CAJ | 학술논문

提出了一种基于转发概率的动态数据转发策略:FPAD(forwarding probability-based adaptive data delivery algorithm).FPAD适用于由不同类型传感器节点构成的可监测不同对象的异构延迟容忍移动传感器网络 HDTMSN (heterogeneous delay tolerant mobile sensor network).在这种网络中,各类节点拥有不同的通信能力、运动速度与消息存储能力,并且获取的数据消息具有不同的大小和不同的延迟容忍度.针对异构网络的特点,FPAD 一方面根据节点能量消耗和消息传输延迟计算出节点的传输概率和转发概率,并以此进行数据消息的传输;另一方面,提出根据消息当前的延迟容忍度作为消息丢弃依据的消息队列管理机制.仿真实验结果表明,与现有的几种数据传输算法相比,FPAD的数据传输成功率更高、传输延迟更小,而且网络寿命相对较长.
제출료일충기우전발개솔적동태수거전발책략:FPAD(forwarding probability-based adaptive data delivery algorithm).FPAD괄용우유불동류형전감기절점구성적가감측불동대상적이구연지용인이동전감기망락 HDTMSN (heterogeneous delay tolerant mobile sensor network).재저충망락중,각류절점옹유불동적통신능력、운동속도여소식존저능력,병차획취적수거소식구유불동적대소화불동적연지용인도.침대이구망락적특점,FPAD 일방면근거절점능량소모화소식전수연지계산출절점적전수개솔화전발개솔,병이차진행수거소식적전수;령일방면,제출근거소식당전적연지용인도작위소식주기의거적소식대렬관리궤제.방진실험결과표명,여현유적궤충수거전수산법상비,FPAD적수거전수성공솔경고、전수연지경소,이차망락수명상대교장.
This paper proposes a data gathering algorithm—FPAD (forwarding probability-based adaptive data delivery algorithm). FPAD applies to HDTMSN (heterogeneous delay tolerant mobile sensor network), which is composed by different nodes monitoring different objects. In such networks, nodes of different kinds have different communication capabilities, motor speed, and information storage capacity, and the data obtained have different sizes and delay tolerances. In terms of the characteristics of HDTMSN, FPAD, on the one hand, calculates nodes transmitting and forwarding probability, and then forwards messages according to nodes energy consumption and message transmission delay. On the other hand, it proposes message queue management mechanism based on the current delay tolerance of the message. Simulation results show that compared with the existing algorithm of data transmission, FPAD has a higher delivery ratio and smaller delivery delay, and it has a relatively longer network lifetime.