Channel-Hopping-Based Communication Rendezvous in Cognitive Radio Networks
Cognitive radio (CR) networks have an ample but dynamic amount of spectrum for communications. Communication rendezvous in CR networks is the process of establishing a control channel between radios before they can communicate. Designing a communication rendezvous protocol that can take advantage of...
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| Veröffentlicht in: | IEEE/ACM transactions on networking 2014-06, Vol.22 (3), p.889-902 |
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| creator | Zhang, Yifan Yu, Gexin Li, Qun Wang, Haodong Zhu, Xiaojun Wang, Baosheng |
| description | Cognitive radio (CR) networks have an ample but dynamic amount of spectrum for communications. Communication rendezvous in CR networks is the process of establishing a control channel between radios before they can communicate. Designing a communication rendezvous protocol that can take advantage of all the available spectrum at the same time is of great importance, because it alleviates load on control channels, and thus further reduces probability of collisions. In this paper, we present ETCH, efficient channel-hopping-based MAC-layer protocols for communication rendezvous in CR networks. Compared to the existing solutions, ETCH fully exploits spectrum diversity in communication rendezvous by allowing all the rendezvous channels to be utilized at the same time. We propose two protocols, SYNC-ETCH, which is a synchronous protocol assuming CR nodes can synchronize their channel hopping processes, and ASYNC-ETCH, which is an asynchronous protocol not relying on global clock synchronization. Our theoretical analysis and ns-2-based evaluation show that ETCH achieves better performances of time-to-rendezvous and throughput than the existing work. |
| doi_str_mv | 10.1109/TNET.2013.2270443 |
| format | Article |
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Communication rendezvous in CR networks is the process of establishing a control channel between radios before they can communicate. Designing a communication rendezvous protocol that can take advantage of all the available spectrum at the same time is of great importance, because it alleviates load on control channels, and thus further reduces probability of collisions. In this paper, we present ETCH, efficient channel-hopping-based MAC-layer protocols for communication rendezvous in CR networks. Compared to the existing solutions, ETCH fully exploits spectrum diversity in communication rendezvous by allowing all the rendezvous channels to be utilized at the same time. We propose two protocols, SYNC-ETCH, which is a synchronous protocol assuming CR nodes can synchronize their channel hopping processes, and ASYNC-ETCH, which is an asynchronous protocol not relying on global clock synchronization. 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Communication rendezvous in CR networks is the process of establishing a control channel between radios before they can communicate. Designing a communication rendezvous protocol that can take advantage of all the available spectrum at the same time is of great importance, because it alleviates load on control channels, and thus further reduces probability of collisions. In this paper, we present ETCH, efficient channel-hopping-based MAC-layer protocols for communication rendezvous in CR networks. Compared to the existing solutions, ETCH fully exploits spectrum diversity in communication rendezvous by allowing all the rendezvous channels to be utilized at the same time. We propose two protocols, SYNC-ETCH, which is a synchronous protocol assuming CR nodes can synchronize their channel hopping processes, and ASYNC-ETCH, which is an asynchronous protocol not relying on global clock synchronization. Our theoretical analysis and ns-2-based evaluation show that ETCH achieves better performances of time-to-rendezvous and throughput than the existing work.</description><subject>Algorithm design and analysis</subject><subject>Channel hopping</subject><subject>Channels</subject><subject>Cognitive radio</subject><subject>Collisions</subject><subject>Communication</subject><subject>communication rendezvous</subject><subject>dynamic spectrum access</subject><subject>Dynamics</subject><subject>Etching</subject><subject>IEEE transactions</subject><subject>Networks</subject><subject>Protocol</subject><subject>Protocols</subject><subject>Rendezvous</subject><subject>Schedules</subject><subject>Synchronization</subject><subject>Synchronous</subject><subject>Throughput</subject><issn>1063-6692</issn><issn>1558-2566</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkMFOwzAMhisEEmPwAIhLJS5cOhI3SZsjTIOBpiFN41xlrTsy2qQ07RA8PamGOHCyJX-2_H9BcEnJhFIib9fL2XoChMYTgIQwFh8FI8p5GgEX4tj3RMSREBJOgzPndsSTBMQoeJ6-KWOwiua2abTZRvfKYRFObV33Rueq09aEKzQFfu9t70Jt_GxrdKf3GK5UoW24xO7Ttu_uPDgpVeXw4reOg9eH2Xo6jxYvj0_Tu0WUxxK6CNWGiqKEDYJMGCkVixNkJQeqCl5uKCEKARhL0iLlnAAQCVLKBEQZE-JjjIObw92mtR89ui6rtcuxqpRB_2LmY0uRSs4G9PofurN9a_x3nmKC0DQR3FP0QOWtda7FMmtaXav2K6MkG-xmg91ssJv92vU7V4cdjYh_vPCyKdD4B9kGdDE</recordid><startdate>20140601</startdate><enddate>20140601</enddate><creator>Zhang, Yifan</creator><creator>Yu, Gexin</creator><creator>Li, Qun</creator><creator>Wang, Haodong</creator><creator>Zhu, Xiaojun</creator><creator>Wang, Baosheng</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Communication rendezvous in CR networks is the process of establishing a control channel between radios before they can communicate. Designing a communication rendezvous protocol that can take advantage of all the available spectrum at the same time is of great importance, because it alleviates load on control channels, and thus further reduces probability of collisions. In this paper, we present ETCH, efficient channel-hopping-based MAC-layer protocols for communication rendezvous in CR networks. Compared to the existing solutions, ETCH fully exploits spectrum diversity in communication rendezvous by allowing all the rendezvous channels to be utilized at the same time. We propose two protocols, SYNC-ETCH, which is a synchronous protocol assuming CR nodes can synchronize their channel hopping processes, and ASYNC-ETCH, which is an asynchronous protocol not relying on global clock synchronization. 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| subjects | Algorithm design and analysis Channel hopping Channels Cognitive radio Collisions Communication communication rendezvous dynamic spectrum access Dynamics Etching IEEE transactions Networks Protocol Protocols Rendezvous Schedules Synchronization Synchronous Throughput |
| title | Channel-Hopping-Based Communication Rendezvous in Cognitive Radio Networks |
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