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Performance evaluation of wireless networked control system via IEEE 802.15.4 with time-triggered CSMA/CA algorithm
被引:0
|作者:
Jee-Hun Park
Kyoung-Nam Ha
Suk Lee
Kyung-Chang Lee
机构:
[1] Pusan National University,School of Mechanical Engineering
[2] Korea Institute of Industrial Technology 1274,Department of Control and Measurement Engineering
[3] Pukyong National University,undefined
来源:
关键词:
Wireless industrial network;
Wireless networked control system;
Industrial quality-of-service (QoS);
IEEE 802.15.4;
Network delay;
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学科分类号:
摘要:
This paper focuses on performance evaluation of wireless networked control system (NCS) via IEEE 802.15.4 with time-triggered contention-based carrier sensing multiple access with collision (CSMA/CA) algorithm to satisfy the industrial quality-of-service (QoS). Although the IEEE 802.15.4 is considered to a promising protocol for wireless NCS, its performance is not stable and its delay is not bounded under heavy traffic because its medium access control (MAC) is based on the contention-based CSMA/CA scheme. As an alternative approach to avoid these limitations, this paper presents a time-triggered CSMA/CA algorithm for IEEE 802.15.4 non-beacon mode that relies on a time division multiplexing access (TDMA) method. The time-triggered CSMA/CA algorithm for IEEE 802.15.4 non-beacon mode was implemented an experimental wireless NCS, and its control performance was compared with conventional CSMA/CA algorithm. Based on the experimental results, the time-triggered CSMA/CA algorithm is a feasible alternative for wireless NCS.
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页码:857 / 864
页数:7
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