A Joint Equalization, Carrier Frequency Offsets Compensation and ICI Cancellation for MIMO SC-FDMA Systems

摘要

Third-Generation Partnership Project Long-Term Evolution (3GPP LTE) and Worldw ide Interoperability for Microwave Access (WiMAX) standards adopt MIMO-OFDM symbol detection in these standards requires channel state information (C SI) estimation. multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) techniques. To achieve very high data rates. This project describes different techniques in a Single Carrier Frequency Division Multiple Access (SC -FDMA) system with parameters set according to the standards of 3rd Generation Partnership Project Long Term Evolution (3GPP LTE). The use of Multiple-Input Multiple-Output (MIMO) system promises good improvement in terms of spectral efficiency, link reliability and Signal to Noise Ratio (SNR). Recently the SC-FDMA system has attracted the attention as an efficient technique to the Orthogonal Frequency Division Multiple Access (OFDMA) system in the uplink communication. In this project Regularized Zero-Forcing (RZF) Equa lization to compensates for Intersymbol Interference (ISI) created by multipath within time dispersive channels. In this project similarly simple CFOs disrupt the orthogonality between subcarriers, and give rise to Inter-Carrier Interference (ICI), and Multiple Access Interference (MAI) among users and in particular with MIMO (Multiple-Input Multiple-Output) systems. But simple ZF induces noise, makes unsuitable for interference limited environment. So in this project joint Regularized ZF to nullify the ISI, a CFOs to neglect MAI and ICI cancellation schemes for MIMO SC-FDMA system was developed and analyzed by considering BER performance measure. All si mulations are done using a MATLAB software and co mmunication toolboxes