Channel estimation for MIMO-OFDM systems using a novel STBC pilot pattern

Abstract

Due to the high bandwidth utilization efficiency, multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) techniques have become a major trend for modern communications. However, MIMO-OFDM techniques need precise synchronization and channel estimation methods to compensate the frequency offset and utilize the multiple antenna diversity. In our previous research, we have proposed a novel space-time block coded (STBC) pilot pattern for frequency and timing synchronizations. In this paper, we use this previous proposed pilot to estimate the channel information for MIMO-OFDM systems. From computer simulations, we show that this unique pilot pattern is also suitable for channel estimation and would be able to achieve a good system performance for MIMO-OFDM systems

BI-Scale Fractional Order Statistics for Blind Channel Estimation in Chaotic STBC Systems

“…In this regard, Zero Forcing (ZF) receivers and Minimum Mean Square Error (MMSE) receivers belong to the family of linear receivers [7,8]. Literature offers two significant universal methods for channel evaluation in MIMO systems, such as the Blind and non-blind methods [9].…”