End-to-end packet delay and loss behavior in the internet

1993 ◽  
Author(s):  
Jean-Chrysotome Bolot
Keyword(s):  
Packet Delay ◽  
The Internet ◽  
End To End

scholarly journals Load Balanced Fuzzy Control based Adaptive Gateway Discovery for Ubiquitous Internet Access in MANET

2015 ◽  
Vol 14 (12) ◽  
pp. 6334-6342
Author(s):  
GARGI BHARDWAJ ◽  
UDAI SHANKAR
Keyword(s):  
Network Performance ◽  
Ad Hoc ◽  
Packet Delay ◽  
Traffic Load ◽  
The Internet ◽  
Mobile Nodes ◽  
Hop Count ◽  
Request Message ◽  
Gateway Discovery ◽  
End To End

Integrating MANETs (Mobile Ad-hoc Networks) nodes to the Internet require either a connection to the Internet or they can connect to the Internet through the Internet gateways. For the second case if a node in a MANET has discover the gateway to connect to the fixed hosts in the Internet and it can be done either by broadcasting a gateway discovery request message initiated by nodes itself or by broadcasting periodic gateway advertisement messages from the gateways. End to end packet delay and throughput are strongly dependent on the time needed to discover the gateways.Nodes in a MANET use number of hops as metric to select a path to a gateway, if all the nodes select its nearest gateway to access the Internet then there may be situations when the network performance degrades because some nodes along the path have too many packets waiting in the queue.This paper presents a novel solution to access internet through mobile nodes in ad hoc network. Here the gateway replies with an advertisement message which is broadcasted to the whole network instead of sending a unicast reply to the requesting node. The traffic load taken into account along a path in addition with minimum hop count to select an efficient gateway. The AODV routing protocol has been used for routing in the MANET domain.A new strategy of gateway discovery was investigated and impact of new metric on the gateway selection in NS-2 was observed. Simulation results show that the proposed scheme outperforms over the existing scheme with high throughput and lower end to end delay.

scholarly journals Analisis Karakteristik Teori Antrian Pada Aplikasi Wireless Fidelity Menggunakan Opnet Modeler 14.5

2015 ◽  
Vol 6 (4) ◽  
Author(s):  
Eko Fajar Cahyadi ◽  
Putra Utama Eka Sakti ◽  
Alfin Hikmaturokhman
Keyword(s):  
Quality Of Service ◽  
Packet Delay ◽  
The Internet ◽  
Video Conference ◽  
Best Effort ◽  
End To End Delay ◽  
End To End ◽  
Better Than ◽  
Delay Variation

Abstract. Wi-Fi areas are accessible in many places, it makes it easier to access the Internet rather than using LAN cable. On the other hand, the Internet itself is a best effort network, which means it does not provide Quality of Service (QoS) mechanism and no traffic classification. This study evaluates the performance of three scheduling methods, including FIFO, Priority Queuing (PQ), and Weighted Fair Queuing (WFQ), on video conference, VoIP and FTP services, implemented in ST3 Telkom campus networks. The results of packet end-to-end delay and packet delay variation for VoIP in WFQ theory scenario is better than the others, that is 171,717ms and 0,977ms. While in video conference services, the result of packet end-to-end delay and packet delay variation in WFQ theory is better than other queuing theory as well, 32,495ms and 7,207ms respectively. This is because the WFQ scheduling mechanism has bandwidth allocation that adapts well to the requirements of the services.Keywords: Wi-Fi, QoS, FIFO, PQ, WFQ Abstrak. Area Wi-Fi banyak kita jumpai di berbagai tempat, menjadikannya sebagai media akses internet yang lebih mudah untuk digunakan dibandingkan menggunakan kabel LAN. Di lain sisi, internet sendiri merupakan jaringan yang bersifat best effort, yang berarti tidak menyediakan mekanisme Quality of Service (QoS) dan tidak ada klasifikasi trafik layanan. Penelitian ini mengevaluasi mengenai performansi dari tiga metode scheduling, diantaranya FIFO, Priority Queuing (PQ), dan Weighted Fair Queuing (WFQ), pada layanan video conference, VoIP dan FTP, menggunakan topologi Wi-Fi kampus ST3 Telkom. Nilai packet end-to-end delay dan packet delay variation untuk VoIP pada skenario WFQ lebih baik dibandingkan teori antrian lain, yaitu sebesar 171,717ms dan 0,977ms secara berurutan. Pada video conference, nilai packet end-to-end delay dan packet delay variation WFQ juga lebih baik dibandingkan teori antrian lain, yaitu dengan nilai 32,495ms dan 7,207ms secara berurutan. Hal ini dikarenakan pada WFQ memiliki alokasi bandwidth yang disesuaikan dengan kebutuhan.Kata Kunci: Wi-Fi, QoS, FIFO, PQ, WFQ

End-to-end secure group communication for the Internet of Things

2021 ◽  
Vol 58 ◽  
pp. 102772
Author(s):  
André Lizardo ◽  
Raul Barbosa ◽  
Samuel Neves ◽  
Jaime Correia ◽  
Filipe Araujo
Keyword(s):  
Internet Of Things ◽  
Group Communication ◽  
The Internet ◽  
Secure Group Communication ◽  
End To End ◽  
The Internet Of Things

scholarly journals Predictive flow control for TCP-friendly end-to-end real-time video on the Internet

2002 ◽  
Vol 25 (13) ◽  
pp. 1230-1242 ◽  
Author(s):  
Yeali S. Sun ◽  
Fu-Ming Tsou ◽  
Meng Chang Chen
Keyword(s):  
Flow Control ◽  
Real Time ◽  
The Internet ◽  
Tcp Friendly ◽  
End To End
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