Augmenting QoS in Outdoor Wireless Sensor Networks through Frequency Optimization

Wireless sensor networks are immensely used for environmental monitoring, landslide detection, disaster management etc. These networks are mostly deployed in outdoor scenarios. In a typical outdoor scenario the propagation of the radio signal can be affected by several factors like the rainfall, foliage, path loss effect and fading effect. The outdoor wireless sensor network can experience QoS variation due to these environmental catastrophes. The QoS can be affected by many factors like packet delivery rate, jitter, latency, delay etc. The performance of a wireless sensor network is mostly characterized with the packet delivery rate. Hence we aim to maximize the packet delivery rate by minimizing packet error rate for improving the QoS. This paper accords an optimized frequency selection for any outdoor wireless sensor networks which can wane the packet error rate at any worst environmental conditions through real data analysis.