Please use this identifier to cite or link to this item:
|Title:||Aloha-based MAC protocols with collision avoidance for underwater acoustic networks|
|Authors:||Chirdchoo, N. |
|Citation:||Chirdchoo, N., Soh, W.-S., Chua, K.C. (2007). Aloha-based MAC protocols with collision avoidance for underwater acoustic networks. Proceedings - IEEE INFOCOM : 2271-2275. ScholarBank@NUS Repository. https://doi.org/10.1109/INFCOM.2007.263|
|Abstract:||Unlike terrestrial networks that mainly rely on radio waves for communications, underwater networks utilize acoustic waves, which have comparatively lower loss and longer range in underwater environments. However, the use of acoustic waves pose a new research challenge in the networking area. While existing network schemes for terrestrial sensor networks are mainly designed for negligible propagation delay and high data rate, underwater acoustic communications are characterized by high propagation delay and low data rate. These terrestrial schemes, when directly applied to the underwater channel, will under-utilize its already limited capacity. We investigate how the underwater channel's throughput may be enhanced via medium access control (MAC) techniques that consider its unique characteristics. Specifically, we study the performance of Aloha-based protocols in underwater networks, and propose two enhanced schemes, namely, Aloha with collision avoidance (Aloha-CA), and Aloha with advance notification (Aloha-AN), which are capable of using the long propagation delays to their advantage. Simulation results have shown that both schemes can boost the throughput by reducing the number of collisions, and, for the case of Aloha-AN, also by significantly reducing the number of unproductive transmissions. © 2007 IEEE.|
|Source Title:||Proceedings - IEEE INFOCOM|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Nov 16, 2018
WEB OF SCIENCETM
checked on Oct 31, 2018
checked on Nov 17, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.