS. We identify three related optimization problems and propose efficient algorithms for solving them.",

author = "Reuven Cohen and Guy Grebla",

year = "2011",

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language = "الإنجليزيّة",

isbn = "9781424499212",

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note = "IEEE INFOCOM 2011 ; Conference date: 10-04-2011 Through 15-04-2011",

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AU - Grebla, Guy

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N2 - In an OFDMA network, the modulation and coding scheme (MCS) of the messages sent to the mobile stations (MSs) varies according to channel condition. To determine the appropriate MCS level, the base station (BS) allocates to every active MS a CQI (Channel Quality Information) channel. The CQI bandwidth is a scarce resource whose allocation must be adjusted to the actual needs of the MSs. However, allocations and deallocations of CQI channels require expensive signaling messages between the BS and the MSs, and therefore should be minimized. In this paper we propose a framework for the management of the CQI bandwidth by the BS. We identify three related optimization problems and propose efficient algorithms for solving them.

AB - In an OFDMA network, the modulation and coding scheme (MCS) of the messages sent to the mobile stations (MSs) varies according to channel condition. To determine the appropriate MCS level, the base station (BS) allocates to every active MS a CQI (Channel Quality Information) channel. The CQI bandwidth is a scarce resource whose allocation must be adjusted to the actual needs of the MSs. However, allocations and deallocations of CQI channels require expensive signaling messages between the BS and the MSs, and therefore should be minimized. In this paper we propose a framework for the management of the CQI bandwidth by the BS. We identify three related optimization problems and propose efficient algorithms for solving them.

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U2 - 10.1109/INFCOM.2011.5935325

DO - 10.1109/INFCOM.2011.5935325

M3 - منشور من مؤتمر

SN - 9781424499212

T3 - Proceedings - IEEE INFOCOM

SP - 96

EP - 100

BT - 2011 Proceedings IEEE INFOCOM

T2 - IEEE INFOCOM 2011

Y2 - 10 April 2011 through 15 April 2011

ER -

Efficient allocation of CQI channels in broadband wireless networks

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