A Survey on Delay-Aware Network Structure for Wireless Sensor Networks with Consecutive Data Collection Processes

摘要

A Wireless Sensor Network (WSN) consists of spatially distributed autonomoussensors to monitor physical or environmental conditions, such as temperature,sound, pressure,etc. In sensing applications, data packets are flowing fromsensor nodes to base station. In data collection processes, bottom up approachis used. In bottom up approach, all nodes send their sensed data packets tobase station directly. In this approach will lead to increased delay, whichwill lead to higher energy consumption. To reduce the energy consumption ofsensor nodes,Clustering Algorithm and Low-Energy Adaptive Clustering Hierarchy(LEACH) are being used. Efficient gathering in Wireless Sensor informationsystems, Power Efficient Gathering in Sensor Information System (PEGASIS) isbeing used. There are lot of research issues in Wireless Sensor Networks suchas delay, lifetime of network, energy dissipation which needs to be resolved.