CAJ | 학술논문

机器类通信（或 MTC 通信）定义为通过蜂窝网络进行数据传输的机器通信，作为未来泛在网络的重要组成部分，具有广阔的应用前景和市场潜力。为评估 MTC 接入时的网络性能，以3GPP 参考流量模型和 G/M/1队列模型的通解为基础，为MTC通信建立Beta/M/1队列模型；通过推导形状参数为任意正整数的Beta分布的概率生成函数的解析解，给出Beta/M/1模型性能评估的求解过程；利用数值分析，给出Beta/M/1模型的主要特征。为解决MTC接入时系统面临的过载问题，提出了3个解决办法，分别是：1）不同属性终端间聚类；2）改变 MTC终端到达时间间隔分布；3）分段均匀随机退避算法。所提Beta/M/1模型及分段均匀随机退避算法可作为物联网/MTC通信/海量终端入网性能分析及过载控制的参考模型。
궤기류통신（혹 MTC 통신）정의위통과봉와망락진행수거전수적궤기통신，작위미래범재망락적중요조성부분，구유엄활적응용전경화시장잠력。위평고 MTC 접입시적망락성능，이3GPP 삼고류량모형화 G/M/1대렬모형적통해위기출，위MTC통신건립Beta/M/1대렬모형；통과추도형상삼수위임의정정수적Beta분포적개솔생성함수적해석해，급출Beta/M/1모형성능평고적구해과정；이용수치분석，급출Beta/M/1모형적주요특정。위해결MTC접입시계통면림적과재문제，제출료3개해결판법，분별시：1）불동속성종단간취류；2）개변 MTC종단도체시간간격분포；3）분단균균수궤퇴피산법。소제Beta/M/1모형급분단균균수궤퇴피산법가작위물련망/MTC통신/해량종단입망성능분석급과재공제적삼고모형。
Machine type communications (MTC), defined as machine to machine communication over cellular mobile network, is an integral part of future ubiquitous network and has broad application prospects and market potentials. To carry out the performance analysis of network in context of MTC applications, a Beta/M/1 queue model was proposed for modeling the network with MTC applications and its full performance analysis were given out by deducing the analytical expression of Beta distribution’s moment generation function, in which the shape parameters of Beta distribution are as-sumed to be integer. In addition, to handle the congestion caused by mass concurrent data and signaling transmission from many MTC devices, three overload control measures were also presented, that is:1) inter-class grouping techniques;2) re-shaping the inter-arrival time distribution of MTC devices;3) segment-wise uniform back-off scheme. The Beta/M/1 mod-el and segment-wise uniform back-off scheme proposed here can be used as a preliminary model for different MTC ap-plication scenarios and serve as a fundamental traffic model and overload control method for future ubiquitous network.