PCSMAC: A power controlled sensor-MAC protocol for wireless sensor networks


Nar P., Cayirci E.

2nd European Workshop on Wireless Sensor Networks, İstanbul, Turkey, 31 January - 02 February 2005, pp.81-92 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/ewsn.2005.1462001
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.81-92

Abstract

In this paper a new power controlled contention-based MAC protocol is introduced for wireless sensor networks where sensor nodes can adjust their transmission power level on a per-frame basis. The main contribution Of Our work is to enable power controlled transmission of RTS, CTS, DATA and ACK frames while preserving the collision and overhearing avoidance properties of a MAC protocol where these frames are transmitted at the maximum power. Experimental results show that the power controlled sensor MAC protocol reduces the energy consumption by 30-99% comparing to the conventional sensor MAC protocol.