An Efficient Implementation Of MIMO OFDM Transceiver on FPGA
Journal Title: International Journal of Scientific Research and Management - Year 2015, Vol 3, Issue 6
Abstract
Orthogonal frequency division multipl exing (OFDM) is a popular method for high data rate wireless transmission. MIMO OFDM has many promising features which allow wireless devices to communicate at a higher data rate with reduced errors and hardware complexity. This paper describes a design an d implementation of a baseband Orthogonal Frequency Division Multiplexing (OFDM) transceiver utilizing Multiple Input Multiple Output (MIMO) signal processing for increased data rate. Orthogonal frequency d ivision multiplexing (OFDM) has become a popular t echnique for transmission of signals over wireless channels. OFDM may be viewed as using many slowly - modulated narrowband signals rather than one rapidly - modulated wideband signal. This work describes how implement an OFDM modem on FPGA using VHDL for a 3 1 subcarrier (channels) OFDM system using 64 points radix - 4 FFT time decimation, a CORDIC implementation to perform the butterfly calculus, and each channel modulation will use a 4 - QAM constellation. The system is divided in a transmission section and a r eception section.
Authors and Affiliations
Pranali Langde
Keywords
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