scholarly journals Secure text message transmission in a 4G compatible MIMO MCCDMA system with combined implementation of Vigenere Cipher and RSA cryptographic algorithm

2012 ◽  
Vol 2 (5) ◽  
pp. 9-18
Author(s):  
Mousumi Haque
Keyword(s):  
Text Message ◽  
Message Transmission ◽  
Cryptographic Algorithm

scholarly journals Alarm System based on GSM Network and FPGA using NIOS II Embedded Processor

2019 ◽  
Vol 8 (6) ◽  
pp. 4144-4148
Keyword(s):  
Communication System ◽  
Text Message ◽  
Alarm System ◽  
Wireless Technology ◽  
Embedded Processor ◽  
Nios Ii ◽  
Message Transmission ◽  
Communication Module ◽  
Potential Applications ◽  
Gsm Network

The present work describes how to carry out a text message transmission in a communication system based on GSM network using a NIOS II processor programmed into an FPGA with the objective of controlling a system alarm remotely. A processor interconnects a bus system with electronics components, such as memories and peripherals, integrating them into a chip to demonstrate the potential applications using both wireless technology and embedded processor through a communication module deployed into an educational board for either commercial or academic uses. The implementation of the communication system proposal was through Intel Platform Designer, Intel Quartus Prime, and NIOS II

scholarly journals Encrypted message transmission in a QO-STBC encoded MISO wireless Communication system under implementation of low complexity ML decoding algorithm

2012 ◽  
Vol 2 (2) ◽  
pp. 53-58
Author(s):  
Shaikh Enayet Ullah ◽  
Md. Golam Rashed ◽  
Most. Farjana Sharmin
Keyword(s):  
Fading Channels ◽  
Gaussian Noise ◽  
Communication System ◽  
Channel Coding ◽  
Signal To Noise Ratio ◽  
Additive White Gaussian Noise ◽  
Text Message ◽  
Low Complexity ◽  
White Gaussian Noise ◽  
Message Transmission

In this paper, we made a comprehensive BER simulation study of a quasi- orthogonal space time block encoded (QO-STBC) multiple-input single output(MISO) system. The communication system under investigation has incorporated four digital modulations (QPSK, QAM, 16PSK and 16QAM) over an Additative White Gaussian Noise (AWGN) and Raleigh fading channels for three transmit and one receive antennas. In its FEC channel coding section, three schemes such as Cyclic, Reed-Solomon and ½-rated convolutionally encoding have been used. Under implementation of merely low complexity ML decoding based channel estimation and RSA cryptographic encoding /decoding algorithms, it is observable from conducted simulation test on encrypted text message transmission that the communication system with QAM digital modulation and ½-rated convolutionally encoding techniques is highly effective to combat inherent interferences under Raleigh fading and additive white Gaussian noise (AWGN) channels. It is also noticeable from the study that the retrieving performance of the communication system degrades with the lowering of the signal to noise ratio (SNR) and increasing in order of modulation.

scholarly journals An efficient cryptographic scheme for text message protection

2018 ◽  
Vol 7 (1.7) ◽  
pp. 152
Author(s):  
Manikandan N K ◽  
Manivannan D ◽  
Antony Kumar K
Keyword(s):  
Text Message ◽  
Secure Messaging ◽  
Unauthorized Access ◽  
Cryptographic Algorithm ◽  
Encryption And Decryption ◽  
Is Security ◽  
Original Message ◽  
Encryption Decryption ◽  
Primary Focus ◽  
Cryptographic Scheme

Interchange of information is increasing very rapidly. Transferring any information on internet arises with the biggest issue that is security. Cryptography plays an important role in achieving security. For any type of business our primary focus is mainly on the security of information for that we require a robust and unbreakable process that provides great safety. This project is concerned with the development of a secure messaging system based on cryptographic algorithm that is which is more faster, better immune to attacks, more complex, easy to encrypt. This is well featured and provides encryption/decryption that can protect message from unauthorized access. we proposed an algorithm, which uses triple keys for encryption and decryption of text to secure the information. This application is well featured and provides security that can protect message from unauthorized access. To send a message, a sender types and encrypts a text message using Three Keys algorithm with a key selected from keylist .The encrypted message is stored in database and receiver’s inbox serial number of key .The receiver, after logging into account ,selects key value and then decrypts with key to see the original message

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