IEICE TRANSACTIONS on Communications
Utility Based Cross-Layer Resource Allocation in Multiuser OFDM-Based Cognitive Radio Systems
Summary :
In OFDM-based cognitive radio systems, due to the out-of-band leakage from the secondary transmission, the interference to primary users must be considered in order to guarantee the quality of service of the primary transmission. For multiuser cognitive radio systems, there exist two crucial issues in resource allocation: fairness and efficiency, in order to balance the two issues, we proposed a new utility-based cross-layer resource allocation algorithm, which can not only control the interference to primary users caused by secondary users, but also balance the spectral efficiency and fairness among cognitive users. Further, the optimal NP-hard resource allocation problem in multiuser OFDM-based systems is reduced to the sub-optimal solution by dividing the original problem into the subcarrier allocation problem and the power allocation problem. It is shown that the proposed algorithm can obtain the best performance in terms of the average rate or the utility among existing algorithms, and at the same time, all the users obtain fair resource allocation.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E96-B No.2 pp.677-680
- Publication Date
- 2013/02/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E96.B.677
- Type of Manuscript
- LETTER
- Category
- Terrestrial Wireless Communication/Broadcasting Technologies
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Keyword
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Errong PEI, Xiaorong JING, Fang CHENG, "Utility Based Cross-Layer Resource Allocation in Multiuser OFDM-Based Cognitive Radio Systems" in IEICE TRANSACTIONS on Communications,
vol. E96-B, no. 2, pp. 677-680, February 2013, doi: 10.1587/transcom.E96.B.677.
Abstract: In OFDM-based cognitive radio systems, due to the out-of-band leakage from the secondary transmission, the interference to primary users must be considered in order to guarantee the quality of service of the primary transmission. For multiuser cognitive radio systems, there exist two crucial issues in resource allocation: fairness and efficiency, in order to balance the two issues, we proposed a new utility-based cross-layer resource allocation algorithm, which can not only control the interference to primary users caused by secondary users, but also balance the spectral efficiency and fairness among cognitive users. Further, the optimal NP-hard resource allocation problem in multiuser OFDM-based systems is reduced to the sub-optimal solution by dividing the original problem into the subcarrier allocation problem and the power allocation problem. It is shown that the proposed algorithm can obtain the best performance in terms of the average rate or the utility among existing algorithms, and at the same time, all the users obtain fair resource allocation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.677/_p
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@ARTICLE{e96-b_2_677,
author={Errong PEI, Xiaorong JING, Fang CHENG, },
journal={IEICE TRANSACTIONS on Communications},
title={Utility Based Cross-Layer Resource Allocation in Multiuser OFDM-Based Cognitive Radio Systems},
year={2013},
volume={E96-B},
number={2},
pages={677-680},
abstract={In OFDM-based cognitive radio systems, due to the out-of-band leakage from the secondary transmission, the interference to primary users must be considered in order to guarantee the quality of service of the primary transmission. For multiuser cognitive radio systems, there exist two crucial issues in resource allocation: fairness and efficiency, in order to balance the two issues, we proposed a new utility-based cross-layer resource allocation algorithm, which can not only control the interference to primary users caused by secondary users, but also balance the spectral efficiency and fairness among cognitive users. Further, the optimal NP-hard resource allocation problem in multiuser OFDM-based systems is reduced to the sub-optimal solution by dividing the original problem into the subcarrier allocation problem and the power allocation problem. It is shown that the proposed algorithm can obtain the best performance in terms of the average rate or the utility among existing algorithms, and at the same time, all the users obtain fair resource allocation.},
keywords={},
doi={10.1587/transcom.E96.B.677},
ISSN={1745-1345},
month={February},}
Copy
TY - JOUR
TI - Utility Based Cross-Layer Resource Allocation in Multiuser OFDM-Based Cognitive Radio Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 677
EP - 680
AU - Errong PEI
AU - Xiaorong JING
AU - Fang CHENG
PY - 2013
DO - 10.1587/transcom.E96.B.677
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2013
AB - In OFDM-based cognitive radio systems, due to the out-of-band leakage from the secondary transmission, the interference to primary users must be considered in order to guarantee the quality of service of the primary transmission. For multiuser cognitive radio systems, there exist two crucial issues in resource allocation: fairness and efficiency, in order to balance the two issues, we proposed a new utility-based cross-layer resource allocation algorithm, which can not only control the interference to primary users caused by secondary users, but also balance the spectral efficiency and fairness among cognitive users. Further, the optimal NP-hard resource allocation problem in multiuser OFDM-based systems is reduced to the sub-optimal solution by dividing the original problem into the subcarrier allocation problem and the power allocation problem. It is shown that the proposed algorithm can obtain the best performance in terms of the average rate or the utility among existing algorithms, and at the same time, all the users obtain fair resource allocation.
ER -
English
