End-to-End Delay Behavior in the Internet

2006 ◽  
Author(s):  
Li Tang ◽  
Hui Zhang ◽  
Jun Li ◽  
Yanda Li
Keyword(s):  
The Internet ◽  
End To End Delay ◽  
End To End

scholarly journals Research on Cooperative Communication Strategy and Intelligent Agent Directional Source Grouping Algorithms for Internet of Things

2019 ◽  
Vol 11 (11) ◽  
pp. 233
Author(s):  
Zou ◽  
Zhang ◽  
Yi
Keyword(s):  
Internet Of Things ◽  
Cooperative Communication ◽  
Intelligent Agent ◽  
The Internet ◽  
End To End Delay ◽  
Multi Agent ◽  
End To End ◽  
Directional Source ◽  
The Internet Of Things ◽  
Cooperative Nodes

In order to improve the network layer of the Internet of things to improve transmission reliability, save time delay and energy consumption, the Internet of things cooperative communication and intelligent agent technology were studied in this paper. In cooperative communication, a new cooperative communication algorithm KCN (k-cooperative node), and a reliability prediction model are proposed. The k value is determined by the end-to-end reliability. After k cooperative nodes are selected, other nodes enter dormancy. In aggregate traffic allocation, game theory is used to model the traffic equilibrium and end-to-end delay optimization scenarios. In practice, the optimal duty cycle can be calculated, which makes some cooperative nodes enter an idle state to save energy. Under the premise of guaranteeing end-to-end delay, it is shown that the reliability of the proposed KCN algorithm is better than that of the other existing routing protocols. In the aspect of intelligent agent, a directional source grouping algorithm D-MIP is proposed. This algorithm studies the routing problem of multi-agent parallel access to multiple source nodes. A directed source packet multi-agent routing planning algorithm is proposed. The iterative algorithm of each source node is limited to a sector, and the optimal intelligent agent route is obtained by selecting an appropriate angle. Compared with other algorithms, it is shown through a lot of simulated results that energy consumption and time delay has been saved by the proposed D-MIP algorithm.

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

Catechize Global Optimization through Leading Edge Firefly Based Zone Routing Protocol

2020 ◽  
Vol 13 (2) ◽  
pp. 147-157 ◽  
Author(s):  
Neha Sharma ◽  
Sherin Zafar ◽  
Usha Batra
Keyword(s):  
Global Optimization ◽  
Routing Protocol ◽  
Firefly Algorithm ◽  
Leading Edge ◽  
Packet Delivery Ratio ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Zone Routing Protocol ◽  
End To End Delay ◽  
End To End

Background: Zone Routing Protocol is evolving as an efficient hybrid routing protocol with an extremely high potentiality owing to the integration of two radically different schemes, proactive and reactive in such a way that a balance between control overhead and latency is achieved. Its performance is impacted by various network conditions such as zone radius, network size, mobility, etc. Objective: The research work described in this paper focuses on improving the performance of zone routing protocol by reducing the amount of reactive traffic which is primarily responsible for degraded network performance in case of large networks. The usage of route aggregation approach helps in reducing the routing overhead and also help achieve performance optimization. Methods: The performance of proposed protocol is assessed under varying node size and mobility. Further applied is the firefly algorithm which aims to achieve global optimization that is quite difficult to achieve due to non-linearity of functions and multimodality of algorithms. For performance evaluation a set of benchmark functions are being adopted like, packet delivery ratio and end-to-end delay to validate the proposed approach. Results: Simulation results depict better performance of leading edge firefly algorithm when compared to zone routing protocol and route aggregation based zone routing protocol. The proposed leading edge FRA-ZRP approach shows major improvement between ZRP and FRA-ZRP in Packet Delivery Ratio. FRA-ZRP outperforms traditional ZRP and RA-ZRP even in terms of End to End Delay by reducing the delay and gaining a substantial QOS improvement. Conclusion: The achievement of proposed approach can be credited to the formation on zone head and attainment of route from the head hence reduced queuing of data packets due to control packets, by adopting FRA-ZRP approach. The routing optimized zone routing protocol using Route aggregation approach and FRA augments the QoS, which is the most crucial parameter for routing performance enhancement of MANET.

Security based on Received Signal Strength in Localization for Underwater Sensor Networks

2016 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Karamjeet Kaur ◽  
Gianetan Singh Sekhon
Keyword(s):  
Sensor Networks ◽  
Threshold Value ◽  
Critical Issue ◽  
Sensor Nodes ◽  
Underwater Sensor Networks ◽  
Research Subjects ◽  
Malicious Nodes ◽  
Intermediate Node ◽  
End To End Delay ◽  
End To End

Underwater sensor networks are envisioned to enable a broad category of underwater applications such as pollution tracking, offshore exploration, and oil spilling. Such applications require precise location information as otherwise the sensed data might be meaningless. On the other hand, security critical issue as underwater sensor networks are typically deployed in harsh environments. Localization is one of the latest research subjects in UWSNs since many useful applying UWSNs, e.g., event detecting. Now day’s large number of localization methods arrived for UWSNs. However, few of them take place stability or security criteria. In purposed work taking up localization in underwater such that various wireless sensor nodes get localize to each other. RSS based localization technique used remove malicious nodes from the communication intermediate node list based on RSS threshold value. Purposed algorithm improves more throughput and less end to end delay without degrading energy dissipation at each node. The simulation is conducted in MATLAB and it suggests optimal result as comparison of end to end delay with and without malicious node.

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