Abstract
In this paper, an investigative study has been made on the performance evaluation of encrypted text message transmission in 5G compatible multiuser frequency-domain subband superposed (FDSS) scheme implemented MIMO OFDM wireless communication system. The 2×2 multiantenna configured simulated system under consideration incorporates modern channel coding (LDPC and Repeat and Accumulate (RA)) and signal detection (Cholesky decomposition based ZF detection, Group Detection (GD) approach aided Efficient Zero-Forcing (ZF) and Lanczos method based efficient signal detection) techniques. In the scenario of transmitting encrypted text message over AWGN and Rayleigh fading channels, it is noticeable that implementation of Repeat and Accumulate channel coding and Group Detection (GD) approach aided Efficient Zero- Forcing (ZF) signal detection techniques is very much robust and effective in retrieving transmitted text messages for all users.
Highlights
17 In their works, the authors demanded significant on the performance evaluation of encrypted text message reduction of out-of-band emission (OOBE) with enhanced spectral efficiency in transmission in 5G compatible multiuser frequency-domain subband superposed (FDSS) scheme implemented MIMO Orthogonal frequency division multiplexing (OFDM) wireless communication system
We have considered Frequencydomain subband superposed scheme aided the OFDM system to study its system performance on encrypted text message transmission
Simulation results using MATLAB R2017a have been presented to illustrate the significant impact of various types of channel coding, signal detection and higher order digital modulation techniques on performance investigation of encrypted text message transmission in 5G compatible frequencydomain subband superposed (FDSS) scheme implemented a MIMO OFDM wireless communication system in terms of bit error rate (BER)
Summary
Global Journal of Computer Science and Technology ( E ) Volume XIX Issue II Version I. 17 In their works, the authors demanded significant on the performance evaluation of encrypted text message reduction of OOBE with enhanced spectral efficiency in transmission in 5G compatible multiuser frequency-domain subband superposed (FDSS) scheme implemented MIMO OFDM wireless communication system. Performance Evaluation of Encrypted Text Message Transmission in 5G Compatible Frequency-domain Subband Superposed Scheme Implemented MIMO OFDM Wireless Communication System code and its generated parity-check matrix Ho contains only a little 1’s with the comparison of 0’s (i.e., sparse matrix). E) Lanczos method based efficient signal detection The signal model is presented in Equation (8), the Minimum mean square error (MMSE) weight matrix. The conceptual block diagram of 5G compatible frequency-domain subband superposed (FDSS) scheme implemented MIMO OFDM wireless communication system has been shown in fig.1 In such a system, it is considered that three users are sending their encrypted text messages. The demodulated complex symbols are demapped, digitally demodulated, channel decoded, decrypted and eventually users own text messages is retrieved
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