Analysis of link failures and recoveries on 6to4 tunneling network with different routing protocol

2021 ◽  
Author(s):  
Neha Jain ◽  
Ashish Payal ◽  
Aarti Jain
Keyword(s):  
Routing Protocol ◽  
Link Failures

scholarly journals IJS: An Intelligent Junction Selection Based Routing Protocol for VANET to Support ITS Services

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Sourav Kumar Bhoi ◽  
Pabitra Mohan Khilar
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Intelligent Transportation System ◽  
Traffic Information ◽  
Vehicular Communication ◽  
Link Failures ◽  
Quickest Path ◽  
End To End Delay ◽  
Minimum Score ◽  
Link Connectivity

Selecting junctions intelligently for data transmission provides better intelligent transportation system (ITS) services. The main problem in vehicular communication is high disturbances of link connectivity due to mobility and less density of vehicles. If link conditions are predicted earlier, then there is a less chance of performance degradation. In this paper, an intelligent junction selection based routing protocol (IJS) is proposed to transmit the data in a quickest path, in which the vehicles are mostly connected and have less link connectivity problem. In this protocol, a helping vehicle is set at every junction to control the communication by predicting link failures or network gaps in a route. Helping vehicle at the junction produces a score for every neighboring junction to forward the data to the destination by considering the current traffic information and selects that junction which has minimum score. IJS protocol is implemented and compared with GyTAR, A-STAR, and GSR routing protocols. Simulation results show that IJS performs better in terms of average end-to-end delay, network gap encounter, and number of hops.

Mobility Prediction-Based Link Stability Routing Protocol for MANET

2014 ◽  
Vol 556-562 ◽  
pp. 5926-5930 ◽  
Author(s):  
X.M. Gao ◽  
J.H. Xia
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
Mobile Node ◽  
Mobility Prediction ◽  
Node Mobility ◽  
Link Failures ◽  
Link Stability ◽  
Overall Performance ◽  
Hoc Networks ◽  
Route Request

In mobile ad hoc networks, node mobility causes frequent link failures, thus invalidating the routes containing those links. Once a link is detected broken, an alternate route has to be discovered. That will impose significant affect on the route stability and the overall performance of the network. We suggest discovering contained stable links routes based on fuzzy control. When mobile node S wishes to send a packet to a destination mobile node D, node S transmits a ROUTE REQUEST (RREQ) message which contains its velocity and direction as a single local broadcast packet. When one mobile node i (it is not D) receiving RREQ, it first gets the velocity and direction of previous node, then estimates the link stability between two nodes based on fuzzy logic. When the link stability come up to a certain standard, node i adds its address to RREQ and forward it, otherwise, discard it. Simulations show that the proposed PLSR (Mobility Prediction-based Link Stability Routing Protocol) outperforms DVMP (Distance Vector protocol with Mobility Prediction that uses GPS) [8].

scholarly journals QoS Parameter Analysis on AODV and DSDV Protocols in a Wireless Network

2011 ◽  
pp. 62-70
Author(s):  
Vijayalaskhmi M ◽  
Avinash Patel ◽  
Linganagouda Kulkarni
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
High Mobility ◽  
Parameter Analysis ◽  
Delivery Ratio ◽  
Link Failures ◽  
Time Simulation ◽  
Message Exchange ◽  
Hoc Networks ◽  
Routing Tables

Wireless networks are characterized by a lack of infrastructure, and by a random and quickly changing network topology; thus the need for a robust dynamic routing protocol that can accommodate such an environment. To improve the packet delivery ratio of Destination-Sequenced Distance Vector (DSDV) routing protocol in mobile ad hoc networks with high mobility, a message exchange scheme for its invalid route reconstruction is being used. Two protocols AODV and DSDV simulated using NS-2 package and were compared in terms throughput, end to end delay and packet faction delivery varying number of nodes, speed and time. Simulation results show that DSDV compared with AODV, DSDV routing protocol consumes more bandwidth, because of the frequent broadcasting of routing updates. While the AODV is better than DSDV as it doesn’t maintain any routing tables at nodes which results in less overhead and more bandwidth. AODV perform better under high mobility simulations than DSDV. High mobility results in frequent link failures and the overhead involved in updating all the nodes with the new routing information as in DSDV is much more than that involved AODV, where the routes are created as and when required. AODV use on -demand route discovery, but with different routing mechanics. AODV uses routing tables, one route per destination, and destination sequence numbers,

scholarly journals Dynamic Link Failure Detection using Robust Virus Swarm Routing Protocol in Wireless Sensor Network

2019 ◽  
Vol 8 (2) ◽  
pp. 1574-1578
Keyword(s):  
Routing Protocol ◽  
Performance Metrics ◽  
Research Work ◽  
Failure Detection ◽  
Wireless Sensor ◽  
Link Failure ◽  
Efficient Manner ◽  
Link Failures ◽  
Network Failure ◽  
Available Energy

Wireless Sensor Networks (WSN) gets weak due to node failures because of different reasons like intervention and faults that arise in communication. These kind of failures makes the entire network failure or disconnect part of the network leading to link failure. Routing protocols are responsible to find the best route to destination, because link failure minimizes the entire quality of service. Hence, there exist a need to find the preeminent route between source and destination which makes the communication in a efficient manner. Optimization started playing a major role in research, specifically in mining and networking issues. This paper aims to propose a optimization based routing protocol namely robust virus swarm routing protocol in order to effectively detect the link failures to find the alternative path and efficiently utilize the available energy to extend the network lifetime. The proposed protocol works by utilizing the dissemination and infection method followed by virus which defends the host-cell for the survival and progression. This research work uses the benchmark performance metrics to evaluate the proposed protocol against the existing protocols in the simulator NS2. The result shows that the proposed protocol outperforms the existing protocols in terms of all the metrics.

Modified fuzzy-based greedy routing protocol for VANETs

2020 ◽  
Vol 39 (6) ◽  
pp. 8357-8364
Author(s):  
Thompson Stephan ◽  
Ananthnarayan Rajappa ◽  
K.S. Sendhil Kumar ◽  
Shivang Gupta ◽  
Achyut Shankar ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Routing Protocol ◽  
Intelligent Transportation Systems ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Research Area ◽  
Transportation Systems ◽  
Delivery Ratio ◽  
Greedy Routing ◽  
Hoc Networks

Vehicular Ad Hoc Networks (VANETs) is the most growing research area in wireless communication and has been gaining significant attention over recent years due to its role in designing intelligent transportation systems. Wireless multi-hop forwarding in VANETs is challenging since the data has to be relayed as soon as possible through the intermediate vehicles from the source to destination. This paper proposes a modified fuzzy-based greedy routing protocol (MFGR) which is an enhanced version of fuzzy logic-based greedy routing protocol (FLGR). Our proposed protocol applies fuzzy logic for the selection of the next greedy forwarder to forward the data reliably towards the destination. Five parameters, namely distance, direction, speed, position, and trust have been used to evaluate the node’s stability using fuzzy logic. The simulation results demonstrate that the proposed MFGR scheme can achieve the best performance in terms of the highest packet delivery ratio (PDR) and minimizes the average number of hops among all protocols.

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