Low Power MAC Protocol Design of an Efficient Preamble Exploiting Virtual Synchronization Scheme for Wireless Sensor Networks
Sung-Hun Lee, Sewook Hwang, Hyuk-Joon Lee, Hyung-Geun Lee · 2010
The researches about energy efficieny of wireless sensor MAC protocol is an issue in present days. Therefore, MAC and routing protocols for reducing energy consumption at sensor nodes is needed. In this study, a low-power MAC protocol for sensor network is proposed, which in based on X-MAC by exploiting virtual synchronization. The virtual synchronization technique lets senders postpone packet transmission until receivers' wake-up time, so that senders transmit only one or two short preambles. Using NS-2, a proposed MAC protocol improve the energy efficiency by 10% compared with the X-MAC protocol.