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On-line fault detection problem for a type of SISO networked control systems was studied. The delay of forward loop can be avoided by located the smart nodes. A self-adaptive predicted technology was used to compensate the delay of feedback loop. The networked induced delay can be obtained by time-stamp. A fault detection algorithm for a type of fault was presented to monitor the NCS on-line. The...
We address the problem of routing for multi-radio multi-channel wireless mesh networks, and propose a novel routing metric, named DARM. Compared with the prior routing metrics focus on the network throughput, DARM aims to minimize the end-to-end delay, which is a significant requirement for multimedia applications. Our routing metric captures the effects of variation in link loss-ratio, the length...
The rapid development of wireless sensor network and RFID technologies offers a wide range of novel applications and services. In this paper, we present a two-layered wireless network for warehouses and supermarkets to monitor goods storage and sale, and assist for quality management and market analysis. The hierarchical architecture uses IEEE 802.15.4a impulse ultra-wideband radio (IR-UWB) communication...
This paper is concerned with the asymptotic stability for Takagi-Sugeno (T-S) fuzzy systems with interval time-varying delay. By constructing an appropriate type of fuzzy weighting-dependent Lyapunov functional and adopting the free-weighting matrix method, a new delay-dependent stability criterion is derived in terms of linear matrix inequalities(LMIs). Due to the reservation of some useful terms...
In standard backfill algorithms, a job will be terminated immediately it has been processed for its estimated runtime. This drives users not to provide tight estimates to make their jobs to be scheduled earlier but at the risk of being killed. This paper presents an enhanced mechanism to tolerate underestimated jobs by continuing processing them on condition that they will not delay any other running...
The capacity region of the finite-state multiple access channel (FS-MAC) with feedback that may be an arbitrary time-invariant function of the channel output samples is considered. We provided a sequence of inner and outer bounds for this region. These bounds are shown to coincide, and hence yield the capacity region for two cases of FS-MACs: (1) when the state process is stationary and ergodic and...
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