Fig 1 - available via license: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Content may be subject to copyright.
Source publication
This paper presents an framework for efficient design and implementation of software defined radio (SDR) on FPGA platform using optimized Quadrature Direct Digital Frequency Synthesizer (QDDFS). An basic SDR System consists of RF Antennas, Analog to Digital converter (ADC), Digital to Analog converter (DAC), Filters and processing units. Reconfigur...
Similar publications
Accurate noise estimation in the HF band is a defining aspect in the evaluation of SNR for communication links. The reference document that specifies how different types of electromagnetic noise can be taken into account by radio communication system planners is the ITU-R Recommendation P.372.Meanwhile a series of studies have demonstrated that Gau...
In this paper, we investigate the disruptive effects of solar scintillation in Deep Space Networks (DSNs) and we apply Network Coded Cooperation (NCC) in DSNs to improve the throughput, the robustness and the security of the communication systems. Simulations illustrate the comparisons between direct links and NCC links for both Rayleigh and Rician...
This study aims to investigate and propose a methodology for determining the azimuth angle of cooperative objects with fast processing, more accuracy, and safety. The proposed methodology encompasses the utilization of a transmitter emitting a continuous wave with a hopping frequency, in conjunction with measuring the Angle of Arrival (AOA) between...
Obfuscation of the orthogonal frequency-division multiplexing (OFDM) physical layer is described in this paper as a means to enhance the security of wireless communication. The standardization of the communication channel between two trusted parties results in a variety of security threats, including vulnerabilities in WPA/WPA2 protocols that allow...
Software defined radio (SDR) is a vast and emerging field that requires the design of various technologies such as antenna, RF, IF, and digital baseband subsystems. Among all these technologies, data converters that convert signals between analog and digital domains are highly crucial. On the other hand field programmable gate arrays (FPGAs) based...
Citations
... Apart from MATLAB-FPGA communication using the developed algorithm, it also contributes partially to FPGA-designing and also provides the facility to compare and verify the accuracy of an algorithm using two different implementations i.e. using VHDL and MATLAB. It is also applicable for loading parameters and on-chip verifications by inputting a variety of signals [5][6][7][8]. FPGA Advantage is an efficient Integrated Design Environment (IDE) supporting VHDL or Verilog design flows and manages the designs through simulation to synthesis. It provides the facility to design at RTL level featuring design entry, verification, synthesis and implementation sub-flows. ...
The presented work demonstrates the most suitable architecture for the FPGA-based signal processing which makes available various real-time filtering algorithms, such as band pass, high pass, low pass, and band-reject for FIR filters. The processor was implemented with the fixed-point arithmetic using VHDL, which can be downloadable on FPGA device. The FPGA device can be interfaced with an analog-to-digital converter (ADC), digital-to-analog converter (DAC) and a personal computer with MATLAB for the user interface and feeding coefficients and order of the filter. The core part of this paper was to find the reconfigurable and efficient architecture of the processor with only one multiplier which can work for Finite Impulse response (FIR) filter with the best- suited structure. The system will be used for automatic generation of fixed‑point FIR filters. The model was also implemented in MATLAB script and the verification of results in the case of low-pass filtering confirmed that both models in MATLAB and VHDL matched to each other. All components of architecture in VHDL were designed using generics which allow changing its structure and behavior by generic values. Therefore, it is a universal filter platform where user can process the data while changing the filter parameters as per the requirement of applications. The complete design was verified by taking the example of audio signal frequency, but parameterized components of system architecture can also facilitate its applicability at ultrasonic frequencies by changing the algorithm. The significance and applicability of FPGAs in ultrasonic signal processing were also studied and reviewed.
Today, VLSI technology has taken a fundamental role in developing most of the high-tech electronic circuits. Even though VLSI design is renowned for its smaller size, lower cost, lower power, high reliability and high functionality, the design process takes long time and produces high risk. So, to obtain the knowledge regarding the different contributions on VLSI design, about 52 papers on the design of VLSI using optimization are reviewed here. Accordingly, VLSI design optimization is analyzed through different bio-inspired algorithms and the performance measures of different VLSI experimentations are compared. Further, various improvements on Self-Adaptive Particle Swarm Optimization (SA-PSO) and VLSI design optimization, without the adoption of bio-inspired algorithms, are examined. Additionally, the floor planning problem of VLSI is considered and reviewed. Eventually, this paper provides the diverse research gaps and challenges in VLSI design, which may be helpful for the authors and the philosophers to contribute for further research.
