Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks

Chunhua Sun, Wei Chen, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In cognitive OFDMA networks, spectrum sensing is highly needed to accurately observe the spectrum environment, so as to avoid harmful interference to licensed users. However, to save energy, selfish users may not be willing to perform sensing. In order to encourage cognitive users to sense the multiple channels as well as guarantee fairness among the sensing users, this paper presents a joint PHY-MAC framework for cognitive OFDMA systems. In this framework, a higher access priority in the MAC layer will be rewarded to sensing users and the scheduling decision is made based on both the channel quality and sensing contribution of each user. The throughput for the cognitive system and the fairness for each cognitive user are analyzed under the joint framework. Simulation results will then show that the proposed protocol can achieve fairness and efficiency for cognitive users.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: 23 May 201027 May 2010

Other

Other2010 IEEE International Conference on Communications, ICC 2010
CountrySouth Africa
CityCape Town
Period23/5/1027/5/10

Fingerprint

Cognitive systems
Scheduling
Throughput

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Sun, C., Chen, W., & Letaief, K. (2010). Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks. In 2010 IEEE International Conference on Communications, ICC 2010 [5501791] https://doi.org/10.1109/ICC.2010.5501791

Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks. / Sun, Chunhua; Chen, Wei; Letaief, Khaled.

2010 IEEE International Conference on Communications, ICC 2010. 2010. 5501791.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sun, C, Chen, W & Letaief, K 2010, Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks. in 2010 IEEE International Conference on Communications, ICC 2010., 5501791, 2010 IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 23/5/10. https://doi.org/10.1109/ICC.2010.5501791
Sun C, Chen W, Letaief K. Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks. In 2010 IEEE International Conference on Communications, ICC 2010. 2010. 5501791 https://doi.org/10.1109/ICC.2010.5501791
Sun, Chunhua ; Chen, Wei ; Letaief, Khaled. / Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks. 2010 IEEE International Conference on Communications, ICC 2010. 2010.
@inproceedings{5153531e3b3b4a069eaf769c5a3a22c2,
title = "Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks",
abstract = "In cognitive OFDMA networks, spectrum sensing is highly needed to accurately observe the spectrum environment, so as to avoid harmful interference to licensed users. However, to save energy, selfish users may not be willing to perform sensing. In order to encourage cognitive users to sense the multiple channels as well as guarantee fairness among the sensing users, this paper presents a joint PHY-MAC framework for cognitive OFDMA systems. In this framework, a higher access priority in the MAC layer will be rewarded to sensing users and the scheduling decision is made based on both the channel quality and sensing contribution of each user. The throughput for the cognitive system and the fairness for each cognitive user are analyzed under the joint framework. Simulation results will then show that the proposed protocol can achieve fairness and efficiency for cognitive users.",
author = "Chunhua Sun and Wei Chen and Khaled Letaief",
year = "2010",
doi = "10.1109/ICC.2010.5501791",
language = "English",
isbn = "9781424464043",
booktitle = "2010 IEEE International Conference on Communications, ICC 2010",

}

TY - GEN

T1 - Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks

AU - Sun, Chunhua

AU - Chen, Wei

AU - Letaief, Khaled

PY - 2010

Y1 - 2010

N2 - In cognitive OFDMA networks, spectrum sensing is highly needed to accurately observe the spectrum environment, so as to avoid harmful interference to licensed users. However, to save energy, selfish users may not be willing to perform sensing. In order to encourage cognitive users to sense the multiple channels as well as guarantee fairness among the sensing users, this paper presents a joint PHY-MAC framework for cognitive OFDMA systems. In this framework, a higher access priority in the MAC layer will be rewarded to sensing users and the scheduling decision is made based on both the channel quality and sensing contribution of each user. The throughput for the cognitive system and the fairness for each cognitive user are analyzed under the joint framework. Simulation results will then show that the proposed protocol can achieve fairness and efficiency for cognitive users.

AB - In cognitive OFDMA networks, spectrum sensing is highly needed to accurately observe the spectrum environment, so as to avoid harmful interference to licensed users. However, to save energy, selfish users may not be willing to perform sensing. In order to encourage cognitive users to sense the multiple channels as well as guarantee fairness among the sensing users, this paper presents a joint PHY-MAC framework for cognitive OFDMA systems. In this framework, a higher access priority in the MAC layer will be rewarded to sensing users and the scheduling decision is made based on both the channel quality and sensing contribution of each user. The throughput for the cognitive system and the fairness for each cognitive user are analyzed under the joint framework. Simulation results will then show that the proposed protocol can achieve fairness and efficiency for cognitive users.

UR - http://www.scopus.com/inward/record.url?scp=77955361413&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955361413&partnerID=8YFLogxK

U2 - 10.1109/ICC.2010.5501791

DO - 10.1109/ICC.2010.5501791

M3 - Conference contribution

SN - 9781424464043

BT - 2010 IEEE International Conference on Communications, ICC 2010

ER -