TY - GEN
T1 - Opportunistic spectrum sharing with quality-of-service support in cognitive radio networks
AU - Li, Xiaojun
AU - Li, Quanzhong
AU - Liu, Kai
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/1/26
Y1 - 2015/1/26
N2 - Opportunistic spectrum sharing (OSS) has become an effective method to fully utilize the scarce spectrum resources. In this paper, we propose an OSS scheme with quality-of-service (QoS) support for secondary users (SUs) in cognitive radio networks (CRNs). SUs are classified into the SUs with real-time traffic (RT-SUs) and the SUs with non-realtime traffic (NRT-SUs). The RT-SUs have higher terminatedpriority than NRT-SUs to guarantee the QoS requirements of RT-SUs. If a primary user (PU) tries to access the channel used by an RT-SU or a NRT-SU, the RT-SU can be terminated only when there is no idle channel, while the NRT-SU has to stop its transmission. We also use a random probability function to control the channel access of the SUs so that second users can achieve different successful access probability according to their payment. In addition, we use a six-dimensional Markov approach to derive system performance in terms of forced termination probability, blocking probability and system throughput for RT-SUs and NRT-SUs with different accesspriorities. Numerical results show that the proposed scheme can meet the QoS requirements of different SUs in the presence of guaranteeing the communication quality of PUs and achieve great throughput improvement compared to typical spectrum sharing schemes.
AB - Opportunistic spectrum sharing (OSS) has become an effective method to fully utilize the scarce spectrum resources. In this paper, we propose an OSS scheme with quality-of-service (QoS) support for secondary users (SUs) in cognitive radio networks (CRNs). SUs are classified into the SUs with real-time traffic (RT-SUs) and the SUs with non-realtime traffic (NRT-SUs). The RT-SUs have higher terminatedpriority than NRT-SUs to guarantee the QoS requirements of RT-SUs. If a primary user (PU) tries to access the channel used by an RT-SU or a NRT-SU, the RT-SU can be terminated only when there is no idle channel, while the NRT-SU has to stop its transmission. We also use a random probability function to control the channel access of the SUs so that second users can achieve different successful access probability according to their payment. In addition, we use a six-dimensional Markov approach to derive system performance in terms of forced termination probability, blocking probability and system throughput for RT-SUs and NRT-SUs with different accesspriorities. Numerical results show that the proposed scheme can meet the QoS requirements of different SUs in the presence of guaranteeing the communication quality of PUs and achieve great throughput improvement compared to typical spectrum sharing schemes.
KW - Cognitive radio networks
KW - Markov approach
KW - Opportunistic spectrum sharing
KW - Quality-of-service (QoS)
UR - https://www.scopus.com/pages/publications/84925275790
U2 - 10.1109/CSE.2014.258
DO - 10.1109/CSE.2014.258
M3 - 会议稿件
AN - SCOPUS:84925275790
T3 - Proceedings - 17th IEEE International Conference on Computational Science and Engineering, CSE 2014, Jointly with 13th IEEE International Conference on Ubiquitous Computing and Communications, IUCC 2014, 13th International Symposium on Pervasive Systems, Algorithms, and Networks, I-SPAN 2014 and 8th International Conference on Frontier of Computer Science and Technology, FCST 2014
SP - 1356
EP - 1361
BT - Proceedings - 17th IEEE International Conference on Computational Science and Engineering, CSE 2014, Jointly with 13th IEEE International Conference on Ubiquitous Computing and Communications, IUCC 2014, 13th International Symposium on Pervasive Systems, Algorithms, and Networks, I-SPAN 2014 and 8th International Conference on Frontier of Computer Science and Technology, FCST 2014
A2 - Liu, Xingang
A2 - El Baz, Didier
A2 - Hsu, Ching-Hsien
A2 - Kang, Kai
A2 - Chen, Weifeng
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th IEEE International Conference on Computational Science and Engineering, CSE 2014 - Jointly with 13th IEEE International Conference on Ubiquitous Computing and Communications, IUCC 2014, 13th International Symposium on Pervasive Systems, Algorithms, and Networks, I-SPAN 2014 and 8th International Conference on Frontier of Computer Science and Technology, FCST 2014
Y2 - 19 December 2014 through 21 December 2014
ER -