Abstract

The availability of smart sensors equipped CMOS cameras made it possible to capture and transmit multimedia data ubiquitously. The real-time performance is essential in many applications including surveillance and healthcare monitoring in multimedia sensor networks (MSNs). One of the real-time performance indicators is to transmit the packets within their deadline. Furthermore, in information-rich, battery-powered, and resource-constrained MSNs, it is a challenging problem to extend network lifetime decreasing communication cost. In previous researches, periodic message exchange for neighbor information maintenance leads to reducing network lifetime. This paper presents a power-aware data transmission for real-time communication in MSNs. The proposed scheme not only provides real-time performance, but also conserves energy consumption through efficient transmission and without periodic message exchange. The simulation results show the effectiveness of the proposed scheme in achieving the desired deadline success ratio and prolonging the network lifetime.

Highlights

  • Advances in microelectromechanical systems (MEMS) technology and wireless communications have put forward the development of smart sensors which handle the various kinds of data and consist of sensing, data processing, and communicating components [1]

  • To build up the neighbor information efficiently, this is, without periodic message exchange, we introduce a simple and efficient data dissemination mechanism in the beginning as follows: the proposed scheme transmits data based on a constrained flooding-based mechanism which brings down the redundant transmission by reducing the number of the forwarding nodes

  • The average energy consumption is closely related to network lifetime

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Summary

Introduction

Advances in microelectromechanical systems (MEMS) technology and wireless communications have put forward the development of smart sensors which handle the various kinds of data and consist of sensing, data processing, and communicating components [1]. The objective of the proposed scheme provides real-time data delivery meeting the deadline and extends the network lifetime through energy conservation. To build up the neighbor information efficiently, this is, without periodic message exchange, we introduce a simple and efficient data dissemination mechanism in the beginning as follows: the proposed scheme transmits data based on a constrained flooding-based mechanism which brings down the redundant transmission by reducing the number of the forwarding nodes. The proposed scheme provides the greedy forwarding maximizing the distance between consecutive forwarding nodes It causes improved real-time performance because delay is proportional to the number of nodes on transmission path between source and SINK.

Related Work
Network Model and Definition
Power-Aware Data Transmission for Real-Time Communication in MSNs
Performance Evaluation
Simulation Results
Conclusion and Future Work
Full Text
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