Cooperative overlay cognitive radio with opportunistic link selection

Ammar Zafar; Mohammad Shaqfeh; Mohamed Slim Alouini; Hussein Alnuweiri

Cooperative overlay cognitive radio with opportunistic link selection

Ammar Zafar, Mohammad Shaqfeh, Mohamed Slim Alouini, Hussein Alnuweiri

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

Abstract

This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources.

Original language	English (US)
Title of host publication	10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013
Publisher	IEEE Computer Society
Pages	254-258
Number of pages	5
ISBN (Print)	9783800735297
State	Published - 2013
Event	10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013 - Ilmenau, Germany Duration: Aug 27 2013 → Aug 30 2013

Other

Other	10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013
Country/Territory	Germany
City	Ilmenau
Period	08/27/13 → 08/30/13

Keywords

Buffer-aided relay
Cooperative relaying
Opportunistic scheduling
Overlay cognitive radio

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering
Communication

Cite this

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title = "Cooperative overlay cognitive radio with opportunistic link selection",

abstract = "This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources.",

keywords = "Buffer-aided relay, Cooperative relaying, Opportunistic scheduling, Overlay cognitive radio",

author = "Ammar Zafar and Mohammad Shaqfeh and Alouini, {Mohamed Slim} and Hussein Alnuweiri",

year = "2013",

language = "English (US)",

isbn = "9783800735297",

pages = "254--258",

booktitle = "10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013",

publisher = "IEEE Computer Society",

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note = "10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013 ; Conference date: 27-08-2013 Through 30-08-2013",

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AU - Zafar, Ammar

AU - Shaqfeh, Mohammad

AU - Alouini, Mohamed Slim

AU - Alnuweiri, Hussein

PY - 2013

Y1 - 2013

N2 - This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources.

AB - This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources.

KW - Buffer-aided relay

KW - Cooperative relaying

KW - Opportunistic scheduling

KW - Overlay cognitive radio

UR - http://www.scopus.com/inward/record.url?scp=84903130437&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84903130437

SN - 9783800735297

SP - 254

EP - 258

BT - 10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013

PB - IEEE Computer Society

T2 - 10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013

Y2 - 27 August 2013 through 30 August 2013

ER -

Cooperative overlay cognitive radio with opportunistic link selection

Abstract

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Keywords

ASJC Scopus subject areas

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