Title :
CS-MAC: A Channel Stealing MAC protocol for improving bandwidth utilization in underwater wireless acoustic networks
Author :
Chen, Yen-Da ; Liu, Shu-Sheng ; Chang, Chia-Ming ; Shih, Kuei-Ping
Author_Institution :
Dept. of Comput. Inf. & Network Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
Abstract :
Due to the nature of water, instead of radio wave, sound wave is used for transmission in underwater wireless acoustic networks (UWANs). Based on the analysis of this paper, comparison to the performance in wireless ad hoc networks, hidden terminal problem and exposed terminal problem have a higher impact on that in UWANs. In this paper, a Channel Stealing MAC (CS-MAC) protocol is proposed not only to prevent hidden terminal problem but also to mitigate exposed terminal problem in UWANs. Some geometry theorems are provided for node to increase channel utilization in CS-MAC. Performance is evaluated by ns-2, and simulation results also verify that CS-MAC outperforms in channel utilization and transmission delay.
Keywords :
access protocols; acoustic waves; geometry; mobile ad hoc networks; underwater acoustic communication; wireless channels; CS-MAC protocol; bandwidth utilization; channel stealing MAC protocol; channel utilization; exposed terminal problem; geometry theorem; hidden terminal problem; sound wave; transmission delay; underwater wireless acoustic network; wireless ad hoc network; IEEE 802.11 Standards; Media Access Protocol; Propagation delay; Receivers; Throughput; Underwater acoustics;
Conference_Titel :
OCEANS 2011
Conference_Location :
Waikoloa, HI
Print_ISBN :
978-1-4577-1427-6
