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An extended space-time transmit diversity scheme for frequency selective fading channels

Salim Abdelkareem Alkhawaldeh, Yousef R. Shayan

Open publisher page 5 citations

Abstract

This paper presents a transmit diversity scheme for frequency selective fading channels. The proposed scheme uses a space-time block code (ST-BC) with three transmit antennas combined with orthogonal frequency division multiplexing (OFDM). This scheme provides a diversity order as the maximal-ratio receiver combining (MRRC) scheme. It achieves diversity of 3n for n receive antennas and has code rate of 3/4. A maximum-likelihood detector with linear processing is used which results in low computational complexity. Simulation results are provided to show the comparison between the proposed scheme and MRRC.

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What this paper is about

This paper presents a transmit diversity scheme for frequency selective fading channels. The proposed scheme uses a space-time block code (ST-BC) with three transmit antennas combined with orthogonal frequency division multiplexing (OFDM). This scheme provides a diversity order as the maximal-ratio receiver combining (MRRC) scheme. It achieves diversity of 3n for n receive antennas and has code rate of 3/4. A maximum-likelihood detector with linear processing is used which results in low computational complexity. Simulation results are provided to show the comparison between the proposed scheme and MRRC.

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Available abstract

This paper presents a transmit diversity scheme for frequency selective fading channels. The proposed scheme uses a space-time block code (ST-BC) with three transmit antennas combined with orthogonal frequency division multiplexing (OFDM). This scheme provides a diversity order as the maximal-ratio receiver combining (MRRC) scheme. It achieves diversity of 3n for n receive antennas and has code rate of 3/4. A maximum-likelihood detector with linear processing is used which results in low computational complexity. Simulation results are provided to show the comparison between the proposed scheme and MRRC.

Key concepts: Fading, Diversity scheme, Transmit diversity, Orthogonal frequency-division multiplexing, Computer science, Multiplexing, Block code, Bit error rate

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