Title :
Distributed MAC protocols for UWB ad hoc and sensor networks
Author :
August, Nathaniel J. ; Chung, WooCheol ; Ha, Dong Sam
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
Abstract :
Large ad hoc and sensor networks impose stringent constraints on cost and energy efficiency. Impulse-based ultra wideband (I-UWB) is an attractive radio technology, and we have developed four medium access control (MAC) protocols to support I-UWB radios in such networks. The four MAC protocols are multichannel ALOHA (M-ALOHA), multichannel pulse sense multiple access (M-PSMA), PSMA with collision avoidance (PSMA/CA), and busy signal multiple access (BSMA). These MAC protocols permit random, distributed medium access with no central point of failure. This paper characterizes the energy efficiency, throughput, and delay of the four protocols. The results suggest appropriate application scenarios for each of the protocols.
Keywords :
access protocols; ad hoc networks; cellular radio; multi-access systems; ultra wideband communication; wireless sensor networks; UWB ad hoc networks; busy signal multiple access; collision avoidance; distributed MAC protocols; impulse-based ultrawideband networks; medium access control; multichannel ALOHA; multichannel pulse sense multiple access; sensor networks; Access protocols; Centralized control; Costs; Delay; Energy efficiency; Media Access Protocol; Narrowband; Space vector pulse width modulation; Throughput; Transceivers;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615206
