UA-MAC: An Underwater Acoustic Channel Access Method for Dense Mobile Underwater Sensor Networks
نویسندگان
چکیده
منابع مشابه
Multi-channel MAC Protocols for Underwater Acoustic Sensor Networks
Medium Access Control(MAC) protocol is quite important to the performance of underwater sensor networks(UWSNs). Recently, much research work has been done on the design of new MAC protocols for UWSNs to improve throughput and energy efficiency [1]–[3]. All these work is for the singlechannel network scenario. However, the fast development of underwater acoustic communication technologies enable...
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The focus of this paper is on the multi-channel MAC protocols for underwater acoustic sensor networks. We model and analyze two generalized multi-channel MAC protocols: multi-channel access with Aloha on a dedicated control channel and multi-channel access with RTS/CTS on a dedicated control channel. Though the long delay feature of underwater acoustic channels drastically increases the complex...
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The underwater acoustic channel has many fundamentally different properties to the conventional radio-based wireless channel. Communication is changed drastically by acoustic propagation speeds that are five orders of magnitude slower than radio. This, coupled with bandwidth limitations, high transmit energy cost, complex multi-path effects, and high bit-error rates make the issue of medium acc...
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The medium access control (MAC) protocol design of underwater acoustic sensor networks (UWASNs) faces many challenges: the power limitation at nodes, long propagation delay, low data rates, etc. These challenges of underwater acoustic channels result in the unsuitable usage of terrestrial networks MAC protocol in UWASNs. Moreover, the long propagation delay causes a serious problem for the MAC ...
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underwater acoustic wireless sensor network (uawsn) use acoustic signalsto transmit data. acoustic signals in underwater environment have high bit errorrate, long propagation delay and limited bandwidth. another constraint in uwasnis energy. due to these constraints, design of energy and bandwidth efficient andpropagation delay aware mac protocol is a great challenge in uwasn.underwater sensor ...
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ژورنال
عنوان ژورنال: International Journal of Distributed Sensor Networks
سال: 2014
ISSN: 1550-1477,1550-1477
DOI: 10.1155/2014/374028