An Evolving GPSR Protocol in Urban Roundabout Scenario

2014 ◽  
Vol 596 ◽  
pp. 833-837
Author(s):  
Hai Yang Yu ◽  
Hua Min Yang ◽  
Xiao Qiang Di ◽  
Liang Dong Qu

According to the research of VANET routing protocol, an improved protocol SN-GPSR has been proposed. It is based on the sensitive nodes. The nodes select routing through a special position and steady speed under GPSR protocol. In a crossroads scenario, we designed a vehicular mobility model and simulated it using NS-2. By analyzing the results, the network performance parameters of SN-GPSR have improved above the GPSR, such as delay, packet loss and others.

2021 ◽  
Vol 8 (2) ◽  
pp. 235
Author(s):  
Rahmadhan Gatra ◽  
Bambang Sugiantoro

<p>Penelitian ini menjelaskan tentang perbandingan <em>routing</em> sebagai salah satu manajemen jaringan komputer. Tujuan penelitian ini adalah melakukan analisis terhadap protokol <em>routing</em> statik dengan <em>routing</em> dinamis OSPF pada jaringan komputer di lingkungan Universitas Islam Negeri Sunan Kalijaga Yogyakarta dengan metode studi literatur dan wawancara dalam pengumpulan data. Penelitian dibuat berdasarkan pemodelan (simulasi) berbasis aplikasi EVE-NG. Performa yang dihasilkan dari perbandingan <em>routing </em>tersebut diukur menggunakan parameter QoS meliputi nilai dari <em>throughput, packet loss, delay</em>, dan <em>jitter</em>. Pengujian kinerja jaringan menggunakan skenario normal dan sibuk pada routing statik dan dinamis OSPF antara lain skenario normal <em>throughput</em> untuk <em>routing</em><em> </em>protokol statik sebanyak <em>598.10Bps</em> dan nilai untuk OSPF sebanyak <em>598.34Bps</em>, sedangkan skenario sibuk untuk <em>routing</em> protokol statik sebanyak <em>598.82Bps</em> dan nilai untuk OSPF sebesar <em>597.58Bps</em>. <em>Packet loss</em> skenario normal <em>routing</em> protokol statik sebanyak <em>0.2</em><em>3</em><em>%</em> dan nilai untuk OSPF sebanyak <em>0.27%</em> serta skenario sibuk untuk <em>routing</em> protokol statik sebanyak <em>0.2</em><em>4</em><em>%</em> dan OSPF sebanyak <em>0.26%</em>. Nilai <em>delay</em> skenario normal <em>routing</em> statik protokol sebanyak <em>59.</em><em>39</em><em>ms</em> dan nilai untuk OSPF sebanyak <em>59.3</em><em>6</em><em>ms</em>, sedangkan skenario sibuk untuk <em>routing</em> protokol statik sebanyak <em>59.</em><em>32</em><em>ms</em> dan nilai untuk OSPF sebanyak <em>59.44ms</em>. <em>Jitter</em> menggunakan skenario normal protokol <em>routing</em> statik sebanyak <em>0.98ms</em> dan nilai untuk OSPF sebanyak <em>0.98ms</em> serta skenario sibuk <em>routing</em> protokol statik sebanyak <em>0.98ms</em> dan nilai untuk OSPF sebanyak <em>0.99ms</em>. Parameter QoS menunjukkan bahwa <em>throughput</em> dan <em>delay</em> maka <em>routing</em> statik lebih optimal dibandingkan OSPF pada skenario sibuk, sedangkan pada skenario normal dan sibuk<em> jitter </em>dan <em>packet loss</em> lebih optimal <em>routing</em> protokol statik.</p><p> </p><p><em><strong>Abstract</strong></em></p><p><em>This study describes the comparison of routing as one of computer network management. The purpose of this study is to analyze static routing protocols with OSPF dynamic routing on computer networks in the State Islamic University of Sunan Kalijaga Yogyakarta with literature study methods and interviews in data collection. The study was made based on modeling (simulation) based on EVE-NG applications. The performance resulting from the comparison of routing is measured using QoS parameters including the value of throughput, packet loss, delay, and jitter. Network performance testing uses normal and busy scenarios on static and dynamic OSPF routing, including normal throughput scenarios for static protocol routing as much as 598.10Bps and values for OSPF as much as 598.34Bps, while busy scenarios for static protocol routing as much as 598.82Bps and values for OSPF as 597.58 Bps. Normal packet routing scenario static routing protocols are 0.23% and OSPF values are 0.27% and busy scenarios for static protocol routing are 0.24% and OSPF are 0.26%. The normal scenario static routing protocol delay value is 59.39ms and the value for OSPF is 59.36ms, while the busy scenario for static protocol routing is 59.32ms and the value for OSPF is 59.44ms. Jitter uses a normal scenario of 0.98ms static routing protocol and 0.98ms for OSPF and 0.98ms for busy routing protocol scenarios and 0.99ms for OSPF. QoS parameters indicate that throughput and delay static routing is more optimal than OSPF in busy scenarios, whereas in normal and busy scenarios jitter and packet loss are more optimal static protocol routing.</em></p><p><em><strong><br /></strong></em></p>


