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The design of routing protocol in mobile social delay tolerant networks is a tricky issue due to lack of stable end-to-end path, frequent link disconnection and changeable network topology. This paper proposes a novel routing algorithm based on dynamic topological potential and social relationship (DTPSR) between nodes for mobile social delay tolerant networks. In DTPSR, we define three metrics to...
Current mobile ad-hoc routing protocols are not suitable for flying ad-hoc network, because of the dynamic environmental conditions, high mobility and terrain structures. In this paper, we propose a novel directional routing scheme for flying ad-hoc network using combined omnidirectional and directional transmissions. The proposed scheme features hybrid use of unicasting and geocasting routing using...
On-demand routing protocols are the most commonly used protocols for the MANETs. It is the dynamic protocol and suitable for many applications. Wireless mobile adhoc networks have gained a lot of significance in wireless communications. The data transmission between the nodes in the wireless communication was established by adopting the routing protocol. The node in mobile ad-hoc networks acts as...
With the increasing number of wireless mobile devices, the possibility of mobile communications without network infrastructure is becoming a reality. The decentralized mobile social network (MSN) is a paradigm where nodes can move freely and organize themselves arbitrarily. Therefore, the key challenge is to find routes that can provide satisfactory delivery performance and low average end-to-end...
Mobile ad-hoc network (MANET) is the collection of various mobile nodes which are connected together over a wireless medium having no fixed infrastructure. Each participating node in the network acts as both router and host and responsible for forwarding packets for other nodes. Nowadays MANETs are becoming famous for their applications and features. In MANET identifying the security issues is major...
ODMA-WiFi network is a sort of multi-hop temporary autonomous network which is of great compatibility, composed of lots of mobile nodes without pre-positioned network infrastructure, and mainly used for conditions where the network needs to be deployed rapidly. This flexibility of ODMA-WiFi nodes introduces new challenges for the design of efficient network protocols. The throughput of the network...
In the case of medical applications, the main requirement is to improve the control overhead and to achieve the reliable data transmission. A ZigBee based mobile patient monitoring network model is proposed, and its performance improvement is analysed based on reduced delay and enhanced throughput. We are focusing on the separate and comparative performance evaluation of AODV and DSR routing protocol...
We develop a spatial framework to provide end-to-end delay estimates and guarantees in mobile multihop networks. The novel aspect of this approach is the attribution of network and MAC layer congestion to space, which enables congestion-aware routing and provides delay guarantees over a much longer duration than that achieved by the routing algorithms based on individual nodes. In a mathematically...
The paper explores and compare the effect of different types of wormhole attacks on the performance of On demand routing protocols in Mobile Adhoc networks (MANET's). The evaluation has been done by studying and comparing End to End delay and throughput for all drop, all pass and threshold type of wormhole attacks.
This paper introduced the mobile Ad Hoc networks firstly and simply analyzed the main characteristics of the mobile AD hoc network, such as multi-hop network mode, the dynamic changes of the topology network, the autonomy of the mobile terminal etc. This paper put forward the routing protocol design requirements. According to the characteristics of the protocols, it should avoid multicast algorithm...
Ad hoc networks are characterized by multihop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols plays an important role. In these networks there is no fixed topology due to the mobility of nodes, interference, multipath propagation and path loss. Hence a dynamic routing protocol is needed for these networks to function properly. Many of...
In this paper we propose a novel method for establishing reliable and efficient data transmission in wireless sensor networks. In this approach we achieve energy efficiency by using hierarchical clustering method to form clusters in the sensor network. Network lifetime is increased by using this technique. To increase reliability and to utilize energy much more effectively multiple mobile sinks are...
In the design of mobile ad hoc networks, a challenging problem is how to route information reliably and efficiently from one node to another in moderate to high level of mobility. In this paper, we propose a new routing protocol, called link effective available time (LEAT) routing. First, we propose a method to find the link available time during an epoch by measuring the distances between the two...
Wireless Sensor Networks (WSN) are applicable in vast range of applications and depending on the application the sink could be mobile or stationary. Sink mobility has been shown to improve network lifetimes [1], however mobile sink has to periodically update network about its changing position. This control traffic is non-negligible for low power, limited capacity sensors and induces energy consumption...
In practice, ad hoc networks are still too unreliable for standard mobile and vehicular communications. It is thus important to complement current protocols in this context, with schemes guaranteeing the exchange of critical data when needed. A promising approach in this realm is to use an overlay subgraph, over which critical messages are exchanged and acknowledged in a peer to peer fashion. Overlay...
In recent years, there are many research works on ad hoc networks. In the future, we will see many ad hoc network applications, which are very important for realizing ubiquitous environments. The topology of ad hoc networks may change. For this reason, the routing protocols play an important role for construction of ad hoc networks. In this paper, we propose a new zone based routing protocol, which...
Wireless sensor networks are often deployed in harsh environments, where the adversary is able to capture certain sensors. Once a sensor is compromised, the adversary can easily replicate it and deploy several replicas back into the network for further malicious activities. Although a number of protocols have been proposed to tackle such node replication attacks, few of these schemes are suitable...
With regard to the research on MANET mobile model and routing protocol issues, according to the behaviors of community mobile nodes, a community wireless mobile model based on AOC. Autonomous system was established by making use of AOC-by-prototyping combining with trial-and-Error process. This paper does simulation experiment through NS-2 simulation platform, showing that in this model DSR and AODV...
The multicast routing is very important for Mobile Ad hoc Networks (MANET). Though many multicast routing protocol are proposed, we consider ODMRP, which is a mesh based routing protocol. In ODMRP the reliability of the communication can be maintained by putting the relay nodes in the mesh. However, when the network is overloaded the performance of ODMRP is deteriorated. In this research, we try to...
Ad-hoc mobile networks consist of many mobile nodes which communicate by wireless connections without any fixed infrastructure. Our present article, we will compare two types of routing: the reactive algorithm (AODV) and the proactive algorithm (OLSR). Through our simulation carried out under NS2 (Network Simulator 2), we will show a classification of the various algorithms of routing studied according...
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