Universal space-time codes from demultiplexed trellis codes
نویسندگان
چکیده
منابع مشابه
Universal space-time trellis codes
This correspondence gives practical examples of space–time trellis codes performing as predicted by Root and Varaiya’s compound channel theorem. Specifically, 32-state and 64-state 2 2 space–time trellis codes are presented that provide a bit-error rate (BER) of10 on all2 2 matrix channels with an excess mutual information (MI) within 8% of the excess MI required by standard trellis codes of th...
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In the absence of accurate channel probability distribution information or in broadcast scenarios, code design for consistent channel-by-channel performance, rather than average performance, may be desirable. Root and Varaiya’s compound channel theorem promises the existence of universal codes that operate with a consistent proximity to channel mutual information on any instance of the compound...
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Transmit diversity schemes for the coherent multiple-antenna flat-fading channel range from spacetime block codes (STBC) to space-time trellis codes (STTC). In this letter we compare the performance of STBC and STTC by means of frame error rate. We discover that a simple concatenation of STBC with traditional AWGN (additive white Gaussian noise) trellis codes outperforms some of the best known ...
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Emerging wireless applications have created a strong motivation to increase the throughput of wireless communication systems. Space-time coding has become a promising method to achieve high data rates. In this work, we propose a space-time trellis code construction method that can provide variable protection against the adverse effects of the radio channel. The method is based on the multiple t...
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We introduce a new family of Space-Time Trellis Codes which extends the powerful characteristics of SuperOrthogonal Space-Time Trellis Codes to four transmit antennas. We consider a family of quasi-orthogonal space-time block codes as building blocks in our new trellis codes. These codes combine set-partitioning and a super set of quasi-orthogonal space-time block codes in a systematic way to p...
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2006
ISSN: 0090-6778
DOI: 10.1109/tcomm.2006.877967