MCN:基于冲突通知和占空比调节的多Radio无线传感器网络MAC协议

针对传感器网络中隐蔽终端问题和控制信道瓶颈问题,提出了一种基于冲突通知和占空比调节机制的多Radio MAC协议-MCN.MCN使用基于动态占空比凋节机制的控制Radio使用方案和敏感的冲突通知机制,在保证能量有效的前提下,通过多控制信道预约机制高效地解决了以上两个问题.为验证MCN中多控制信道预约和动态占空比睡眠以及冲突通知机制的性能,进行了模拟实验.实验结果表明:MCN能够适应数据负载的变化,与使用单个控制信道的MAC协议和MCN的简化版本相比,MCN提升了能量利用率和网络吞吐量.

MCN: a conflict notification and duty cycle adjustment based MAC protocol for multi-radio wireless sensor networks

Aimed at hidden terminal and control channel main problem, a conflict notification and multicontrol channel Reservation based MAC protocol were designed, called MCN. Using dynamic duty cycle adjustment based and sensitive conflict notification mechanism, MCN handles hidden terminal and control channel bottleneck problem with multi-control-channel reservation efficiently. To investigate the performance of multi control-channel reservation and dynamic duty cycle adjustment based and sensitive conflict notification mechanism, extensive simulations are conducted. The experimental results show that, MCN can adapt to data payload; Compared to single control channel based MAC protocols, the network throughput of MCN is high; Compared to MAC prQtocols without using sensitive conflict inform or dynamic duty cycle adjustment mechanism, the energy efficiency is high.