scholarly journals Design and Performance Evaluation of Error Detection and Correction using Concatenated BCH and LDPC coding Scheme for Data Streams in Satellite Communication

2015 ◽  
Vol V4 (08) ◽  
Author(s):  
Mr. Girish Kumar N G ◽  
Dr. M N Sree Ranga Raju ◽  
Keyword(s):  
Performance Evaluation ◽  
Error Detection ◽  
Data Streams ◽  
Satellite Communication ◽  
Coding Scheme ◽  
Error Detection And Correction ◽  
And Performance

scholarly journals Fuzzy Based Adaptive Controller for on - Chip Communication

2018 ◽  
Vol 7 (3.27) ◽  
pp. 362
Author(s):  
M Jasmin ◽  
T Vigneswaran
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Error Detection ◽  
Input Data ◽  
Fuzzy Controller ◽  
Proper Time ◽  
System On Chip ◽  
Coding Scheme ◽  
Error Detection And Correction ◽  
On Chip

Occurrence of bit error is more when communication takes place in System on chip environment. By employing proper error detection and correction codes the bit error rate can be considerably reduced in On-chip communication. As System on chip involves heterogeneous system the efficiency of communication is improved when reconfigurable multiple coding schemes are preferred. Depending upon the requirements for various subsystem the correct code has to be selected. Due to the variations in input demands based on various subsystems the proper selection of codes become fuzzy in nature. In this paper Fuzzy Controller is designed to select the correct coding scheme. Inputs are given to the fuzzy controller based on the application demand of the user. The input parameters are minimum bit error rate, computational complexity and correlation level of the input data. Fuzzy Controller employs three membership functions and 27 rules to select the appropriate coding scheme. The selected coding scheme should be communicated at the proper time to the decoder. To enable the decoding process selected coding scheme is communicated effectively by using less overhead frame format. To verify the functionality of fuzzy controller random input data sets are used for testing.  

Desain dan Simulasi Encoder-Decoder Berbasis Angka Sembilan Untuk Transmisi Informasi Digital

2015 ◽  
Vol 6 (3) ◽  
Author(s):  
Bobby Yuhanda ◽  
Nasaruddin Nasaruddin ◽  
Syahrial Syahrial
Keyword(s):  
Computer Simulation ◽  
Bit Error Rate ◽  
Error Rate ◽  
Error Detection ◽  
Communication Channel ◽  
Multipath Fading ◽  
Digital Information ◽  
Coding Scheme ◽  
Error Detection And Correction ◽  
Information And Communication

Abstract. The development of information and communication technology is growing rapidly, particularly in the transmission of digital information. The process of transmitting digital information through the communication channel will be interferenced by noise, distortion and multipath fading so that the information is likely to experience an error or incorrect detection at the receiver, which can decrease the system performance. This research proposes the design and simulation of encoder-decoder based on the number nine to transmit digital information reliably and precisely. The goal of this research is to design and simulate the encoder decoder as a scheme of error detection and correction and to reduce bit error rate that occurs during the process of transmitting digital information. The research method uses design and computer simulation where the encoder-decoder is modeled mathematically, design is structured and a computer simulation is developed for the performance of encoder-decoder based on the number nine in the transmission of digital information. The result of this research shows that the proposed encoder-decoder can detect the errors transmission and correct the errors at receiver.Keywords: Digital information, encoder-decoder, coding scheme, and transmission information. Abstrak. Perkembangan teknologi komunikasi dan informasi saat ini sangat pesat, khususnya dalam teknologi transmisi informasi digital. Proses transmisi informasi digital melalui kanal komunikasi akan mendapat gangguan seperti noise, distorsi, interferensi dan multipath fading. Sehingga informasi yang dikirim kemungkinan akan terjadi kesalahan atau salah deteksi pada penerima, yang menyebabkan penurunan kinerja dari sistem. Penelitian ini mengusulkan suatu desain dan simulasi encoder-decoder berbasis angka sembilan untuk transmisi informasi digital, yang mampu bekerja secara handal dan tepat. Adapun tujuan penelitian ini adalah untuk merancang dan mensimulasikan encoder-decoder berbasis angka Sembilan sebagai skema deteksi dan koreksi kesalahan serta mengurangi bit error rate yang terjadi pada saat proses transmisi informasi digital. Metode penelitian yang digunakan adalah perancangan dan simulasi komputer, dimana prosesnya adalah pemodelan secara matematis, perancangan encoder-decoder, pembuatan simulasi kinerja encoder-decoder berbasis angka sembilan untuk transmisi informasi digital. Hasil penelitian ini menunjukan bahwa encoder-decoder yang diusulkan dapat mendeteksi kesalahan transmisi dan mengoreksi kesalahan pada penerima.Kata Kunci: Informasi digital, encoder-decoder, pengkodean kanal, transmisi informasi.

