엄격한 T‐축출 우선순위 대기행렬을 이용한 기회 주파수 접근 방식의 성능 분석
The Analysis of an Opportunistic Spectrum Access with a Strict T‐preemptive Priority Discipline
0
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
We propose a new priority discipline called the strict T-preemptive priority discipline, and derive the waiting time distributions of each class in the strict T-preemptive priority M/G/1 queue. Using this queueing analysis, we evaluate the performance of an opportunistic spectrum access in cognitive radio networks, where a communication channel is divided into time slots, a licensed primary user is assigned to one channel, and multiple unlicensed secondary users may opportunistically exploit time slots unused by the primary user. We also present a numerical example of the analysis of the opportunistic spectrum access where the arrival rates and service times distributions of each users are identical.
Abstract
We propose a new priority discipline called the strict T-preemptive priority discipline, and derive the waiting time distributions of each class in the strict T-preemptive priority M/G/1 queue. Using this queueing analysis, we evaluate the performance of an opportunistic spectrum access in cognitive radio networks, where a communication channel is divided into time slots, a licensed primary user is assigned to one channel, and multiple unlicensed secondary users may opportunistically exploit time slots unused by the primary user. We also present a numerical example of the analysis of the opportunistic spectrum access where the arrival rates and service times distributions of each users are identical.
참고문헌 (9)
- Conway, R.W., "Theory of scheduling" (1967), Addison-Wesley
- Haykin, S., "Cognitive radio : brain-empowered wireless communications", IEEE Journal on Selected Areas in Communications, 23(2), pp.201~220 (2005)
- 김길환, "T-preemptive priority queue and its application to the analysis of an opportunistic spectrum access in cognitive radio networks", COMPUTERS OPERATIONS RESEARCH, 39(7), pp.1394~1401 (2012), PERGAMON-ELSEVIER SCIENCE LTD
- Sankaranarayanan, S., "A bandwidth sharing approach to improve licensed spectrum utilization", New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005. 2005 First IEEE International Symposium on, pp.279~288 (2005)
- Shiang, H.P., "Queuing-based dynamic channel selection for heterogeneous multimedia applications over cognitive radio networks", Multimedia, IEEE Transactions on, 10(5), pp.896~909 (2008)
- Suliman, I., "Queueing analysis of opportunistic access in cognitive radios", Cognitive Radio and Advanced Spectrum Management, 2009. CogART 2009. Second International Workshop on, pp.153~157 (2009)
- Takagi, H, "Queueing analysis" (1991), North-Holland
- Tran, H., "Average waiting time of packets with different priorities in cognitive radio networks", Wireless Pervasive Computing (ISWPC), 2010 5th IEEE International Symposium on, pp.122~127 (2010)
- Zhang, C., "Cooperative cognitive radio with priority queueing analysis", Communications, 2009. ICC’09. IEEE International Conference on, pp.1~5 (2009)