Toward Ubiquitous Networking QoS-aware Residential Gateway with Embedded ZigBee-based Network

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Toward Ubiquitous Networking: QoS-aware Residential Gateway with

Embedded ZigBee-based Network

Pei-Chen Tseng

1

_{Rung-Shiang Cheng}

2

Yi-Cheng Chang

1

_{Wen-Shyang Hwang}

3 1_{Department of Information Engineering and Informatics, Tzu Chi College of Technology}

Hualien 970, Taiwan

{peichen, s9743028}@tccn.edu.tw

2_{Department of Computer and Communication, Kun Shan University}

Tainan 710, Taiwan

[email protected]

3_{Department of Electrical Engineering, National Kaohsiung University of Applied Sciences}

Kaohsiung 807, Taiwan

[email protected]

Received 6 May 2012; Revised 27 May 2012; Accepted 30 May 2012

Abstract. Society is trending toward ubiquitous networking. This study thus presents a prototype but fully functional system which, in theory, could be expanded worldwide, expediting development of the Internet of Things. Our earlier QoS-aware residential gateway (EmQRG) for real-time class-based queuing bandwidth management is reviewed and experimentally demonstrated in a novel embodiment which includes a FDIXP425-DevPlatform integrating the EmQRG with a wireless M2M ZigBee-based temperature/humidity monitoring network (FT-6250 + FT-6251’s), which is treated experimentally as a fire alarm system. When any temperature/humidity module exceeds a preset value, the composite system activates a warning light bulb and sends warning messages to designated recipients. This emergency signal has top EmQRG transmis-sion priority. Tests in the context of streaming video and simulated background internet traffic under light to heavy network congestion and bottlenecking show consistently good QoS for both the alarm and the stream-ing media. The emergency alerts are received immediately under all conditions. The warnstream-ing light bulb turns off when temperature falls below the threshold value. Discussion shows that the EmQRG network can con-tain other embedded EmQRG networks and be embedded within higher EmQRG-based networks. The pre-sented system is cost-effective, easy-to-use, easy-to-implement and completely implementable with available hardware and software.

Keywords: embedded system, QoS, M2M, IoT, home network, wireless sensor network

Acknowledgement

This research was supported by National Science Council of Taiwan under project number NSC

100-2221-E-277-001.

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