scholarly journals Design and Performance Evaluation of Two-Unit YAGI-UDA Array for UHF Satellite Communication

2014 ◽  
Vol 6 (5) ◽  
pp. 145-152
Author(s):  
Rupesh Lad ◽  
Pritesh Chhajed ◽  
Lokeshsingh Bai ◽  
Shyam Dahiwal ◽  
Sukhada Saoji ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Satellite Communication ◽  
And Performance

scholarly journals Design of a Cryptographic System for Communication Security using Chaotic Signals

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Jai-Houng Leu ◽  
Jung-Kang Sun ◽  
Ho-Sheng Chen ◽  
Chong-Lin Huang ◽  
Dong-Kai Qiao ◽  
...  
Keyword(s):  
Error Detection ◽  
Satellite Communication ◽  
High Efficiency ◽  
Electric Circuit ◽  
Chaotic Encryption ◽  
Chaotic Signals ◽  
Transmission Of Information ◽  
Cryptographic System ◽  
Chaotic Circuits ◽  
And Performance

Disturbance or corresponding errors of the transmission of information affect the ability of error detection. The chaotic encryption system prevents errors and secures the transmission system safely. The security assures by updating chaotic signals with the parameters of the chaotic circuits which are frequently changed. The data decipher and the encryption by the chaotic signaling system renews and changes the initial condition of a chaotic electric circuit. When most of the decimal portions are less than the threshold, the transmission is accepted, and all the noninteger numbers are rounded to their nearest integers. The criterion allows the error-detection function in the security system that is proposed in this paper. The chaotic encryption system for information is applied to public channels by the authorized individual. Three pictorial examples transmitted in the proposed system successfully demonstrate the security and performance. The new system provides high efficiency in the satellite communication network.

Implementation and Performance Analysis of Two Error Detection and Correction Techniques

2018 ◽  
Vol 10 (1) ◽  
pp. 36-48 ◽  
Author(s):  
Swati Chaturvedi ◽  
Sukrut Pasumarthi ◽  
Nan Wang
Keyword(s):  
Error Detection ◽  
Linear Codes ◽  
Hamming Code ◽  
Binary Linear Codes ◽  
Computer Communication ◽  
Signal Error ◽  
Error Detection And Correction ◽  
Significant Difference ◽  
And Performance ◽  
To Receive

In computer communication and telecommunication applications, error detection and correction techniques must be employed to ensure a reliable data transmission from the source to the destination. Two of the most prevailing techniques, Cyclic Redundancy Check (CRC) detection and Hamming code correction, are implemented and analyzed. The CRC method picks up prominence because it joins three focal points: extraordinary blunder identification capacities, minimal overhead, and simplicity of usage. Moreover, both the CRC and Hamming code are binary linear codes. However, one significant difference is that Hamming code only works on data of some fixed size (depending on the Hamming code used), whereas CRC is a convolution code that works on data of any size. In this paper, the authors will show how CRC helps in removing errors by passing three distorted signals and using CRC to receive the signal error free in the MATLAB environment.

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