Code-Folding Scheme for Energy Efficient Cooperative Communications in Wireless Sensor Networks

Abstract

In order to provide high-efficiency monitoring for utilities consumption, a novel cooperative communication is investigated for Wireless Sensor Networks to overcome channel imperfections in an energy-efficient way. By matching dynamic network topologies with distributed graph network coding, a Code-Folding scheme is proposed to decrease the number of required cooperative terminals in ANCC. By converting original parallel bits transmission from a large number of nodes to serial packets transmission that relies on only a few nodes, The Code-Folding ANCC scheme can reform the cooperative scheme in an energy efficient way. Based on the Code-Folding ANCC scheme, Energy Efficient Cooperative Communications can achieve the same coding gain with a few sensor nodes, which can significantly improve transmission range, linkage reliability and energy efficiency. With experiments in an Energy Efficient Cooperative Communication testbed, the improvement of energy efficiency in the Energy Efficient Cooperative Communication network is verified.

Keywords

• Wireless sensor networks
• Energy efficient
• Cooperative communication