Diagonal STBC's for fading ISI channels: code design and equalization
Wireless communications systems and networks
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Computers and Electrical Engineering
Computers and Electrical Engineering
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IEEE Transactions on Communications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Blind adaptive equalizer for broadband MIMO time reversal STBC based on PDF fitting
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
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This paper describes and compares several practical equalization schemes for space-time-coded transmissions over broadband wireless channels. For space-time trellis codes (STTCs), we describe and compare two reduced-complexity trellis-based joint equalization and decoding schemes whose performance is further optimized by a front-end finite-impulse response (FIR) channel-shortening prefilter. For space-time block codes, we describe and compare three joint equalization and decoding schemes based on a block-level implementation of the well-known Alamouti scheme either in the time or frequency domains. We consider the third-generation time division multiple access (TDMA) cellular system known as Enhanced Data rates for Global Evolution (EDGE) and recommend a promising equalization scheme for space-time trellis-coded and for Alamouti-type space-time block-coded dual-antenna transmissions based on simulation results for typical urban channel conditions where the delay spread is few symbol periods.