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Recent advances in antenna and RF circuit design have greatly reduced the crosstalk between the transmitter and receiver circuits on a wireless device, which enable radios to transmit and receive on the same frequency at the same time. Such a full duplex radio has the potential to double the spectral efficiency of a point-to-point radio link. However, the application of such a radio in current cellular...
One of the major tasks for achieving building automation is to implement an effective control strategy on the heating, ventilating and air conditioning (HVAC) systems. The HVAC system should be properly controlled to provide a relatively constant and comfortable temperature as well as fresh and filtered air with a comfortable humidity range to the buildings. In this work, a hierarchical control structure...
Improved spectral and energy efficiency are two key requirements for the fifth generation (5G) wireless communication systems. The inefficiency and non-linearity of traditional power amplifiers (PA) pose significant challenges to meet these requirements, especially for multicarrier modulation signals (MCM) with high peak to average power ratio (PAPR). In this paper, we study methods to improve the...
The rapid development of the theory and application makes it imperative to find the best strategies to improve the energy efficiency of wireless sensor networks. In this paper, we address the following question: given a multi-to-one wireless sensor network in physical space, what is the optimal routing strategy to enable the energy-efficiency of the network with regard to a given mission and a certain...
Intelligent buildings are a trend of next-generation's buildings, which facilitate intelligent control of the building in order to fulfill occupants' comfort demands. The primary objective in building control is to achieve a comfortable building environment with high energy efficiency. By dividing the whole building into several zones, a multi-zone building model is built for developing an effective...
In this paper a fuzzy adaptive comfort temperature (FACT) model has been proposed for the intelligent control of smart buildings. A multi-agent control system is applied for the energy management and building operation. Particle Swarm Optimization (PSO) is applied to optimize the set points based on the comfort zone. Integrating a grey predictor to predict outdoor temperature with the FACT model shows...
In this paper, a new control system with an intelligent optimizer is developed which can be applied to energy and comfort management in the smart and energy-efficient buildings. Hierarchical multi-agent theory is used to build this control system, which contains agent-controllers at two levels - a central coordinator-agent at the higher level and multiple local controller-agents at the lower level...
One of the most critical issues in energy-limited wireless sensor networks (WSN) is how to make the most of energy efficient strategies to improve system performance. In this paper the system performance is represented by energy-efficiency and data-efficiency. First the case where all the wireless nodes are distributed uniformly is considered and an optimization problem is set up as well as resolved...
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