Title :
Multi-modal MAC design for energy-efficient wireless networks
Author :
Goel, Siddhartha K. ; ElBatt, Tamer ; Srivastava, Mani
Author_Institution :
Lab. of Inf. & Syst. Sci., HRL Lab., Malibu, CA
Abstract :
In this paper we explore the design of multi-modal MAC for wireless ad hoc and sensor networks that dynamically adapt its behavior in order to minimize the energy to delivery ratio under a wide variety of network loads. The prime motivation is to balance the inherent trade-off between the energy wasted in collisions and the energy expended by collision avoidance handshake mechanisms. Towards this objective, the study goes through two phases. First, we explore the space of MAC modes subject to the constraint that different access schemes can inter-operate. Accordingly, we limit our attention to modes within the non-slotted random access paradigm. Second, we analyze, with the aid of detailed network simulations, the energy performance trade-offs of four variations of the CSMA/CA access scheme. Initial results reveal interesting observations related to the energy/delivery contribution of channel reservation and single-hop acknowledgment packets under a wide variety of temporal network loads
Keywords :
ad hoc networks; carrier sense multiple access; wireless sensor networks; CSMA/CA access scheme; collision avoidance handshake mechanisms; energy-efficient wireless networks; multimodal MAC design; nonslotted random access paradigm; sensor networks; wireless ad hoc; Access protocols; Collision avoidance; Energy efficiency; Laboratories; Message passing; Multiaccess communication; Space exploration; Time division multiple access; Wireless networks; Wireless sensor networks;
Conference_Titel :
Mobile Adhoc and Sensor Systems Conference, 2005. IEEE International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-9465-8
DOI :
10.1109/MAHSS.2005.1542788