A 4g Technology Vlsi Architecture By Shift Based Accumulation In Sc-Fdma Mimo Detectors

This project focuses on high throughput and lower complexity using MIMO SC-FDMA detectors. In LTE SC-FDMA is used in the uplink, which saves power in mobile devices. Beam forming is a technique that transmits the input at different angles. Diversity in the MIMO transmits the input signal and anyone of the output received which is more similar to the transmitted signal. Thus the quality of service is improved by MIMO technique. The mapping order increases and also throughput increases (i.e., 16 QAM and 64 QAM schemes are higher order mapping order). It communicate via free space, additive white gaussian noise is added. Complexity occurs at large constellation sizes. Thus the MMSE equalizer is used to reduce the complexity. BER performance analyzes of MMSE equalizer with different diversity gain of MIMO and also over different modulations. BER performance of higher order mapping MMSE based MIMO SCFDMA over ML method with various diversity levels and also with and without Hard-soft decoding is done. MMSE detectors are close to the maximum likelihood scheme. The MMSE hard & soft decoder reduces the error during transmission. Uplink wireless communication (transmission) is used in future mobile communication systems.