An Energy-efficient MAC Protocol for Wireless Body Area Networks

A WBAN node may be working in two monitoring modes, all-transmit mode and few-transmit mode. Every mode has its own usage scenarios. To effectively prolong its lifetime, a node should be working in few-transmit mode as much as possible. An adaptive medium access control (MAC) protocol is specially designed to serve the nodes working in few-transmit mode. Experimental results show the proposed MAC protocol can improve the energy efficiency and satisfy the data delivery delay demands simultaneously.