scholarly journals A Decentralized Traffic Management Approach for Ambient Networks Environments

Author(s):  
María Ángeles Callejo-Rodríguez ◽  
Jorge Andrés-Colás ◽  
Gerardo García-de-Blas ◽  
Francisco Javier Ramón-Salguero ◽  
José Enríquez-Gabeiras
Author(s):  
Hnin Thiri Zaw ◽  
AungHtein Maw

Multipath routing is to distribute the incoming traffic load among available paths between source and destination hosts. Instead of using the single best path, multipath scheme can avoid the congested path. Equal Cost Multi-Path (ECMP) performs the static traffic splitting based on some tuples of the packet headers. The limitation of ECMP does not consider the network parameters such as bandwidth and delay. Unlike the traditional networks, Software-Defined Network (SDN) has many advantages to support dynamic multipath forwarding due to its special characteristics, such as separation of control and data planes, global centralized control, and programmability of network behavior. In this paper, we propose a new architecture design for dynamic multipath-based traffic management approach in the SDN, which comprises of five components: detecting long (elephant) flow, computing shortest paths, estimating end-to-end delay and bandwidth utilization, calculating least cost path and rerouting traffic flow from the ongoing path to the best path. The simulation environment is created through the usage of Mininet emulator and ONOS controller. The evaluation outcomes show that the proposed traffic management method outperforms the ECMP and reactive forwarding method for both TCP and UDP traffic.


2007 ◽  
Author(s):  
Jorge Rodriguez Sanchez ◽  
Maria L. Garcia Osma ◽  
Antonio J. Elizondo Armengol

Author(s):  
Ronish Joyekurun ◽  
Paola Amaldi ◽  
William Wong

We report in this ongoing study on the resilience of Air Traffic Management approach operations by considering a collaborative work unit consisting of the Executive Controller, the Pilot Flying and the Pilot Non-Flying — the behaviour of the team is hypothetically structured by, a) the divided labour strategies of approach control and, b) an adaptiveness to organisational objectives of efficiency. Normal Accident Theory is used as a framework for analysing 348 verbal exchanges from five aviation occurrences. We make use of navigation in hazardous atmospheric situations, as a safety-boundary condition to inform on the behaviour of operator teams. Five broad activity-related themes leading to four detailed collaborative themes were obtained: 1) Monitoring of activities, 2) Redirecting attention to perceived priorities, 3) Implicit redistribution of responsibilities, and 4) Explicit assignation of decisional activities. We conclude that the dynamic interactions within the team during hazardous approaches indicate a functional unit of collaborative work.


2022 ◽  
pp. 803-824
Author(s):  
Basetty Mallikarjuna

In this article, the proposed feedback-based resource management approach provides data processing, huge computation, large storage, and networking services between Internet of Things (IoT)-based Cloud data centers and the end-users. The real-time applications of IoT, such as smart city, smart home, health care management systems, traffic management systems, and transportation management systems, require less response time and latency to process the huge amount of data. The proposed feedback-based resource management plan provides a novel resource management technique, consisting of an integrated architecture and maintains the service-level agreement (SLA). It can optimize energy consumption, response time, network bandwidth, security, and reduce latency. The experimental results are tested with the IFogSim tool kit and have proved that the proposed approach is effective and suitable for smart communication in IoT-based cloud.


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