CAJ | 학술논문

提出了一种新的自适应混合MAC协议TC2-MAC。该协议采用了基于二叉树结构的时隙块分配策略和基于时隙约束的CSMA/CA竞争接入方式，能够为不同传感器节点或不同类型业务的差异性QoS需求提供良好支持，并能够通过灵活的信息调度机制改善信道接入公平性，提高网络效率。理论分析和仿真结果表明：与传统基于 TDMA机制的 MAC 协议相比，TC2-MAC 对网络业务流量及拓扑结构的变化均具有更好的自适应性。
제출료일충신적자괄응혼합MAC협의TC2-MAC。해협의채용료기우이차수결구적시극괴분배책략화기우시극약속적CSMA/CA경쟁접입방식，능구위불동전감기절점혹불동류형업무적차이성QoS수구제공량호지지，병능구통과령활적신식조도궤제개선신도접입공평성，제고망락효솔。이론분석화방진결과표명：여전통기우 TDMA궤제적 MAC 협의상비，TC2-MAC 대망락업무류량급탁복결구적변화균구유경호적자괄응성。
A novel adaptive hybrid medium access control (MAC) protocol TC2-MAC has been proposed. The protocol used binary tree based time-slot-block (TSB) allocation strategy and time slot constrained carrier sense multiple access with collision avoidance (CSMA/CA) method to ensure heterogeneous sensor nodes or different types of traffic obtain personalized quality of service (QoS). In addition, it provided flexible information scheduling mechanism to improve fairness of channel access and enhance network efficiency enable. Results show that TC2-MAC has significant adaptabil-ity to the change of network traffic and network topology compared with traditional time division multiple access (TDMA) based MAC.