Abstract: This paper analyzes and compares several typical existing data gathering protocols, and according to the actual application needs, designs a new data gathering protocol of Wireless Sensor Network(WSN)——Differentiated Service and Data Aggregation(DSDA). By constructing an agreement constitutes effective cluster-tree network topology, using differentiated service for the network data flow, and using network data aggregation technology for the data transmission process, DSDA improves the existing data gathering protocols. Simulation results with Matlab show that DSDA can reduce the overall energy dissipated in the network and prolong the network lifetime.

Key words: Wireless Sensor Network(WSN), data gathering, data aggregation, differentiated service, real-time

摘要： 对典型数据收集协议进行分析和比较，针对实际应用需求，设计一种基于区分服务和数据融合技术的数据收集协议DSDA。该协议通过构造高效的簇-树网络拓扑结构、对网络中数据流采用区分服务、在数据传输过程中采用网内数据融合技术，对现有协议进行改进。Matlab仿真测试证明，DSDA能有效节约能源，延长网络生命周期。

关键词: 无线传感器网络, 数据收集, 数据融合, 区分服务, 实时

CLC Number: 

• TP301.6