Study On Underwater Wireless Sensor Network

Abstract

The Earth is a water planet whose two-thirds are covered by water. Through rapid technical advances, underwater communication has become an increasingly growing sector where Underwater wireless sensor networks (UWSNs) are a class of emerging networks with variable and high delays in propagation, and restricted bandwidth available [4]. In this thesis we introduce a new Underwater Wireless Sensor Network platform to be used for long term monitoring unlike previous milestone research, follows a rather chronological organization within the given physical layer communication means i.e. acoustic communication, and Electromagnetic spectrum, particularly the Free space optical communication (through Laser or LED) underwater. For each part of UWSNs, we provide a comprehensive presentation of the basic concept, a discussion on the enhancements and variants on that concept. The objective of this study is to provide the big picture of underwater wireless sensor network while simultaneously focus on the details of development of the underwater communication technology (both theory and practice) and their feasibility for adopting in underwater wireless sensor networks. We also discuss various communication methodologies and challenges, underwater sensor network architecture, high level architecture of UWSNs, communication channel characteristics of protocol families for UWSNs, prototypes and relevant hardware for UWSNs and underwater communication, anticipated leverage architecture and discuss the possible competent modulation technique and suitable protocol.