Hole Detection for Increasing Coverage in Wireless Sensor Network Using Triangular Structure

TL;DR

This paper proposes a method using triangular structures to detect and repair coverage holes in wireless sensor networks, enhancing area coverage with low computational complexity.

Contribution

It introduces a triangular oriented diagram approach for accurate hole detection and efficient mobile node relocation in WSN coverage enhancement.

Findings

Effective hole detection using HSTT with low computation

Accurate estimation of coverage hole size

Improved coverage repair through targeted mobile node movement

Abstract

The emerging technology of wireless sensor network (WSN) is expected to provide a broad range of applications, such as battlefield surveillance, environmental monitoring, smart spaces and so on. The coverage problem is a fundamental issue in WSN, which mainly concerns with a fundamental question: How well a sensor field is observed by the deployed sensors? Mobility is exploited to improve area coverage in a kind of hybrid sensor networks. The main objective for using mobile sensor nodes is to heal coverage holes after the initial network deployment, when designing a hole healing algorithm, the following issues need to be addressed. First, how to decide the existence of a coverage hole and how to estimate the size of a hole. Second, what are the best target locations to relocate mobile nodes to repair coverage holes? We use the triangular oriented diagram (HSTT) for aim to goal where its simple, have low calculation among construction and it is great to calculate the size of hole exactly .