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Design of orthogonal space-time multi-trellis codes modulation based on Frobenius norm

Liao Gui-sheng

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Abstract

The design of orthogonal space-time codes employing multi-trellis coded modulation(OST-MTCM) is proposed based on Frobenius norm.In the new approach,by supplying an orthogonal transmitted codematrix for each trellis transition and employing Ungerboeck's set partitioning scheme,the maximum transmit diversity gain and optimum coding gain can be achieved.Simulation results confirm the proposed STBC-MTCM designs get about 1.5 dB coding gain over traditional ST-MTCM schemes.Furthermore,the transmitted branch matrix orthogonality is exploited to ease systematic code search procedure.

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The design of orthogonal space-time codes employing multi-trellis coded modulation(OST-MTCM) is proposed based on Frobenius norm.In the new approach,by supplying an orthogonal transmitted codematrix for each trellis transition and employing Ungerboeck's set partitioning scheme,the maximum transmit diversity gain and optimum coding gain can be achieved.Simulation results confirm the proposed STBC-MTCM designs get about 1.5 dB coding gain over traditional ST-MTCM schemes.Furthermore,the transmitted branch matrix orthogonality is exploited to ease systematic code search procedure.

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Available abstract

The design of orthogonal space-time codes employing multi-trellis coded modulation(OST-MTCM) is proposed based on Frobenius norm.In the new approach,by supplying an orthogonal transmitted codematrix for each trellis transition and employing Ungerboeck's set partitioning scheme,the maximum transmit diversity gain and optimum coding gain can be achieved.Simulation results confirm the proposed STBC-MTCM designs get about 1.5 dB coding gain over traditional ST-MTCM schemes.Furthermore,the transmitted branch matrix orthogonality is exploited to ease systematic code search procedure.

Key concepts: Trellis modulation, Space–time block code, Orthogonality, Coding gain, Algorithm, Mathematics, Block code, Space–time trellis code

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