CAJ | 학술논문

现有的单信道和多信道介质访问控制(MAC)协议不能很好地满足大规模数据收集应用场合对数据速率和时延的要求。为解决该问题，提出一种基于多信道的快速数据收集MAC协议，结合多信道和时分多址复用消除节点间的干扰，在节点进行时槽分配时充分考虑节点半双工通信方式和数据收集公平性，尽可能地在空间上实现信道的复用，提高数据传输的并行性。在时序调度过程中，引入网络时延能耗平衡因子，实现不同应用场合对时延和能耗的平衡调节，增强协议的灵活性。仿真结果表明，该协议在大规模数据收集应用中具有高吞吐量、低时延的特性。
현유적단신도화다신도개질방문공제(MAC)협의불능흔호지만족대규모수거수집응용장합대수거속솔화시연적요구。위해결해문제，제출일충기우다신도적쾌속수거수집MAC협의，결합다신도화시분다지복용소제절점간적간우，재절점진행시조분배시충분고필절점반쌍공통신방식화수거수집공평성，진가능지재공간상실현신도적복용，제고수거전수적병행성。재시서조도과정중，인입망락시연능모평형인자，실현불동응용장합대시연화능모적평형조절，증강협의적령활성。방진결과표명，해협의재대규모수거수집응용중구유고탄토량、저시연적특성。
Many single-channel and mufti-channel Medium Access Control(MAC) protocol can not satisfy the data rate and delay for large-scale data collection applications. To resolve this problem, a new multi-channel-based fast data collection MAC protocol is proposed, which takes advantage of mulch-channel and Time Division Multiple Access(TDMA) to eliminate interference between nodes, considers half-duplex communication mode and fairness of data collection during the time-slot assigning, and increases parallel transmissions by maximizing the spatial channel reuse. During the process of timing scheduling, the introduction of time delay and energy consumption balance factor enhances the flexibility of protocol, and it can be applied to different applications by adjusting the balance between time delay and energy consumption. Simulation results show that this protocol has the performance of high throughput and low time delay for large-scale data collection applications.