scholarly journals Hybrid Mobile Ad-Hoc Delay Tolerant Network for Optimum Routing in Wireless Sensor Networks

2019 ◽  
Vol 8 (11) ◽  
pp. 1303-1308
Keyword(s):  
Black Holes ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Packet Transmission ◽  
Delay Tolerant Network ◽  
On Demand ◽  
Distance Vector ◽  
Mobile Ad Hoc ◽  
Delay Tolerant ◽  
Aodv Routing Protocol

Due to some misbehaving nodes in Mobile Ad-hoc networks (MANETs), data is lost or false data is delivered. In order to detect and re-configure the path from the source to terminal, Ad-Hoc On- Demand Distance Vector (AODV) routing protocol is used. In existing method the black holes are generated due to the Ad-Hoc On-Demand Distance Vector (AODV) routing protocol. Hence a Delay Tolerant Network (DTN) is proposed to cope up with the black holes. In this paper, it is proposed to operate by forming hybrid network with MANET and DTN as MADT Network is to deliver the correct data with increased bit rate and low delay. The proposed Hybrid MADT network has been verified and the results show that the throughput of the proposed network is increased by 0.7%, the packet transmission rate is enhanced by 7% and the end-to-end delay is reduced by 4%

scholarly journals Performance Evaluation of GPSR and AODV Routing Protocols in MANETS

2019 ◽  
Vol 9 (2S) ◽  
pp. 459-461
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc ◽  
On Demand ◽  
Protocol Performance ◽  
Military Applications ◽  
Wireless Medium ◽  
Distance Vector ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile ad hoc networks (MANETs) are collection of nodes connected through wireless medium and do not require infrastructure for operation. Network Topology keeps on changing because mobility of nodes are high. Therefore, it is important for MANETs to provide excellent routing and security features. Since MANETs do not require any pre-existing infrastructure, they are extensively used in emergency and rescue and military applications. MANETs thus will form essentially an important part in wireless networks. In this paper, Ad hoc On-Demand Distance Vector (AODV) and Greedy Perimeter Stateless Routing (GPSR) routing protocol performance is compared with respect to Throughput and E2ED and observed that there is an improvement in throughput by 11% in case of GPSR. Simulation is performed using NS3.

scholarly journals Confidence-based Security System for Routing Protocol in Mobile Ad-hoc Networks

2019 ◽  
Vol 9 (2) ◽  
pp. 2212-2218
Keyword(s):  
Energy Consumption ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Average Energy ◽  
Delivery Ratio ◽  
Node Mobility ◽  
On Demand ◽  
Distance Vector ◽  
Mobile Ad Hoc

A mobile ad-hoc network (MANET) is an infrastructure-less network of wireless nodes. The network topology may change quickly with respect to time, due to node mobility. The network is a disintegrated network, activities such as delivering messages by determining the topology essential to be implemented by the nodes themselves i.e., the routing activity will be unified into mobile nodes. Due to the lack of centralized administration in multihop routing and open environment, MANET’s are susceptible to attacks by compromised nodes; hence, to provide security also energy efficiency is a crucial issue. So as to decrease the hazards of malicious nodes and resolve energy consumption issues, a simple confidence-based protocol is built to evaluate neighbor’s behaviour using forwarding factors. The reactive Ad-hoc on-demand multipath distance vector routing protocol (AOMDV), is extended and confidence-based Ad-hoc on-demand distance vector (CBAOMDV) protocol, is implemented for MANET. This implemented protocol is able to find multiple routes in one route discovery. These routes are calculated by confidence values and hop counts. From there, the shortest path is selected which fulfills the requirements of data packets for reliability on confidence. Several experimentations have been directed to relate AOMDV and CBAOMDV protocols and the outcomes show that CBAOMDV advances throughput, packet delivery ratio, normalized routing load, and average energy consumption.

scholarly journals Research of Security Routing Protocol for UAV Communication Network Based on AODV

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1185 ◽  
Author(s):  
Xiaopeng Tan ◽  
Zhen Zuo ◽  
Shaojing Su ◽  
Xiaojun Guo ◽  
Xiaoyong Sun
Keyword(s):  
Communication Network ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Rapid Development ◽  
Packet Transmission ◽  
Malicious Nodes ◽  
On Demand ◽  
Digital Signature Algorithm ◽  
Distance Vector ◽  
Demand Routing

With the rapid development of information technology and the increasing application of UAV in various fields, the security problems of unmanned aerial vehicle (UAV) communication network have become increasingly prominent. It has become an important scientific challenge to design a routing protocol that can provide efficient and reliable node to node packet transmission. In this paper, an efficient Digital Signature algorithm based on the elliptic curve cryptosystem is applied to routing protocol, and an improved security method suitable for on-demand routing protocol is proposed. The UAV communication network was simulated through the NS2 simulation platform, and the execution efficiency and safety of the improved routing protocol were analyzed. In the simulation experiment, the routing protocols of ad-hoc on demand distance vector (AODV), security ad-hoc on demand distance vector (SAODV), and improved security ad-hoc on demand distance vector (ISAODV) are compared in terms of the performance indicators of packet delivery rate, throughput, and end-to-end delay under normal conditions and when attacked by malicious nodes. The simulation results show that the improved routing protocol can effectively improve the security of the UAV communication network.

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