Author(s):  
Shipra Shukla ◽  
Mahesh Kumar

This article describes how the current internet is a network of interconnected autonomous systems which is susceptible to route instability when transferring data. The BGP confederation is the essential intra-domain routing protocol that may cause instability on the Internet. So far, route instability has been widely studied for internal BGP. However, the existing routing policies such as APMS and H-SSPP are not adequate for the route stability of BGP confederations. In fact, these routing policies may degrade the network performance parameters in terms of the packet delivery ratio, convergence time, average throughput and the average end to end delay. Therefore, this article proposes the Flexible BGP Confederation Policy Management (FBCPM) to reduce the anomalies. The proposed approach detects the route instability in the networks and provides a policy to construct a stable network. The routing policy shrinks the route oscillations and forwarding loops. Furthermore, the simulation results confirm that the authors' proposed approach has improved network performance parameters compared to other existing approaches.


Author(s):  
Amolkirat Singh ◽  
Guneet Saini

Many people lose their life and/or are injured due to accidents or unexpected events taking place on road networks. Besides traffic jams, these accidents generate a tremendous waste of time and fuel. Undoubtedly, if the vehicles are provided with timely and dynamic information related to road traffic conditions, any unexpected events or accidents, the safety and efficiency of the transportation system with respect to time, distance, fuel consumption and environmentally destructive emissions can be improved. In the field of computer and information science, Vehicular Ad hoc Network (VANET) have recently emerged as an effective tool for improving road safety through propagation of warning messages among the vehicles in the network about potential obstacles on the road ahead. VANET is a research area which is in more demand among the researchers, the automobile industries and scientists to discover about the loopholes and advantages of the vehicular networks so that efficient routing algorithms can be developed which can provide reliable and secure communication among the mobile nodes.In this paper, we propose a Groundwork Based Ad hoc On Demand Distance Vector Routing Protocol (GAODV) focus on how the Road Side Units (RSU’s) utilized in the architecture plays an important role for making the communication reliable. In the interval of finding the suitable path from source to destination the packet loss may occur and the delay also is counted if the required packet does not reach the specified destination on time. So to overcome delay, packet loss and to increase throughput GAODV approach is followed. The performance parameters in the GAODV comes out to be much better than computed in the traditional approach.


2021 ◽  
Vol 13 (3) ◽  
pp. 63
Author(s):  
Maghsoud Morshedi ◽  
Josef Noll

Video conferencing services based on web real-time communication (WebRTC) protocol are growing in popularity among Internet users as multi-platform solutions enabling interactive communication from anywhere, especially during this pandemic era. Meanwhile, Internet service providers (ISPs) have deployed fiber links and customer premises equipment that operate according to recent 802.11ac/ax standards and promise users the ability to establish uninterrupted video conferencing calls with ultra-high-definition video and audio quality. However, the best-effort nature of 802.11 networks and the high variability of wireless medium conditions hinder users experiencing uninterrupted high-quality video conferencing. This paper presents a novel approach to estimate the perceived quality of service (PQoS) of video conferencing using only 802.11-specific network performance parameters collected from Wi-Fi access points (APs) on customer premises. This study produced datasets comprising 802.11-specific network performance parameters collected from off-the-shelf Wi-Fi APs operating at 802.11g/n/ac/ax standards on both 2.4 and 5 GHz frequency bands to train machine learning algorithms. In this way, we achieved classification accuracies of 92–98% in estimating the level of PQoS of video conferencing services on various Wi-Fi networks. To efficiently troubleshoot wireless issues, we further analyzed the machine learning model to correlate features in the model with the root cause of quality degradation. Thus, ISPs can utilize the approach presented in this study to provide predictable and measurable wireless quality by implementing a non-intrusive quality monitoring approach in the form of edge computing that preserves customers’ privacy while reducing the operational costs of monitoring and data analytics.


Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 621
Author(s):  
Maghsoud Morshedi ◽  
Josef Noll

Video on demand (VoD) services such as YouTube have generated considerable volumes of Internet traffic in homes and buildings in recent years. While Internet service providers deploy fiber and recent wireless technologies such as 802.11ax to support high bandwidth requirement, the best-effort nature of 802.11 networks and variable wireless medium conditions hinder users from experiencing maximum quality during video streaming. Hence, Internet service providers (ISPs) have an interest in monitoring the perceived quality of service (PQoS) in customer premises in order to avoid customer dissatisfaction and churn. Since existing approaches for estimating PQoS or quality of experience (QoE) requires external measurement of generic network performance parameters, this paper presents a novel approach to estimate the PQoS of video streaming using only 802.11 specific network performance parameters collected from wireless access points. This study produced datasets comprising 802.11n/ac/ax specific network performance parameters labelled with PQoS in the form of mean opinion scores (MOS) to train machine learning algorithms. As a result, we achieved as many as 93–99% classification accuracy in estimating PQoS by monitoring only 802.11 parameters on off-the-shelf Wi-Fi access points. Furthermore, the 802.11 parameters used in the machine learning model were analyzed to identify the cause of quality degradation detected on the Wi-Fi networks. Finally, ISPs can utilize the results of this study to provide predictable and measurable wireless quality by implementing non-intrusive monitoring of customers’ perceived quality. In addition, this approach reduces customers’ privacy concerns while reducing the operational cost of analytics for ISPs.


