Title :
A Distributed OFDMA Medium Access Control for Underwater Acoustic Sensors Networks
Author :
Bouabdallah, Fatma ; Boutaba, Raouf
Author_Institution :
Sch. of Comput. Sci., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
In this paper, we propose UW-OFDMAC, a distributed Medium Access Control (MAC) protocol tuned for Under-Water Acoustic Sensor Networks (UW-ASNs). It is a transmitter based Orthogonal Frequency Division Multiple Access (OFDMA)scheme that integrates an original power and OFDMA parameters self-assignment algorithm to set the optimal transmit power, subcarrier spacing and guard interval duration. UW-OFDMAC aims at achieving two objectives, namely, guarantee high bandwidth efficiency and low energy consumption. Simulation results show that UW-OFDMAC outperforms the basic OFDMA protocol tuned for the underwater environment.
Keywords :
OFDM modulation; access protocols; frequency division multiple access; underwater acoustic communication; wireless sensor networks; UW-ASN; UW-OFDMAC protocol; distributed MAC protocol; distributed OFDMA medium access control; distributed medium access control protocol; guard interval duration; orthogonal frequency division multiple access; subcarrier spacing; transmitter-based OFDMA scheme; underwater acoustic sensors networks; Bandwidth; Energy consumption; Media Access Protocol; OFDM; Peer to peer computing; Sensors;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5962515
