Project Report on Digital Signal Transmission over MIMO-OFDM System
sunil p nagare
för 8 år sedan
Creative Commons CC BY 4.0
The increased data rates and reliability required to support emerging multimedia applications require new communications technology. We present results regarding two techniques used in high data rate transmission As orthogonal frequency division multiplexing (OFDM) the and multiple-input multiple-output (MIMO) scheme. The aim of this dissertation is to find efficient methods of providing reliable communication links using MIMO-OFDM under fast fading scenarios. Toward this end, both equalization and channel coding techniques are investigated. Despite many advantages of OFDM, OFDM signals are very susceptible to the time-varying channel, which breaks the orthogonality between sub-carriers, resulting in inter-channel interference (ICI). The ICI increases an irreducible error floor in proportion to the normalized Doppler frequency.
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