We present a Software Defined Radio (SDR) based IEEE 802.15.4 transceiver testbed for GNU Radio. Our testbed is Open Source and fully interoperable with off-the-shelf TelosB sensor motes and the Contiki sensor mote operating system, from the physical layer to the network stack. The testbed can be setup and configured easily via a graphical user interface and applications can interface with the ...

This paper proposes a competent and effective scheme to enhance the ride-through capability of DFIGbased wind turbines under unbalanced voltage dip conditions. The proposed method is realized through joint use of the rotor-side converter control and a three-phase stator damping resistor (SDR) placed in series with the stator windings. By means of an asymmetrical SDR idea, during the unbalanced ...

In this paper, a low voltage ultra-wideband RF receiver for Software-Defined Radio (SDR) is presented. In SDR design, the radio frequency (RF) receiver should be able to receive signals over a broadbandwidth so that it can satisfy a variety of different communication standards. In the proposed design, working frequency ranging from 0.1GHz to 6GHz RF front-end for SDR, covering almost all of mat...

This paper describes a framework for the design space exploration of resource-efficient software-defined radio architectures. This design space exploration is based on a dual design flow, using a central processor specification as reference for the hardware development and the automatic generation of a C-compiler based tool chain. Using our modular rapid prototyping environment RAPTOR and the R...

Software Defined Radio (SDR) has proven to be a practical and effective tool in RF communications, allowing flexible and rapid exploration of dynamic RF signal processing techniques while accelerating advancement of configurable RF antennas and front-end hardware. SDR concepts can be adapted to other physical media; we investigate a Software Defined Visible Light Communications (SDVLC) solution...

The Software Defined Radio (SDR) platform continues to shape the Global Navigation Satellite System (GNSS) testing and development environment. Open source SDR platforms are now being developed and offer GNSS development capability to a variety of users that have not previously had sufficient resources to be engaged. An open source platform also offers many advantages in terms of customization ...

Commercial and research work in the field of software defined radio (SDR) has produced designs which have been able to deliver the efficiency and computational power needed to process 3G wireless technologies. Though efficient 3G processing has been achieved by these designs, next generation 4G SDR technology requires 10–1000x more computational performance but limits the power budget increase ...

The paper considers various aspects and approaches regarding the search for a system of differenrt representatives (SDR) subsets finite set. Algorithm 3 has been developed, which is an algorithmization process SDR on basis Hall's theorem existence SDR. Algorithms 1-5 searching partial complete SDRs based technology solving problems transport type, in particular, algorithm associated with constr...

TErrestrial Trunked Radio (TETRA) offers capabilities equivalent to the second generation of mobile phones with voice and limited data capabilities. TETRA needs to evolve to satisfy increasing user demand for new services and facilities as well as gleaning the benefits of new technology. An initial enhancement (TETRA Enhanced Data Service, TEDS) has been agreed. The enhanced TETRA services allo...

This paper presents the subject Digital Techniques for Communications (DTC). DTC is taught at the Escola Politècnica Superior de Castelldefels (EPSC), which belongs to the Polytechnic University of Catalonia (UPC). It is a compulsory subject for undergraduate electrical engineering students specialized in telecommunication systems. It covers sampling theory, efficient IQ modulation and demodula...