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A Mobile Adhoc Network (MANET) is featured by multi hop wireless connectivity with topology change due to highly mobile stations with autonomous configuration ability. Therefore, it is very challenging to develop vibrant and resourceful routing Protocol for MANET which also performs excellent routig with security feasibility. This paper presents a detailed study and analysis of various routing issues...
Design of energy efficient underwater wireless sensor networks (UWSNs) routing protocol to prolong network lifetime is a challenging task because of limited battery life of sensor nodes. In this paper, we propose mobile energy efficient square routing protocol (MEES) to balance energy consumption of nodes in the network. Two mobile sinks are deployed at the farthest distance from each other. In order...
In this paper, a routing protocol, Maximum Coverage in Square field region (MCS) for Underwater Wireless Sensor Networks (UWSNs) is introduced. The overall area of the network is divided into ten sub regions and two mobile sinks (MSs) are deployed. The data is transmitted to the MS directly and mobility pattern of MS is adjusted in such a way that it covers the whole area of the network. When MS and...
An adhoc network is collection of wireless mobile hosts, which form a temporary network by using reconfigurable structure that means it doesn't use fixed infrastructure to form a temporary network. It will connect all nodes through wireless technique. Hence it can change the link between one node to another node during run time, when the link failure problem occurs. There is a limited range for each...
The mobile devices are becoming the important part in our day to day life. These are now one of the basic needs of our daily life. These devices are used to share the data of interest with one another. Data may be in the form of picture or video clip , news etc. But sometimes , data cannot reach to the user who is interested ,because of delaying of messages. Sometimes nodes do not want to loose their...
Due to their intrinsic characteristics, Ad Hoc mobile networks could be subjects to disturbances or node break-downs. The latter are worsened by the nodes relay and mobility features. A more sophisticated Multihoming integration to MANET networks necessarily increases its robustness: in other words, it improves its performances. That is why we suggest in this article a new extension of the Stream...
As the practical propagation environment suffers from various fading, investigation of a suitable routing protocol for this type of environment is need of the day. Many routing protocols have been evaluated for idle conditions but none of them have taken actual physical environments such as fading, etc. into consideration. In this paper, that particular Issue has been addressed. Three most popularly...
In mobile ad-hoc networks (MANETs), nodes use hello messages to detect neighbor nodes and to maintain link connectivity. In a typical MANET routing, a node broadcasts hello messages at a fixed interval. However, a fixed hello interval causes a long delay of neighbor discovery (too long hello intervals) or a more bandwidth waste by unnecessary protocol overhead (too short hello intervals). In this...
Mobile Ad-Hoc Networks (MANETs) are collections of self-organizing mobile nodes with dynamic topologies and does not have any centralized control in the network. MANET have no clear way of defense mechanism to protect network from security threats, thereby making this network accessible to both legitimate node and authorized node. The absence of centralized administration and openness make MANETs...
The mobile devices are becoming the important part in our everyday life. These are now one of the basic needs of our daily life. These devices are used to share the data of interest with one another. Data may be in the form of picture or video clip, news etc. But sometimes, data cannot reach to the user who is interested, because of delaying of messages. Sometimes nodes do not want to loose their...
Design of underwater wireless sensor networks (UWSNs) is difficult because of limited battery energy of sensor nodes. Low bandwidth and energy consumption are major problems that we face in UWSNs, due to dynamic behavior of water in underwater environment. In our scheme, circular field is divided into ten sub-regions and each region is divided into eight sectors. Two mobile sinks move to cover the...
Due to unique characteristics of underwater environment, it is difficult to achieve energy efficiency, high throughput and low bit error rate. Radio signals do not propagate well in underwater environment so acoustic signals are used for communication. Acoustic signals offer low bandwidth, high bit error rate, low throughput and high end-to-end delay. Data packets often loose their path which effect...
Wireless communication is used to establish connection between nodes that communicate with each other. MANET (Mobile ad hoc Network) is having Open nature that makes it vulnerable for various security threats. These vulnerabilities allow the attacker to compromise the network and degrade the performance of the network. Gray-hole attack is one of the dangerous attacks. A gray-hole attack is extremely...
Heterogeneous Wireless Mesh Networks (HetMesh) is a promising high throughput technology for multi-hop data forwarding by mobile clients and backbone routers in a dynamic environment. HetMesh supports Wifi-Direct facility and other separate access technologies in its mobile clients, which makes the selection of a suitable next hop forwarder for data transmission challenging. This paper proposes a...
Routing protocols play important roles in mobile adhoc network performance. The Protocols find and decided the communication path with the routing algorithm to deliver the data along the networks. Channel qualities in wireless communication are an important factor in network performance. Previous research in routing protocol development did not much pay attention in this matter. This paper shows the...
Mobile ad hoc network is a network of wireless node connected using wireless media. Each node operates as a router for all other nodes in the network. Nodes in MANET are mobile and hence change their topology dynamically. From one source to destination node there may be multiple paths. Due to wireless link mobile ad hoc networks are susceptible to many attacks. One popular attack on mobile ad hoc...
Wireless data transfer between mobile users has become more popular nowadays. In Mobile Ad-hoc Network, mobile nodes communicate with each other through the wireless medium, within the transmission range. If we use the data access applications in the wired network, the physical cabling in the wired network is restricting the connection topology and the bandwidth. But there is no such a restriction...
Ad hoc communications are attracting more and more attention in today's research and technology, because of low cost implementation, and simple initialization procedures. They are being projected to be used in several fields such as collaborative computing and disaster recovery environments. However, route instabilities and scalability are issues that still need to be addressed. In this paper we implement...
Blockage of communication links due to environmental obstructions and the resulting on/off channel behavior present challenges for providing reliable communication in mobile wireless networks. Traditional reliability techniques such as forward error correction and automatic repeat request (ARQ) are not designed to operate at the timescales typically observed in blockage channels. This work presents...
Mobile ad hoc network is an arbitrary network in which all the nodes are mobile and consists of limited battery power and channel bandwidth. Ad hoc network often deployed in emergency situations, therefore saving resources i.e. power in such situations is prime importance. In this paper, an algorithm MAODV (Ad Hoc on demand distance vector routing using threshold power to route the packet) has been...
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