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Position-based Routing Vehicular Ad-hoc Network (PBR-VANET) is a specific type of mobile Ad-hoc network where the nodes are present as vehicles and the routing is decided based on node position. However, PBR-VANET routing protocols greatly suffer from mass packet loss due to frequent changes in topology. We discuss the requirements of the routing protocol and propose a routing encapsulation protocol...
In Vehicular Ad Hoc Networks (VANETs), moving vehicles are considered as mobile nodes in the network and they are connected to each other via wireless links when they are within the communication radius of each other. Efficient message delivery in VANETs is still a very challenging research issue. In this paper, a Q-learning based routing protocol (i.e., QGrid) is introduced to help to improve the...
Vehicular ad hoc network(VANET) is increasingly studied recently due to its promising benefits to the urban life. The roadside unit(RSU) is one of the most important components for VANET. An effective deployment of RSUs will enhance the efficiency of the data delivery in VANET. In this paper, we propose to address the RSU deployment problem by formulating it as a mobility clustering problem. We adopt...
Software-defined networking has emerged as a promising solution for supporting dynamic network functions and intelligent applications through decoupling control plane from forwarding plane. OpenFlow is the first standardized open management interface of SDN architecture. But it is unrealistic to simply swaping out conventional networks for new infrastructure. How to integrate OpenFlow with existing...
This paper presents the magnetic field modeling-based energy efficient routing for WSN which models the routing problem as a current-carrying solenoid and a free to turn magnet put into a uniform magnetic field respectively. The optimal routing is then performed through the path with the maximum generated magnetic field intensity for the solenoid technique and with minimum torque for the magnetic...
In this paper a clustering algorithm is proposed based on geographic region (GRA), each region selects its cluster head independently. In order to reduce energy consumption and balance the communication load, A Combination of single hop and multi-hop communication manner is adopted. The concept “next hop transit area” is put forward to simplify the routing and ensure that each communication consume...
Wireless sensor network is a revolution of information collection and perception field, which has been draw much more application gradually. However, The WSN with characteristic of self-organization, multi-hop, dynamic topology and limited energy resources, which make the network to prolong it's lifetime become extremely difficult. This paper analyzed variety multicast protocols in existence and the...
In a Mobile Ad hoc NETwork (MANET), nodes are self-organized and have to cooperate for routing in absence of fixed infrastructure. Two nodes beyond the direct communication range need intermediate nodes to forward their packets. Working in an open environment, MANETs are vulnerable to attacks by malicious nodes. A trust-based on-demand routing framework is given to decrease the hazards from malicious...
In framework for integrating Internet and MANET, because the equipments in the networks are fixed, there is no need to consider the problem of energy. In MANET (mobile ad hoc network), the energy of the mobile nodes will affect the life time and the performance of the network, so it must consider the load and energy of a node. This paper proposes a new routing method called Load balancing and asymmetrical...
Route flap caused by link flap in OSPF always lead to network instability and unreliability. Most of the prevailing solutions are network-wide and require all routers to participate in the route flap suppressing process, which not only lack flexibility and scalability but also occupy additional computation resources across the network. In this paper, a localized approach is proposed to suppress the...
With the emergence of voice over IP and other realtime business applications, there is a growing demand for high network availability. Commonly deployed link state routing protocols such as OSPF react to link failures through global (i.e., network wide) link state advertisements and routing table recomputations, causing significant forwarding discontinuity after a failure. To improve network availability...
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