Asynchronous mac protocol based sensor node and data transmitting and receiving method through the same

A method of receiving data transmitted from a sending node in a sensor node is constituting a sensor network, the method comprising:

• transiting from an inactive state to an active state by receiving a Wake-Up frame transmitted from the sending node;
• transmitting a response packet in response to the Wake-Up frame to the sending node after the transition into the active state;
• and
• receiving data from the sending node which has received the response packet.

A sensor node comprising:

• a main transceiver to transmit/receive data;
• a Wake-Up transceiver to transit a state of the sensor node;
• and
• a micro-control unit, which transmits a Wake-Up frame to at least one receiving node through the Wake-Up transceiver such that the receiving node is activated from an inactive state into an active state, and transmits data to the activated receiving node through the main transceiver.