Jurnal

Improving control performance by minimizing jitter in RT-Wifi networks

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Wireless networked control systems have received significant attention due to their great advantages in enhanced system mobility, and reduced deployment and maintenance cost. To support a wide range of high-speed wireless control applications, we presented in our prior work the design and implementation of a flexible real-time high-speed wireless communication platform called RT-WiFi. RT-WiFi currently provides up to 6kHz sampling rate and deterministic timing guarantee on packet delivery. While guaranteed delivery latency is essential for networked control, control performance is also impacted by communication jitter and other QoS parameters. To reduce jitter, a flexible network manager is needed to control network-wide scheduling of packet transportation. In this paper, we present an RT-WiFi network manager design and propose efficient solutions for two fundamental RT-WiFi network management problems. To improve control performance in networked control systems, our RT-WiFi network manager is designed to generate data link layer communication schedule with minimum jitter under both static and dynamic network topologies. In order to minimize network management overhead, an efficient data structure called S-tree is invented to manage the communication requests to deal with network dynamics. We have implemented the RT-WiFi network manager, and validated its network and control performance through extensive experiments with a real application.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

004.64 LEN i

Penerbit

USA : IEEE., 2014

Deskripsi Fisik

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Bahasa

English

ISBN/ISSN

978-1-4799-7288-3

Klasifikasi

004.64 LEN i

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Wireless_communication
Schedules
Jitter
Heuristic_alghoritms
Harmonic_analysis
Realtime_systems
Wireless sensor networks

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Versi lain/terkait

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