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Due to the rapidly changing topology of vehicular ad hoc network (VANET), it requires the routing protocol can be able to find out comparatively more stable routes. But the routing protocols in existence are not taking the distinguishing features of vehicles and roadway into consideration, and this brought about challenges to these routing protocols' applicability in VANET. In this paper, we take...
The existing opportunistic protocols of delay tolerant network (DTN) occupy much storage and the prediction-based protocols need to calculate and spread much predication information and the scheduling protocols cannot accommodate to huge complex network. This paper analyses and summarizes the existing DTN protocols and proposes a new DTN routing protocol called CRHC which is based on hierarchical...
In Wireless Mesh Networks (WMNs), users can enjoy the real-time video streaming service anytime and anywhere through the service. Compared to the client/server model, the P2P (Peer-to-peer) approach is more suitable for video streaming applications because of its efficient usage of network resources. However, the multimedia applications are very sensitive to delay time and the performance of packets...
In Ad Hoc network, the multi-hop networks as the characteristics of the dynamic changing of the interconnection topology make the routing very important. In this paper, an optimized scheme of SMR is presented, which allows the SMR having better performance in low-speed environment, especially can decrease the end-to-end delay, and also expands the range. At last, we compared our optimized scheme with...
In intermittently connected networks, epidemic routing protocols have been widely used as its simplicity and reliability. However, this kind of protocols will make the same message cover most of the nodes in networks which causes a huge waste of network resources. Therefore, this paper proposes a new routing protocol named epidemic routing based on separation time with forwarding tokens constrained...
Delay tolerant networks (DTNs) are wireless mobile networks that do not guarantee the existence of a path between a source and a destination at any time. When two nodes move within each other's transmission range during a period of time, they can contact each other. The contact of nodes can be periodical, predictable and nonpredictable. In this paper, we assume the contact of nodes is nonpredictable...
Delay-tolerant networks (DTN) have the capacity to interconnect devices in roomy regions unlike traditional networks. Based on common sense, the more similar the mobility pattern of nodes, the more stable their relative positions, which results in a connection between them with a longer duration In this paper, a novel routing scheme using the similarity degree of mobility pattern is proposed to optimize...
Traditional single next hop routing that chooses the best paths is an important cause of today's network congestion problem, and it can lead to high packet loss rate when link failure happens. In this paper, a routing protocol called MNHRIP (multi next hop routing information protocol) based on modified RIP is provided to solve these two problems. The method of constructing directed routing graph...
Delay-tolerant networks (DTNs) have the capacity to interconnect the devices in roomy regions unlike todaypsilas networks. In this paper, we propose a routing scheme named time interval routing (TIR) to increase deliver ratio and decrease deliver latency in DTNs. TIR, only using limited and local information as well as simple algorithm, chooses the node in transmission range with the least time interval...
In this paper, we propose a social relation aware routing protocol for mobile ad hoc networks, which is designed for content sharing mobile social applications. Since a content can be shared by a group of users who have similar interests, the similarity of users' interests is a good metric to predict who will consume which contents. Shared interests can be exploited in routing and replication of content...
Routing in delay tolerant networks (DTNs) is a challenging problem in networking research. Existing DTN routing solutions have used many approaches to increase the success rate of message delivery, such as meeting probabilities between nodes, packet replication and flooding. One important feature of these protocols is using local connection information to find the ldquobestrdquo path with high likelihood...
This paper aims at adding quality of services (QoS) extensions to the associativity based routing (ABR). The performance analysis of the ABR with QOS support is the same as ABR except for more computation on the intermediate nodes to comply with the QOS requirements and the size of the control messages will be varying. But the total number of operations performed and total number of messages exchange...
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