Encrypted Data Transmission in a Multiuser MIMO OFDMA Wireless Communication System with Implementation of Pre-RSNA Cryptographic Algorithm
نویسندگان
چکیده
This paper incorporates a comprehensive BER simulation study undertaken on the effectiveness of a multi-user MIMO OFDMA wireless communication system on encrypted data transmission. The channel encoded and spatially multiplexed multi-user MIMO OFDMA system under investigation implements Pre-RSNA cryptographic algorithm. The simulated system deploys three linear signal detection schemes (Equalizers) such as Minimum Mean Square Error (MMSE), Zero Forcing (ZF) and Q-Less QR decomposition under BPSK, DPSK, QPSK and QAM digital modulations. It is anticipated from computer simulation tests with synthetic data transmission that the multi antenna supported OFDMA wireless communication system outperforms in Zero Forcing (ZF) channel equalization scheme with BPSK digital modulation and shows comparatively worst performance in Q-Less QR channel equalization scheme.
منابع مشابه
Effects of Channel Estimation on Multiuser Virtual MIMO-OFDMA Relay-Based Networks
A practical multiuser cooperative transmission scheme denoted as Virtual Maximum Ratio Transmission (VMRT) for multipleinput multiple-output-orthogonal frequency division multiple access (MIMO-OFDMA) relay-based networks is proposed and evaluated in the presence of a realistic channel estimation algorithm and using low-density parity-check (LDPC) codes. It is shown that this scheme is robust ag...
متن کاملBER Performance Analysis of a STBC Encoded Secured Multiuser MIMO-OFDM Wireless Communication System
In this paper the BER performances are analyzed of a STBC encoded secured multiuser MIMO-OFDM wireless communication System. The 2X2 multi-antenna supported MIMOOFDM system implements RSA cryptographic algorithm and ZF and MMSE based linear pre channel equalization schemes with deployment of various digital modulations (16-QAM, 16PSK and 16-DPSK) over AWGN and Rayleigh fading channel. In this w...
متن کاملMultiuser Radio Resource Allocation for Multiservice Transmission in OFDMA-Based Cooperative Relay Networks
The problem of multiservice transmission in OFDMA-based cooperative relay networks is studied comprehensively. We propose a framework to adaptively allocate power, subcarriers, and data rate in OFDMA system to maximize spectral efficiency under the constraints of satisfying multiuser multiservices’ QoS requirements. Specifically, first we concentrate on the single-user scenario which considers ...
متن کاملSecure Wireless Text Message Transmission with the Implementation of RSA Cryptographic Algorithm
Security is crucial to a wide range of wireless data applications and services. This paper presents a simulation based study of a wireless communication system with the implementation of secured asymmetric RSA cryptographic encryption/decryption algorithm on text message transmission. The system under investigation incorporates 2/3-rated CRC channel coding and QPSK digital modulation over an ad...
متن کاملPerformance analysis of DAS Group Cell scheme aided Downlink Turbo encoded MIMO OFDMA Wireless Communication System
Distributed antennas systems (DAS) transmission has been recognized as one of the spectrally efficient techniques in future cooperative communication based cellular wireless communication systems. In this paper, we have tried to make a comprehensive study on the impact of implementing DAS Group Cell scheme on performance evaluation of downlink Turbo encoded MIMO OFDMA wireless Communication sys...
متن کامل