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This paper systematically investigates the novel idea of applying the next generation wireless technology, cognitive radio network, for the smart grid. In particular, system architecture, algorithms, and hardware testbed are studied. A microgrid testbed supporting both power flow and information flow is also proposed. Control strategies and security considerations are discussed. Furthermore, the concept...
This paper discusses the theory behind ultrawideband (UWB) transmit waveform design, and reports a proof-of-concept UWB radio testbed with waveform level precoding. Unlike a narrow-band channel, a UWB channel contains a large number of resolved multipath components, which opens a door for exploring new features offered by UWB. Waveform level optimization is meaningful, but it is a great challenge...
In this paper, a testbed design and implementation of ultra-wideband (UWB) multiple-input single-output (MISO) time-reversal system are presented. The implementation is based on field programmable gate array (FPGA). The combination of MISO with UWB time-reversal is promising for enhancing the data rate and reliability in harsh wireless environments. When multiple transmitter antennas are considered...
The paper presents the design challenges and implementation issues of a real-time multiple-input single-output (MISO) ultra-wideband (UWB) radio testbed, which involves Xinlix Virtex-5 Field Programmable Gate Array (FPGA) for high speed signal processing. In addition, waveform design and optimization based on the testbed is practical studied. System performance is evaluated using measured channel...
Global Positioning System (GPS) is a space-based global navigation satellite system [1]. It provides time and location information to users anywhere on Earth [1]. Nowadays, GPS is very useful not only for military applications but also for civil applications. GPS receivers are placed in any embedded system to continuously calculate current time and location information. Hence, real-time synchronous...
This paper reports recent progress in ultra-wideband (UWB) radio testbed design and development. Experimental radio testbeds are ideal means to verify theoretically ideas, test feasibility, and reduce the uncertainty between theoretical expectation and practical implementation. The testbed under development has been designed as a general experimental platform to explore the advanced radio technologies,...
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