2018 ◽  
Vol 7 (3.16) ◽  
pp. 76
Author(s):  
Deepak . ◽  
Rajkumar .

Vehicular ad hoc networks is an emerging area for researchers to provide intelligent transportation system to the society. It is due to the wide area of applications of VANETs interest is developed among the people from different countries to be a part of it. Therefore many projects had been started and also presently working to implement VANETs in real world scenario. The main challenge in its implementation is to provide a secure mechanism against the various attacks and threats that have the capability to bring the network performance significantly down. In this paper to overcome different types of authentication based attacks in VANETs an ECDSA based secure routing protocol SE-AODV is proposed with security features incorporated in already existing AODV routing protocol. The performance of SE-AODV is evaluated and compared with original AODV and AODV with black hole attack (BH-AODV). The SE-AODV shows better performance with the parameters used for comparison with the variation in vehicle density, speed of vehicles and simulation time. 


2014 ◽  
Vol 10 (1) ◽  
pp. 14
Author(s):  
B. Anantasatya Adhi ◽  
Ruki Harwahyu ◽  
Abdusy Syarif ◽  
Harris Simaremare ◽  
R. Fitri Sari ◽  
...  

AODV routing protocol facilitates changing and simple-to-setup network environment. It helps setting up a network without sufficient infrastructure, such as in disaster area. Development of AODV protocol has gathered a worldwide research interest. However, not many researches implement AODV routing protocol in real mobile nodes and real MANET. In addition, real implementation deals with other works concerning underlying protocol, firmware and hardware configuration, as well as detailed topology both in logical and physical arrangement. This work aims to implements Ad-hoc On-demand Distant Vector – particularly University of Indonesia AODV (AODV-UI) routing protocol on low-end inexpensive generic wireless routers as a proof of concept. AODV-UI is an improved version of AODV routing protocol that implements gateway interconnection and reverse route capability. This routing protocol has been previously successfully tested in NS-2. In this work, current AODV-UI protocol is ported to OpenWRT + MIPS (Microprocessor without Interlocked Pipeline Stages) little endian architecture then tested on the real networking environment. Underlying media access layer is also altered to provide the protocol greater control over the network. Performance of this implementation is measured in terms of energy consumption, routing overhead, end-to-end delay, protocol reliability and packet delivery ratio.


Author(s):  
Suha Sahib Oleiwi ◽  
Ghassan N. Mohammed ◽  
Israa Al_Barazanchi

The wireless body area network (WBAN) has been proposed to offer a solution to the problem of population ageing, shortage in medical facilities and different chronic diseases. The development of this technology has been further fueled by the demand for real-time application for monitoring these cases in networks. The integrity of communication is constrained by the loss of packets during communication affecting the reliability of WBAN. Mitigating the loss of packets and ensuring the performance of the network is a challenging task that has sparked numerous studies over the years. The WBAN technology as a problem of reducing network lifetime; thus, in this paper, we utilize cooperative routing protocol (CRP) to improve package delivery via end-to-end latency and increase the length of the network lifetime. The end-to-end latency was used as a metric to determine the significance of CRP in WBAN routing protocols. The CRP increased the rate of transmission of packets to the sink and mitigate packet loss. The proposed solution has shown that the end-to-end delay in the WBAN is considerably reduced by applying the cooperative routing protocol. The CRP technique attained a delivery ratio of 0.8176 compared to 0.8118 when transmitting packets in WBAN.


Author(s):  
Unung Verawardina

In a dynamic routing setting a routing protocol is required to perform the settings to find the shortest and best path. Routing protocols are of two types: vector distance and link state. Use of EIGRP routing that includes long-range vectors and link state OSPF Link link state coverage, peg well to be implemented in complex network because it can adapt well. In this research is the method used for routing and speed of time available EIGRP routing and OSPF routing through simulator GNS3 and wireshark application, then analyze the difference of peformance with speed of routing table and speed of time. While for Quality of Service (QoS) compare network service quality from EIGRP and OSPF routing which include delay, packet loss, and throughput. Based on the results of the research shows the EIGRP routing table is better in the selection path, EIGRP smaller time tansfer data then its data transfer faster than the OSPF. Overall Quality Of Service (Qos) delay, packetloss and throughput on EIGRP and OSPF are well balanced and good.


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