Transmission of Multimedia Data over Wireless Ad-Hoc Networks

Figure 8.3(a) demonstrates a portion of a wireless ad hoc network where a source node S has a data packet to be sent to a destination node that is

We have created a network with the campus area of 500X500square meters taking 20 numbers of ad hoc nodes forming a network, the transmission range 200m. The network is simulated using high capacity processor and the OPNET and MATLAB7 platform. Such a simulated result is shown in Fig.1.

A group of wireless sensor nodes (devices) dynamically constructs a temporary network without the exercise of any pre-existing network infrastructure or centralized administration. The main goal of ad-hoc networking is multihop broadcasting in which packets are transferred from source node to destination node through the intermediate nodes (hops). The main function of multi hop WSN is to enable communication between two terminal devices through a bit of middle nodes, which are transferring information from one level to another level. On the foundation of network connectivity, it dynamically gets to determine that which nodes should get included in routing, each node involved in routing transmit the data to further

Ad hoc networks are suited for use in situations where infrastructure is either not available

A WSN is a type of wireless networks that consists of collection sensor nodes which are tiny devices. Each sensor node of the network has different processing capability. It may contain multiple types of memory (program, data and flash memories), have a RF transceiver, have a power source (e.g., batteries and solar cells), and accommodate various sensors and actuators. The nodes communicate wirelessly and often self-organize after being deployed in an ad hoc fashion [13, 14]. Optimum need of each sensor node is to maximize its own utility function. Also the whole network requires resource assignments balance to perform in a useful and efficient way. This chapter presents a brief survey on WSNs showing its types, characterizing features, protocols and applications.

The Mobile ad hoc networks is one of the emerging technologies today. The instability of the nodes in a mobile ad hoc network makes it difficult to calculate the reliability of the network. When a node moves freely move in a

The market for wireless communications has experienced incredible growth over recent years and wireless LANs have rapidly become a very

3. What is an ad hoc network? In this network, the wireless clients (stations) communicate directly with each

.Multimedia generally refers to the method of applying different tools for a single outcome. The different generations of

MANETs (Mobile ad-hoc network) is defined as autonomous collection of wireless mobile nodes that are self-configure to construct a network that can communicate over relatively bandwidth constrained wireless links.

A wireless network is any type of computer network that uses wireless data connections for connecting network nodes .Wireless networking is a method by which homes, telecommunications networks and enterprise (business).Installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model  network structure.

Since their emergence, wireless networks have become increasingly popular. There are currently two kinds of wireless networks in use, namely WLAN’s and Ad Hoc. WLAN’s are called infrastructure networks as they have fixed and wired gateways, whereas Ad hoc are called infrastructure less networks as they don’t have any fixed routers, all nodes in this are capable of movement and can be connected

Advancements in the information technology sector have brought many benefits to the people all around the world.  Today with computer networking, we can chat, speak and see each other over a long distance. Data communication refers to the transmission of the digital signals over a communication channel between the transmitter and receiver computers. Communication is possible only with wired and wireless connectivity of the computers with each other.

With the rapid development of wireless communication systems, there will be a need for the network deployment of independent mobile users [1]. Significant examples such as establishing survival, proficient, active communication for emergency/rescue operations, disaster management efforts, and secured military networks [2]. ]. Vehicular Ad-hoc Networks (VANETs) can be considered as a subclass of Mobile Ad hoc Networks (MANETs) with some unique characteristics. Vehicles move on the roads sharing information among them. Vehicles often move at high speed but their mobility is within regular constraints and predictable. An accurate estimate of vehicle’s position can be made available through GPS systems or on-board communication unit. VANETs

A Multimedia database is a collection of related multimedia data. The multimedia data include one or more primary data types such as text, images, graphic objects(includes drawings, sketches and illustrations) animation sequences, audio and video.[w]