Background & Objective:
Wireless Sensor Network (WSN) consist of huge number of tiny
senor nodes. WSN collects environmental data and sends to the base station through multi-hop wireless
communication. QoS is the salient aspect in wireless sensor networks that satisfies end-to-end
QoS requirement on different parameters such as energy, network lifetime, packets delivery ratio and
delay. Among them Energy consumption is the most important and challenging factor in WSN, since
the senor nodes are made by battery reserved that tends towards life time of sensor networks.
Methods:
In this work an Improve-Energy Aware Multi-hop Multi-path Hierarchy (I-EAMMH) QoS
based routing approach has been proposed and evaluated that reduces energy consumption and delivers
data packets within time by selecting optimum cost path among discovered routes which extends
network life time.
Results and Conclusion:
Simulation has been done in MATLAB on varying number of rounds 400-
2000 to checked the performance of proposed approach. I-EAMMH is compared with existing routing
protocols namely EAMMH and LEACH and performs better in terms of end-to-end-delay, packet delivery
ratio, as well as reduces the energy consumption 13%-19% and prolongs network lifetime 9%-
14%.
