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2006•Telecommunication EngineeringRequires access

Performance Estimation for Orthogonal Space-Time Block Codes in OFDM Systems

Yuzhen Li

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Abstract

The space-time block coded(STBC) OFDM scheme over wideband channels is described.A general expression of instant output signal-to-noise for orthogonal space-time block codes is shown in frequency selective fading channel.In addition,the minimum distance sphere upper bounds of this system is analysed accounting to two condition.Results show that this STBC-OFDM system can obtain most diversity gain when the product of the number of transmitter antennas,the number of receiver antennas and the number of selective fading diversity order is small.

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The space-time block coded(STBC) OFDM scheme over wideband channels is described.A general expression of instant output signal-to-noise for orthogonal space-time block codes is shown in frequency selective fading channel.In addition,the minimum distance sphere upper bounds of this system is analysed accounting to two condition.Results show that this STBC-OFDM system can obtain most diversity gain when the product of the number of transmitter antennas,the number of receiver antennas and the number of selective fading diversity order is small.

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Available abstract

The space-time block coded(STBC) OFDM scheme over wideband channels is described.A general expression of instant output signal-to-noise for orthogonal space-time block codes is shown in frequency selective fading channel.In addition,the minimum distance sphere upper bounds of this system is analysed accounting to two condition.Results show that this STBC-OFDM system can obtain most diversity gain when the product of the number of transmitter antennas,the number of receiver antennas and the number of selective fading diversity order is small.

Key concepts: Block code, Space–time block code, Fading, Orthogonal frequency-division multiplexing, Transmitter, Diversity gain, Transmit diversity, Computer science

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