Analysis of energy model and QoS in wireless sensor network under different modulation schemes

Wireless sensor networks (WSNs) have gained importance in the last few years, in practical and research fields. Nowadays WSN is used in many applications such as Disaster relief applications, environment control, home automation, facility management and habitat monitoring etc. In WSN, nodes are deployed densely in any geographical region used to perform sensing. Since in WSN nodes are powered by limited source of batteries and energy scavenging is very difficult, so the network life time is reduced. Therefore energy efficient operation in WSN is very necessary. In this paper we have focused on energy model i.e. MICA MOTE and MICA Z and modulation schemes. We have created a star topology sensor scenario using Qualnet 6.1 network simulator. This paper comparatively analyzes the energy model and modulation schemes on the basis of energy efficiency and QoS to find out which energy model and modulation schemes provide best services. The metrics used in Performance evaluation are energy consumption, throughput, average jitter, end to end delay, and signal received but with error using Qualnet 6.1 simulator.