In this paper, we propose an efficient geo-routing aware MAC protocol (GOAL) for underwater acoustic networks. It smoothly integrates self-adaptation based REQ/REP handshake, geographic cyber carrier sensing, and implicit ACK to perform combined channel reservation and next-hop selection. As a result, it incorporates the advantages of both a geo-routing protocol and a reservation-based medium a...

In this study, we introduce a new media access control (MAC) protocol that adaptively changes time division multiple access (TDMA) frame size and slot duration in order to upgrade performance of underwater sensor networks. Throughput of underwater sensor networks is very low compared to a radio frequency (RF) network; the reason is a very long propagation delay and a very low bit rate. To solve...

Wireless communication is very fast becoming the most frequently used form of communication. Ad-Hoc networks can be easily set up anywhere without any infrastructure cost and its mobility adds to its advantage. Hence with increase in its demand the quality of the setup comes under scrutiny, hence calling for its development. This paper presents the concept of Cooperative MAC protocols. Cooperat...

In recent years underwater wireless sensor networks (UWSNs) have emerged as one of the most popular researched areas in the networking field due to its numerous applications in ocean exploration, underwater surveillance and pollution detection. With specific characteristics such as higher delay in transmission, continuously moving nodes, limited storage and battery, most of the routing protocol...

The Mobile adhoc network (MANET), is a collection of mobile wireless nodes that self-organize without the aid of centralized control or any preexisting infrastructure. This paper presents the effect of MAC protocols (MAC 802.11, MAC/TDMA) on various routing protocols in order to choose the best routing protocol and MAC protocol to enhance the performance. The simulation compared three adhoc rou...

Underwater wireless optical communication has been used for establish a link between mobile vehicles and/or fixed nodes because light, especially in the blue/green region, allows to achieve higher data-rate than acoustical or electromagnetic waves for moderate distances. The here proposed work has the aim to pave the way for diffuse optical communication allowing to support optical communicatio...

In recent years, many MAC protocols for wireless sensor networks have been proposed and most of them are evaluated using Matlab simulator and/or network simulators (OMNeT++, NS2, etc). However, most of them have a static behavior and few network simulations are available for adaptive protocols. Specially, in OMNeT++/MiXiM, there are few energyefficient MAC protocols for WSNs (B-MAC & L-MAC) and...

The paper presents a brief survey of the Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSN). It describes pros and cons of some known solutions of the MAC protocols with emphasis on his energy efficiency. The main goal in WSN is prolonging the lifetime of the sensor node, that is usually battery powered and can thus be achieved by designing energy-efficient MAC protocols. ...