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Suchitra, G.
- Performance Analysis of Reed-Solomon Codes in Digital Communication System using Labview
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Authors
Affiliations
1 Department of Electronics and Communication Engineering, Government College of Technology, Coimbatore, IN
1 Department of Electronics and Communication Engineering, Government College of Technology, Coimbatore, IN
Source
ICTACT Journal on Communication Technology, Vol 11, No 1 (2020), Pagination: 2121-2125Abstract
5G uses various types of access networks and has a high frequency spectrum. At present, there are no mobile handsets that support all spectrum ranges due to limitations of hardware and the expenses involved in the process. This challenge can be addressed with the help of Software Defined Radio (SDR). Universal Software Radio Peripheral (USRP) is a range of software-defined radios and most USRPs connect to a host computer through a high-speed link, which the host-based software uses to control the USRP hardware and transmit/receive data. In general, error occurs during data transmission through different communication channel. These errors can be corrected using Forward Error Correction (FEC) techniques. In this paper, an error correction code named as Reed-Solomon (RS) code, which is suitable for correcting burst error is presented. Further, a Simulation module in LabVIEW for RS Codes using MSK modulation scheme through AWGN channel is presented and its Bit Error Rate (BER) performance for codes such as RS (32,16), RS (127,111) and RS (255,239) are evaluated.Keywords
AWGN, BER, FEC, LabVIEW, Modulation, RS Code, SDR, SNR.References
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- Performance Analysis of a Convolutional Encoder using Digital Modulation Technique
Abstract Views :143 |
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Authors
S. Madumitha
1,
G. Suchitra
1
Affiliations
1 Department of Electronics and Communication Engineering, Government College of Technology, Coimbatore, IN
1 Department of Electronics and Communication Engineering, Government College of Technology, Coimbatore, IN
Source
ICTACT Journal on Communication Technology, Vol 11, No 1 (2020), Pagination: 2153-2158Abstract
The challenges in 5G is to provide a tradeoff between Bit Error Rate (BER) and high data rate. Forward Error Correction is one of the prominent techniques to correct both random and burst errors. A Software-Defined Radio (SDR) is the device used in the area of radio communication system where the key parts of its functionality are performed by means of software. Such a design makes SDR to be used in ubiquitous network environments because of its flexibility and programmability. NI USRP 2954R provides an integrated hardware and software solution, operates at a frequency of 10MHz to 6GHz, and is used for rapidly prototyping high-performance wireless communication systems such as 5G technology. The software simulator of the SDR transceiver is designed using NI LabVIEW which is a graphical programming language developed by National instruments. In this paper, the performance of convolution encoder is simulated in NI LabVIEW and analysed for various modulation schemes such as Binary Phase Shift Keying (BPSK) and Quadrature Amplitude Modulation (QAM). The parameters of the convolution encoder such as constraint length and code rate are varied in BPSK modulation and corresponding variations in BER are analysed. From the result it is concluded that transmission with convolution coding provides better result than uncoded transmission and it is also concluded that BER decreases with increase in constraint length (3, 5, 6, 7) and it is observed that for lower code rate BER is better.Keywords
Software Defined Radio, BER, Binary Phase Shift Keying, Quadrature Amplitude Modulation, Signal-To-Noise Ratio.References
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