WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 17, 2018
Performance Enhancement of MIMO-OFDM using Redundant Residue Number System
Authors: , ,
Abstract: Telecommunication industry requires high capacity networks with high data rates which are achieved through the usage of Multiple-Input-Multiple-Output (MIMO) communication with Orthogonal Frequency Division Multiplexing (OFDM) system over wireless communications without requiring highly complex transmit/receive systems. Still, the communication channel suffers from noise, interference or distortion due to hardware design limitations, and channel environment. To combat these challenges, achieve enhanced system performance and improve the spectrum efficiency of the communication system various error control techniques are utilized to enable the receive side to detect any possible errors in the received signal and at the same time correct it and thus; for a certain transmitted signal power the system would have lower Bit Error Rate (BER). The proposed research focuses on Redundant Residue Number System (RRNS) coding as a Forward Error Correction (FEC) scheme that improves the performance of MIMO-OFDM based wireless communications in comparison with current utilized methods as Low-Density Parity Check (LDPC) coders at transmitter side or equalizers at receiver side. The system Bit Error Rate (BER) performance is measured over different simulated channel conditions using MATLAB tool, including the effect of Additive White Gaussian Noise (AWGN), signal amplitude reduction and multipath delay spreading. Simulation results had shown that RRNS coding scheme provides an enhancement in system performance over conventional error detection and correction coding schemes by utilizing the distinct features of Residue Number System (RNS).
Search Articles
Keywords: Conventional Codes, Equalizers, Error Detection and Correction, Redundant Residue Number System, Wireless Communication
Pages: 153-160
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 17, 2018, Art. #18