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This paper introduces to the NewCAS 2016 Special Session on Ultra-Wideband Radios. The aim of this introductory paper is, firstly, to analyze the obstacles and challenges which have been addressed to date. For that purpose, it recaps some of the major developments emerged in the last decade in the area of ultra-wideband radios, especially for localization. Then, together with other papers of this...
This forum covers the greatest calibration and dynamic matching techniques for data converters, showing the way these have changed modern transceivers and applications.
Cognitive Radio (CR) technology is one of the favorable technology to efficiently deploy the underutilized frequency spectrum. Currently, the Federal Communications Commission (FCC) allowed TV white space (TVWS) which should protect the licensed user communication to utilize for data communication. The first actual deployment of communication system operating on TVWS is implemented in our group. However,...
We developed, implemented and tested a Nano-power Wake Up Radio mainly intended for Wireless Body Area Networks (WBANs), but it can be also used in other types of low power wireless networks. The radio was tested for power consumption and robustness to communication interferences from a wireless devices commonly found around the person carrying a WBAN. Results show that our radio has significantly...
We consider a class of single hop wireless sensor networks in which the sensor nodes collect data periodically and transmit it to a sink. To reduce the complexity, cost and energy consumption of the nodes we propose the use of an asymmetric transceiver model in which the sensor nodes can transmit to the sink using standard physical layer modulation schemes that support relatively high data rates but...
Development of reconfigurable RF resembles the Quest for the Holy Grail. It was started a long time ago; interesting developments have been achieved but it looks like it will never finish. However, as more and more microelectronic markets are under intense pressure, the need for reconfigurable RF systems is constantly growing. This paper aims at describing all current evolutions which push towards...
Ultra wide band (UWB) is an appropriate candidate used into the physical layer of the wireless body area networks (WBAN). In this paper, a novel UWB transreceiver structure is presented, where a Miller encoder is adopted in the transmitter side and a non-coherent detection scheme is used in the receiver side. Since the power spectral density (PSD) of the UWB signal plays a major role in the coexistence...
In this paper, we address the issue of transmission power control (TPC) in wireless ad hoc networks. Power control plays an important role in energy saving and network performance enhancement. However, the existing TPC schemes either face the problem of hidden and exposed terminal or have additional hardware requirements. We propose a novel distributed power control protocol, called Receiver Initiated...
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