CSMA-MPS: a minimum preamble sampling MAC protocol for low power wireless sensor networks

Medium access protocols for wireless sensor networks are especially challenging because the receiver of a sensor node in a distributed multi-hop network must be turned off most of the time to save energy. Existing solutions either try to solve this problem with a very low power wake-up receiver or by different means of synchronization using methods such as preamble sampling or periodic synchronisations. Here presented CSMA-MPS approach is a MAC layer protocol, which is optimized for low energy consumption by a very efficient wake-up mechanism. A second difference is the use of radio transceivers with a high over the air bit rate of 1 Mbps and short transmit and receive turn-around times. This enables the proposed protocol to operate much more efficiently compared to low to medium bit-rate transceivers used in traditional sensor networks. Simulations and experimental results with existing off-the-shelf hardware show that the average power consumption of the transceiver alone can be as low as 35 /spl mu/W by forwarding packets at a rate of 10 packets per minute and by guaranteeing a hop-to-hop delay of 400 ms.

[1]  Christian C. Enz,et al.  Poster abstract: wiseMAC, an ultra low power MAC protocol for the wiseNET wireless sensor network , 2003, SenSys '03.

[2]  Amre El-Hoiydi,et al.  Aloha with preamble sampling for sporadic traffic in ad hoc wireless sensor networks , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[3]  Mani B. Srivastava,et al.  Optimizing Sensor Networks in the Energy-Latency-Density Design Space , 2002, IEEE Trans. Mob. Comput..

[4]  William J. Kaiser,et al.  Wireless Integrated Network Sensors Next Generation , 2004 .

[5]  Jan M. Rabaey,et al.  Low power distributed MAC for ad hoc sensor radio networks , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[6]  Christian Enz,et al.  wiseMAC, an ultra low power MAC protocol for the wiseNET wireless sensor network. , 2003 .

[7]  Jan M. Rabaey,et al.  AN ULTRA-LOW POWER AND DISTRIBUTED ACCESS PROTOCOL FOR BROADBAND WIRELESS SENSOR NETWORKS , 2001 .

[8]  Deborah Estrin,et al.  An energy-efficient MAC protocol for wireless sensor networks , 2002, Proceedings.Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies.

[9]  Jan M. Rabaey,et al.  PicoRadio Supports Ad Hoc Ultra-Low Power Wireless Networking , 2000, Computer.

[10]  B. Warneke,et al.  Smart dust mote forerunners , 2001, Technical Digest. MEMS 2001. 14th IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.01CH37090).

[11]  David E. Culler,et al.  A transmission control scheme for media access in sensor networks , 2001, MobiCom '01.

[12]  Jan M. Rabaey,et al.  Wireless beyond the third generation-facing the energy challenge , 2001, ISLPED'01: Proceedings of the 2001 International Symposium on Low Power Electronics and Design (IEEE Cat. No.01TH8581).