scholarly journals Efficient on Demand Routing Protocol to Optimize Throughput in Manet

2019 ◽  
Vol 8 (3) ◽  
pp. 2653-2660

Throughput oriented route selection is still a challenging task due to several constraints of ad-hoc networks such as absence of central control, dynamic network topology, selfish nature of nodes, etc. A routing protocol produce optimum results if it prioritizes wireless links on the basis of link quality and consider high quality/ efficient links at the time of path selection. Proposed protocol discovers high quality/ efficient links and connects those links to establish efficient route in mobile adhoc network that leads to high Aggregate Network Throughput. This work has been done by estimating every link’s ENT (Expected Number of Transmission) value as QoS parameter and considering qualifying high capacity/efficient links to communicate data packets. To estimate ENT value of each link, variability in packet loss rate on that link is observed in simulation experiments. Probability of errors in transmission is estimated at bit level. Results are stochastic and high fluctuations observed in packet loss rate hence 𝝈 𝟐 (i.e. packet loss variance on a wireless link) included in link quality estimation. In proposed protocol EODRP (Efficient On Demand Routing Protocol) link quality based route metric ENT, selects QoS qualified wireless links during route computation and routing information disperse through reactive routing protocol. Simulation results have been analyzed and compared with MXAODV [7] which indicates significant improvement in network efficiency in terms of throughput and other parameters.

Author(s):  
Egberto Caballero ◽  
Vinicius C. Ferreira ◽  
Robson A. Lima ◽  
Celio Albuquerque ◽  
Debora C. Muchaluat-Saade

2014 ◽  
Vol 18 (9) ◽  
pp. 1595-1598 ◽  
Author(s):  
Jorge Mata-Diaz ◽  
Juanjo Alins ◽  
Jose L. Munoz ◽  
Oscar Esparza

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Guoan Zhang ◽  
Min Wu ◽  
Wei Duan ◽  
Xinming Huang

A genetic algorithm (GA) based QoS perception routing protocol (GABR) is proposed to guarantee the quality of service (QoS) influenced by broken links between vehicles and the failure of packets transmission in a vehicular ad hoc network (VANET). With the observation that all improvable paths are probed by the intersection based routing protocol, the genetic GA is utilized to optimize the global available paths which satisfies the QoS requirement. Moreover, by means of the numerical results, it is shown that the proposed scheme is significantly improved compared with protocols of the intersection based routing (IBR) and connectivity aware routing (CAR) in terms of transmission delay and packet loss rate.


2017 ◽  
Vol MCSP2017 (01) ◽  
pp. 38-41
Author(s):  
Hari Shankar Sahu ◽  
Rupanita Das

Now a days telecommunication technology leads to a rapid growth of number of users, these number of users nothing but number of nodes in MANET.A wireless ad hoc network is a decentralized type of wireless network. The mobility of nodes effect on the performance of the network. Due to mobility of nodes the link breaks number of times which effect on the packet delivery. Therefore to analyze the performance, packet delivery fraction (PDF)can be used. This paper describe the packet delivery fraction of on demand routing protocol AODV and DSR on different terrain areas using GLOMOSIM.


2014 ◽  
Vol 651-653 ◽  
pp. 1868-1874
Author(s):  
Li Zhu ◽  
Lan Bai

VANETs is a rapid developed wireless mobile MANETs network with special challenge nature. It is a distributed and self-organized communication network based on moving vehicle. This network has characteristics like limited bandwidth, strong mobility, strong dynamic network topology, limited node degrees freedom, equipment capacity constraints and weak physical security. These characteristics usually make typical routing protocol in mobile MANET show a low efficiency in mobile VANETs, even fail. MANET routing algorithm is roughly divided into two categories, namely table driven routing protocol and on-demand routing protocol. It is due to the particularity of driving cars on the road. So how to improve network routing protocol in the performance is now a challenging problem. The purpose of this article studies network routing mechanism based on wireless vehicular networks simulation method. On the basis of analyzing the performance of typical routing protocols in MANET, such as DSDV, AODV and DSR, the improved scheme of AODV on-demand routing algorithm is put forward.


2005 ◽  
Vol 11 (1-2) ◽  
pp. 21-38 ◽  
Author(s):  
Yih-Chun Hu ◽  
Adrian Perrig ◽  
David B. Johnson

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