Title

Congestion avoidance in wireless sensor network using software defined network

ORCID Identifiers

0000-0002-5166-4873

Document Type

Article

Source of Publication

Computing

Publication Date

1-1-2021

Abstract

Wireless sensor network (WSN) is a core component of multiple smart city applications. Utilizing the same WSN for multiple applications helps reduce cost. However, satisfying quality of service requirements of these independent applications is very challenging. For instance, uncoordinated path selection for data dissemination may result in the formation of queues in the WSN violating end-to-end delay requirements of several applications. To this end, we propose a software defined network based approach to ensure satisfaction of individual delay constraints while ensuring minimal increase in the average queue length of the WSN. The approach utilizes a logically centralized controller to generate a comprehensive view of the whole network in a scalable manner. We develop several graph theoretic algorithms to reduce the number of nodes and edges in the communication paths and to identify the most suitable communication paths for each application so that end-to-end delays are minimized. The evaluations demonstrate that our approach performs up to 34% better than existing works and up to 14% worst in comparison to the optimal solution for different topologies, network sizes, and end-to-end delay requirements. Moreover, performance of the proposed graph theoretic algorithms is also measured w.r.t. time.

ISSN

0010-485X

Publisher

Springer Science and Business Media LLC

Disciplines

Computer Sciences

Keywords

Congestion control, Quality of service, Smart city, Software defined networking, Wireless sensor network

Scopus ID

85115215413

Indexed in Scopus

yes

Open Access

no

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