Performance and Detection of M-ary Frequency Shift Keying in Triple Layer Wireless Sensor Network

TL;DR

This paper introduces a triple layer wireless sensor network utilizing M-ary FSK modulation and selection combining, demonstrating its effectiveness and cost-efficiency in detecting M-ary environmental events through simulations.

Contribution

It presents a novel triple layer WSN architecture with MFSK and SC diversity, analyzing its performance for reliable M-ary event detection in sensor networks.

Findings

System achieves high detection accuracy with varied modulation levels.

Selection combining improves system robustness over Rayleigh fading channels.

The architecture is cost-effective and suitable for real-world environmental monitoring.

Abstract

This paper proposes an innovative triple layer Wireless Sensor Network (WSN) system, which monitors M-ary events like temperature, pressure, humidity, etc. with the help of geographically distributed sensors. The sensors convey signals to the fusion centre using M-ary Frequency Shift Keying (MFSK)modulation scheme over independent Rayleigh fading channels. At the fusion centre, detection takes place with the help of Selection Combining (SC) diversity scheme, which assures a simple and economical receiver circuitry. With the aid of various simulations, the performance and efficacy of the system has been analyzed by varying modulation levels, number of local sensors and probability of correct detection by the sensors. The study endeavors to prove that triple layer WSN system is an economical and dependable system capable of correct detection of M-ary events by integrating frequency diversity together with antenna diversity.