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This paper proposes an efficient method for optimal joint precoding-postcoding design in a multi-input multi-output (MIMO) multi-sensor noisy observation context — a problem that is of great interest to the multi-relay MIMO transmission system. A set of wireless sensors, each provisioned with a different number of antennas and a different power constraint, precode and send their noisy observations...
This paper considers wireless sensor networks with limited bandwidth, where sensors must transmit sensing results that are distorted with noise uncertainty, to the fusion center reliably and efficiently. A class of rate-1 linear complex-field coding (CFC) transmission strategy is developed, to effectively protect the noisy observation of the signals without any bandwidth expansion. Pairwise error...
This paper introduces an infusion monitoring system, aiming to reduce potential safety hazard of manually-controlled infusion. Dripping speed and height of the liquid level serving as monitoring signal, all data is collected by infrared as well as laser sensors. Information will then be sent to terminal monitoring interface via wireless transmission module. When the drop appears too fast or height...
Two differential dual-frequency antennas for wireless communication are demonstrated in this paper. In the proposed antennas, electromagnetic energy is magnetically coupled from the feed line to the antenna through the slot in the ground plane. Simulation results show that the impedance bandwidths meet the bandwidth requirement for wireless communication. Meanwhile, good radiation performances are...
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