Energy-Aware Cooperative Wireless Networks with Multiple Cognitive Users

Mahmoud Ashour, Muhammad Majid Butt, Amr Mohamed, Tamer ElBatt, Marwan M Krunz

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We consider a multi-packet transmission framework that allows multiple SUs to transmit simultaneously because of dirty-paper coding. We propose power allocation and scheduling policies that optimize the throughput for both PU and SU with minimum energy expenditure. The performance of the system is evaluated in terms of throughput and delay under different opportunistic relay selection policies. Toward this objective, we present a mathematical framework for deriving stability conditions for all queues in the system. Consequently, the throughput of both primary and secondary links is quantified. Furthermore, a moment generating function approach is employed to derive a closed-form expression for the average delay encountered by the PU packets. Results reveal that we achieve better performance in terms of throughput and delay at lower energy cost as compared with equal power allocation schemes proposed earlier in the literature. Extensive simulations are conducted to validate our theoretical findings.

Original languageEnglish (US)
Article number7493693
Pages (from-to)3233-3245
Number of pages13
JournalIEEE Transactions on Communications
Volume64
Issue number8
DOIs
StatePublished - Aug 1 2016

Fingerprint

Wireless networks
Throughput
Cognitive radio
Data communication systems
Scheduling
Costs

Keywords

  • Cognitive relaying
  • delay
  • opportunistic communication
  • relay selection
  • throughput

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Energy-Aware Cooperative Wireless Networks with Multiple Cognitive Users. / Ashour, Mahmoud; Butt, Muhammad Majid; Mohamed, Amr; ElBatt, Tamer; Krunz, Marwan M.

In: IEEE Transactions on Communications, Vol. 64, No. 8, 7493693, 01.08.2016, p. 3233-3245.

Research output: Contribution to journalArticle

Ashour, Mahmoud ; Butt, Muhammad Majid ; Mohamed, Amr ; ElBatt, Tamer ; Krunz, Marwan M. / Energy-Aware Cooperative Wireless Networks with Multiple Cognitive Users. In: IEEE Transactions on Communications. 2016 ; Vol. 64, No. 8. pp. 3233-3245.
@article{f4ce36d684e54bdba4446204dec7d942,
title = "Energy-Aware Cooperative Wireless Networks with Multiple Cognitive Users",
abstract = "In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We consider a multi-packet transmission framework that allows multiple SUs to transmit simultaneously because of dirty-paper coding. We propose power allocation and scheduling policies that optimize the throughput for both PU and SU with minimum energy expenditure. The performance of the system is evaluated in terms of throughput and delay under different opportunistic relay selection policies. Toward this objective, we present a mathematical framework for deriving stability conditions for all queues in the system. Consequently, the throughput of both primary and secondary links is quantified. Furthermore, a moment generating function approach is employed to derive a closed-form expression for the average delay encountered by the PU packets. Results reveal that we achieve better performance in terms of throughput and delay at lower energy cost as compared with equal power allocation schemes proposed earlier in the literature. Extensive simulations are conducted to validate our theoretical findings.",
keywords = "Cognitive relaying, delay, opportunistic communication, relay selection, throughput",
author = "Mahmoud Ashour and Butt, {Muhammad Majid} and Amr Mohamed and Tamer ElBatt and Krunz, {Marwan M}",
year = "2016",
month = "8",
day = "1",
doi = "10.1109/TCOMM.2016.2581814",
language = "English (US)",
volume = "64",
pages = "3233--3245",
journal = "IEEE Transactions on Communications",
issn = "0090-6778",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "8",

}

TY - JOUR

T1 - Energy-Aware Cooperative Wireless Networks with Multiple Cognitive Users

AU - Ashour, Mahmoud

AU - Butt, Muhammad Majid

AU - Mohamed, Amr

AU - ElBatt, Tamer

AU - Krunz, Marwan M

PY - 2016/8/1

Y1 - 2016/8/1

N2 - In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We consider a multi-packet transmission framework that allows multiple SUs to transmit simultaneously because of dirty-paper coding. We propose power allocation and scheduling policies that optimize the throughput for both PU and SU with minimum energy expenditure. The performance of the system is evaluated in terms of throughput and delay under different opportunistic relay selection policies. Toward this objective, we present a mathematical framework for deriving stability conditions for all queues in the system. Consequently, the throughput of both primary and secondary links is quantified. Furthermore, a moment generating function approach is employed to derive a closed-form expression for the average delay encountered by the PU packets. Results reveal that we achieve better performance in terms of throughput and delay at lower energy cost as compared with equal power allocation schemes proposed earlier in the literature. Extensive simulations are conducted to validate our theoretical findings.

AB - In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We consider a multi-packet transmission framework that allows multiple SUs to transmit simultaneously because of dirty-paper coding. We propose power allocation and scheduling policies that optimize the throughput for both PU and SU with minimum energy expenditure. The performance of the system is evaluated in terms of throughput and delay under different opportunistic relay selection policies. Toward this objective, we present a mathematical framework for deriving stability conditions for all queues in the system. Consequently, the throughput of both primary and secondary links is quantified. Furthermore, a moment generating function approach is employed to derive a closed-form expression for the average delay encountered by the PU packets. Results reveal that we achieve better performance in terms of throughput and delay at lower energy cost as compared with equal power allocation schemes proposed earlier in the literature. Extensive simulations are conducted to validate our theoretical findings.

KW - Cognitive relaying

KW - delay

KW - opportunistic communication

KW - relay selection

KW - throughput

UR - http://www.scopus.com/inward/record.url?scp=84985953101&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84985953101&partnerID=8YFLogxK

U2 - 10.1109/TCOMM.2016.2581814

DO - 10.1109/TCOMM.2016.2581814

M3 - Article

AN - SCOPUS:84985953101

VL - 64

SP - 3233

EP - 3245

JO - IEEE Transactions on Communications

JF - IEEE Transactions on Communications

SN - 0090-6778

IS - 8

M1 - 7493693

ER -