An ad-hoc network is self-organizing and adaptive. Networks are formed on-the-fly, devices can leave and join the network during its lifetime, devices can be mobile within the network, the network as a whole may be mobile and the network can be deformed on-the-fly. Devices in mobile ad-hoc networks should be able to detect the presence of other devices and perform the necessary set-up to facili...

This paper describes a detailed performance evaluation of distributed Medium Access Control (MAC) protocols for Wireless Sensor Networks based on Impulse Radio Ultra Wideband (IR-UWB) Physical layer (PHY). Two main classes of Medium Access Control protocol have been considered: Slotted and UnSlotted with reliability. The reliability is based on Automatic Repeat ReQuest (ARQ). The performance ev...

An ad hoc network is a temporary infrastructureless network, formed dynamically by mobile devices without turning to any existing centralized administration. To send packets to remote nodes, a node uses other intermediate nodes as relays, and ask them to forward its packets. For this purpose, a distributed routing protocol is required. Because the devices used are mobile, the network topology i...

-----------------------------------------------------------------ABSTRACT---------------------------------------------------------------------Due to the high flexibility, mobility and low cost features, wireless ad hoc networks are widely used. A particularly challenging problem is how to feasibly detect and defend the major attacks against routing protocols of such networks that have susceptib...

Due to known difficulties of researchers in the networking domain regarding experimentation of their ideas in actual networks, network simulators have become indispensable tools for investigating and validating various ideas in all layers of the network. In this survey, we inspect the implementations of IEEE 802.11 PHY-MAC and propagation models of some of the well-known, open-source network si...

This paper presents Flow-Aware Routing Protocol (FARP), a new routing strategy designed to improve load balancing and scalability in mobile ad hoc networks. FARP is a hop-by-hop routing protocol, which introduces a flow-aware route discovery strategy to reduce the number of control overheads propagating through the network and distributes the flow of data through least congested nodes to balanc...

The suitability of using relative addressing to help support the deployment of customized protocols or reduce the communication and processing overhead of signaling packets is explored. The basic approach consists of breaking the signaling used for routing into an addressing component and a routing component, and establishing virtual networks that use relative addressing and customized protocol...

Mobile Ad hoc Networks (MANET) is a collection of randomly moving wireless devices within a particular area. Unlike in cellular networks, there are no fixed base-stations to support routing and mobility management. Further more, many resources such as power energy and bandwidth are very limited in MANET. Concentrating on resolving these problems, we present a three-tier framework. The framework...

Many energy-aware routing protocols have been proposed for wireless sensor networks. Most of them are only energy savers and do not take care about energy balancing. The energy saver protocols try to decrease the energy consumption of the network as a whole; however the energy manager protocols balance the energy consumption in the network to avoid network partitioning. This means that energy s...

The main objective of this paper is to propose a frame work for improvising the service of multimedia applications in mobile networks. The framework has been proposed with a Cross-Layer Manager (CLM) and a Cross-Layer Coordinator (CLC) for improvising of multimedia applications by dynamically adapting the bandwidth under prevailing channel conditions. Cross-Layer coordination among Application,...