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| Optimal bandwidth scheduling of networked control systems (NCSs) in accordance with jitter |
| BAI Tao, WU Zhi-ming, YANG Gen-ke |
| Department of Automation, Shanghai Jiaotong University, Shanghai 200030, China; Department of Automation, Taiyuan Heavy Machinery Institute, Taiyuan 030024, China |
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Abstract Network-induced delay and jitter are key factors causing performance degradation and instability of NCSs (networked control systems). The relationships between the sampling periods of the control loops, network-induced delay and jitter were studied aimed at token-type networks. A jitter-dependent optimal bandwidth scheduling algorithm for NCSs is proposed, which tries to achieve a tradeoff between bandwidth occupancy and system performance. Simulation tests proved the effectiveness of this optimal scheduling algorithm.
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Received: 22 April 2004
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