This is a type of sensing, where sensing is done close to the phenomena of interest. Example: Wireless sensor network.
Published in Chapter:
Performance Evaluation of Quality of Service in IEEE 802.15.4-Based Wireless Sensor Networks
Sanatan Mohanty (Silicon Institute of Technology, India) and Sarat Kumar Patra (NIT Rourkela, India)
Copyright: © 2017
|Pages: 36
DOI: 10.4018/978-1-5225-0486-3.ch009
Abstract
Wireless Sensor Network (WSN) consists of many tiny, autonomous sensor nodes capable of sensing, computation and communication. The main objective of IEEE 802.15.4 based WSN standard is to provide low cost, low power and short range communication. Providing QoS in WSN is a challenging task due to its severe resource constraints in terms of energy, network bandwidth, memory, and CPU. In this chapter, Quality of Service (QoS) performance evaluation has been carried out for IEEE 802.15.4 networks based WSN star and mesh topology using routing protocols like AODV, DSR and DYMO in QualNet 4.5 simulator. Performance evaluations metrics like Packet Delivery Ratio (PDR), throughput, average end to end delay, energy per goodput bit, network lifetime of battery model and total energy consumption which includes transmission, reception, idle and sleep mode were considered for both the topology. From the simulation studies and analysis, it can be seen that on an average DSR and DYMO performs better than AODV for different traffic load rates.