Reliable multicast is a critical network service for key applications in mobile ad hoc networks (MANETs). Multimedia applications and data transfer applications have different QoS demands: delay-bounded delivery and 100% data delivery guarantee. In the paper, we present two reliable multicast protocols to meet these demands: Collaborative Opportunistic Recovery Algorithm (CORA) and Collaborativ...

Vehicular ad hoc networks are an emerging technology with an extensive capability in various applications including vehicles safety, traffic management and intelligent transportation systems. Considering the high mobility of vehicles and their inhomogeneous distributions, designing an efficient routing protocol seems necessary. Given the fact that a road is crowded at some sections and is not c...

In this paper, performance analysis of different broadcasting methods i.e. flooding or blind broadcast and probabilistic broadcasting inside the geocast region has been done. Our objective is to provide a comparative analysis between flooding and probabilistic methods with varying number of nodes in Vehicular Ad hoc Networks. Simulations have been conducted using the NS-2 simulator. For result ...

Mobile ad-hoc networks consist of a collection of mobile nodes without having a fixed communication. Due to the communication less network, there exist a ordinary link breakages which can leads to frequent path failures and finding the route. A mobile nodes can blindly rebroadcasts the first received route request packets unless it has a route to the destination and thus it causes the broadcast...

The underwater acoustic channel features long and variable propagation delay, high bit error rate and limited bandwidth. Moreover, underwater mobile networks consisting of Autonomous Underwater Vehicles (AUVs) for surveillance and monitoring applications often suffer from intermittent connectivity as nodes move around the area of operations. Therefore, this scenario is appropriately modeled as ...

Appropriate routing protocol in data transfer is a challenging problem of network in terms of lower end-to-end delay in delivery of data packets with improving packet delivery ratio and lower overhead as well. In this paper we explain an effective and scalable AODV (called as AODV-ES) for Wireless Ad hoc Sensor Networks (WASN) by using third party reply model, n-hop local ring and time-to-live ...

-------------------------------------------------------------------ABSTRACT-------------------------------------------------------------In mobile ad-hoc networks (MANET), the movement of the nodes may quickly change the networks topology resulting in the increase of the overhead message in topology maintenance. The nodes communicate with each other by exchanging the hello packet and constructin...

In enormous and medium measured urban areas, transports have the accompanying elements: thickness directions, customary courses, predicable versatility, and so forth. In the multi-AP street organize, every transport knows other's predefined plans and settled courses.. In this paper, we try to performance enhancement of data delivery through improving the throughput and packet deliveryy ratio an...

ABSTRACT— In IP networks routing failure is a common problem which leads to low packet delivery ratio. The routing protocols are not always fast enough to react and recover from failures. Fast reroute solutions have been proposed and developed in recent years which ensure route availability and reduce the packet loss. The existing solutions address either the intra-domain failures or the inter-...

Wireless sensor networks demand energy efficient and application specific medium access control protocol when deployed in critical areas which are not frequently accessible. In such areas, the residual energy of nodes also become important along with the efficient data delivery. Many techniques using adaptive duty cycle approach are suggested by researchers to improve the data delivery performa...