A control channel reserving based MAC protocol for cognitive radio networks

作者：Zhang Li^*; Zheng Guo Xin; Jia Dong Li; Zhu Ya Zhou

来源：Journal of Beijing University of Posts and Telecommunications, 2010, 33(4): 79-82+92.

• Channel reserving
• Channel state
• Cognitive radio network
• Control channels
• Data channels
• End to end delay
• MAC protocol
• Media access control protocol
• Multi-channel
• Network throughput
• Sub-frame
• Wireless channel

A multi-channel adaptive media access control (MAC) protocol based on the concepts of competing control channel (CCC) and reserving control channel (RCC) is presented. In order to access wireless channels, cognitive users reserve the sub-frame of RCC through CCC that obligates the access opportunities for different traffic. The users apply the required bandwidth using RCC based data channel. The channel is distributed and recycled by updating a channel state table. Simulations show that the proposed protocol can effectively schedule the accessing of users and exhibit good scalability. It significantly reduces the probability of collision and congestion, thereby improves the end-to-end delay and network throughput.

• 出版日期2010
• 单位上海大学