Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks
In this paper, a new joint admission and power control scheme is introduced for wireless cognitive radio networks. It is assumed that the Cognitive Users (CUs) arrive sequentially in time and exploit the spectrum simultaneous to the licensed primary users. The objective is to minimize the blocking p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Iran Telecom Research Center
2010-12-01
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| Series: | International Journal of Information and Communication Technology Research |
| Subjects: | |
| Online Access: | http://ijict.itrc.ac.ir/article-1-248-en.html |
| _version_ | 1811169305693257728 |
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| author | Masoumeh Farmahini Farahani Abdorasoul Ghasemi Seyyed Mohammad Razavizadeh |
| author_facet | Masoumeh Farmahini Farahani Abdorasoul Ghasemi Seyyed Mohammad Razavizadeh |
| author_sort | Masoumeh Farmahini Farahani |
| collection | DOAJ |
| description | In this paper, a new joint admission and power control scheme is introduced for wireless cognitive radio networks. It is assumed that the Cognitive Users (CUs) arrive sequentially in time and exploit the spectrum simultaneous to the licensed primary users. The objective is to minimize the blocking probability of the new arriving CUs while the interference limit constraint of primary users is not violated and the quality of service (QoS) requirements of the current admitted CUs is satisfied. To these aims, an algorithm is developed for CUs admission in which the power of the new arriving CU gradually increases according to two predefined parameters, Primary Interference Margin (PIM) and Secondary Interference Margin (SIM). In addition to protect the QoS of the current CUs, their powers are boosted by a particular parameter, which is calculated based on PIM and their maximum allowable power. Moreover, the PIM guarantees the protection of the primary users during the admission phase of the new arriving CU. Two admission control algorithms have been proposed, a safe admission which tightly admits a new CU and a moderate one which loosely accepts a new CU. Simulation results are provided to evaluate the performance of the proposed algorithms in terms of the blocking and outage probability and compared with recent proposed schemes. These results show that the proposed algorithms outperform the similar schemes while they are more suitable for a practical scenario. |
| first_indexed | 2024-04-10T16:41:15Z |
| format | Article |
| id | doaj.art-98ba9a2bc2f848ce9060adc7859bb5f5 |
| institution | Directory Open Access Journal |
| issn | 2251-6107 2783-4425 |
| language | English |
| last_indexed | 2024-04-10T16:41:15Z |
| publishDate | 2010-12-01 |
| publisher | Iran Telecom Research Center |
| record_format | Article |
| series | International Journal of Information and Communication Technology Research |
| spelling | doaj.art-98ba9a2bc2f848ce9060adc7859bb5f52023-02-08T07:30:00ZengIran Telecom Research CenterInternational Journal of Information and Communication Technology Research2251-61072783-44252010-12-01243340Sequential Interference-Aware Admission Control in Underlay Cognitive Radio NetworksMasoumeh Farmahini Farahani0Abdorasoul Ghasemi1Seyyed Mohammad Razavizadeh2 Communication Technology Faculty Iran Telecommunication Research Center (ITRC) Tehran, Iran Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran Department of Electrical Engineering, Iran University of Science and Technology (IUST) Tehran, Iran In this paper, a new joint admission and power control scheme is introduced for wireless cognitive radio networks. It is assumed that the Cognitive Users (CUs) arrive sequentially in time and exploit the spectrum simultaneous to the licensed primary users. The objective is to minimize the blocking probability of the new arriving CUs while the interference limit constraint of primary users is not violated and the quality of service (QoS) requirements of the current admitted CUs is satisfied. To these aims, an algorithm is developed for CUs admission in which the power of the new arriving CU gradually increases according to two predefined parameters, Primary Interference Margin (PIM) and Secondary Interference Margin (SIM). In addition to protect the QoS of the current CUs, their powers are boosted by a particular parameter, which is calculated based on PIM and their maximum allowable power. Moreover, the PIM guarantees the protection of the primary users during the admission phase of the new arriving CU. Two admission control algorithms have been proposed, a safe admission which tightly admits a new CU and a moderate one which loosely accepts a new CU. Simulation results are provided to evaluate the performance of the proposed algorithms in terms of the blocking and outage probability and compared with recent proposed schemes. These results show that the proposed algorithms outperform the similar schemes while they are more suitable for a practical scenario.http://ijict.itrc.ac.ir/article-1-248-en.htmlcognitive radio networkunderlay transmissionadmission controlpower control |
| spellingShingle | Masoumeh Farmahini Farahani Abdorasoul Ghasemi Seyyed Mohammad Razavizadeh Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks International Journal of Information and Communication Technology Research cognitive radio network underlay transmission admission control power control |
| title | Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks |
| title_full | Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks |
| title_fullStr | Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks |
| title_full_unstemmed | Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks |
| title_short | Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks |
| title_sort | sequential interference aware admission control in underlay cognitive radio networks |
| topic | cognitive radio network underlay transmission admission control power control |
| url | http://ijict.itrc.ac.ir/article-1-248-en.html |
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