Energy-Efficient Tree-Based Multipath Power Control for Underwater Sensor Networks

Abstract

Due to the use of acoustic channels with limited available bandwidth, Underwater Sensor Networks (USNs) often suffer from significant performance restrictions such as low reliability, low energy-efficiency, and high end-to-end packet delay. The provisioning of reliable, energy-efficient, and low-delay communication in USNs has become a challenging research issue. In this paper, we take noise attenuation in deep water areas into account and propose a novel layered multipath power control (LMPC) scheme in order to reduce the energy consumption as well as enhance reliable and robust communication in USNs. To this end, we first formalize an optimization problem to manage transmission power and control data rate across the whole network. The objective is to minimize energy consumption and simultaneously guarantee the other performance metrics. After proving that this optimization problem is NP-complete, we solve the key problems of LMPC including establishment of the energy-efficient tree and management of energy distribution and further develop a heuristic algorithm to achieve the feasible solution of the optimization problem. Finally, the extensive simulation experiments are conducted to evaluate the network performance under different working conditions. The results reveal that the proposed LMPC scheme outperforms the existing mechanism significantly.

Position adjustment–based location error–resilient geo‐opportunistic routing for void hole avoidance in underwater sensor networks

“…Xu et al present a layered approach for reliable and energy‐efficient data transmission in USNs. A binary tree is established from source to destination and controls propagation power at each hop.…”

Ubiquitous Sensor Networks and Image Processing Based Environmental Monitoring System for Fire Safety

“…Note that this standard supports lowpower system and 250 kbps transmission rate at maximum. Recently, IP-USN based on IPv6 has been used [1][2][3][4][5][6].…”

ELT: Energy-Level-Based Hybrid Transmission in Underwater Sensor Acoustic Networks

“…The multi-path communications of power control [5], [6] were studied on the UASNs. This paper analyzes the characteristic of energy consumption in data transmission and receiving, proposes a route tree building algorithm and the energy level based hybrid transmission mechanism.…”

“…Compared with the traditional approach to ocean-bottom or oceancolumn monitoring, UASNs can be used to collect real-time information in a given area so as to do analysis and optimization [1].Major challenges in the design of UASNs include the limited battery power, severely attenuated channel, long propagation delay, and so on [2]. The new protocols [4]- [6] focus on the unique character in underwater acoustic channels [3].…”