Research on Distributed Signal Processing Technology in Wireless Sensor Networks
Zhengnan Wu, Yuansheng Cheng, Jun Lu · Advances in engineering research/Advances in Engineering Research · 2016
Wireless sensor network is widely used in military, industrial, medical, transportation and other fields.As a product of the era in the future, wireless sensor network will play a more and more important role.This network is usually composed of sensor nodes that of low power consumption and low cost.Data source node is responsible for the collection and detection range, and multiple hops to pass data gathering node by way of relay node.However, because the sensor nodes in wireless sensor networks mainly limited through energy battery power supply, and the limited channel capacity limits the data rate in the whole network of transmission and distribution, it is a key issue that how to ensure the quality of service of wireless sensor network through effective allocation of network resources and queue scheduling. Wireless sensor networkRelative to the wireless network of the infrastructure, wireless networks that of no infrastructure has many unique advantages that it can go deep into the various and unknown environment, thus obtained the swift and violent development in recent years.So far, some relatively mature wireless network technology is more and deeper into every aspect of social life.At the same time, along with the wireless communication technology, embedded computing technology, information processing technology and the rapid development of sensor technology, some emerging, wireless network technology that needs further research emerged, such as wireless sensor networks, wireless Ad hoc networks and wireless Mesh networks.[1]Wireless sensor network (WSN) that set data acquisition, processing, transmission, communication as one has especially attracted a great deal of attention, which is becoming a hot spot of current research. Characteristics of the wireless sensor networkAs a new generation of effective access to information of wireless network, wireless sensor network (WSN) is made up of many sensor nodes deployed in monitoring area by self-organizing network system, the main purpose of their application is coverage area of perception object information through collaborative perception, collection and processing network and send it to the external users.In the entire network, sensor nodes with awareness and communication ability is the power from the power supply, perception, and memory processor unit and the corresponding communication components and software and so on several parts, general sensor nodes as shown in figure below.