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OFDM resource allocation in Matlab
no vote
Application background A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems. Key Technology Orthogonal Frequency Division Multiple Access (OFDMA) bases tations allow multiple users to transmit simultaneously on different subcarriers during the same symbol period. This paper considers basestation allocation of subcarriers and power to each user to maximize the sum of user data rates, subject to constraints on total power, bit error rate, and propor-tionality among user data rates. Previous allocation methods have been iterative nonlinear methods suitable for offline optimization. In the special high subchannel SNR case, an iterative root-finding method has linear-time complexity in the number of users and N log N complexity in the number of subcha
preeti1030498
2016-08-23
0
1
Measuring the heat of fruit by image processing te
4.0
Application background In our proposed system, we also aim at using fruit image as image processing tools as they are widely accessible and easy to use. However, compared with existing work, our system has the following contributions. 1)   Our system is currently the only one that not only explains and discusses uncertainties in image-based fruit calorie measurement, but also measures and presents actual uncertainty results using fruit images and its application scenario. This puts our system properly in the context of instrumentation and measurement research, and leads to more meaningful results for fruit recognition systems. 2)   To the best of our knowledge, this is the first study of fruit image seg
preeti1030498
2016-08-23
1
1
A FPGA-based Software GPS Receiver Implementation
no vote
Design / development of GPS receiver based on software, they are able to implement windows and C language on PC environments.Although It can successfully track the GPS signal, calculate the user position in real-time GPS calculation time, capture and track the signal isstill huge all software only GPS receiver. If the need for multipath mitigation, interference cancellation, and weak signal detection in supplementary signal processingis, FPGA / DSP based methods must provide additional computational power, which is a promising solution for advanced (Software Defined Radio (SDR)) SDR GPS receiver 1. In this paper, we propose a high-level design tool of software GPS receiving based on FPGA. We use a baseband signal processing design of GPS receiver based on Simulink and Xilinx system generator. This requires huge computation, such as signal processing components, correlation, C / a codegenerator, DCO (authentication code loop) designed by Xilinx FPGA block and implemented. The performance of the designed receiver is shown in thisreport. Xilinx launched system generation software, which can use MATLAB's Simulink to implement fpgadesign. In using this software, although we design Simulink module, without using FPGA programming knowledge.
preeti1030498
2016-08-23
0
1
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