On Fast-Decodable Space–Time Block Codes
نویسندگان
چکیده
منابع مشابه
On Fast-Decodable Algebraic Space-Time Codes
In the near future, the 5th generation (5G) wireless systems will be established. They will consist of an integration of different techniques, including distributed antenna systems and massive multiple-input multiple-output systems, and the overall performance will highly depend on the channel coding techniques employed. Due to the nature of future wireless networks, space– time codes are no lo...
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Two new rate-one full-diversity space-time block codes (STBC) are proposed. They are characterized by the lowest decoding complexity among the known rate-one STBC, arising due to the complete separability of the transmitted symbols into four groups for maximum likelihood detection. The first and the second codes are delay-optimal if the number of transmit antennas is a power of 2 and even, resp...
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Consider a d k RLL constraint that is contained in a d k RLL con straint where k d and d and x a codeword length q k It is shown that whenever there exist block decodable encoders with codeword length q for those two constraints there exist such encoders where one is a subgraph of the other furthermore both encoders can be decoded by essentially the same de coder Speci cally a d k RLL constrain...
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We present families of unital algebras obtained through a doubling process from a cyclic central simple algebra D = (K/F, σ, c), employing a K-automorphism τ and an element d ∈ D×. These algebras appear in the construction of iterated spacetime block codes. We give conditions when these iterated algebras are division which can be used to construct fully diverse iterated codes. We also briefly l...
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Let K/F and K/L be two cyclic Galois field extensions and D = (K/F, σ, c) a cyclic algebra. Given an invertible element d ∈ D, we present three families of unital nonassociative algebras over L ∩ F defined on the direct sum of n copies of D. Two of these families appear either explicitly or implicitly in the designs of fast-decodable space-time block codes in papers by Srinath, Rajan, Markin, O...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2009
ISSN: 0018-9448
DOI: 10.1109/tit.2008.2009817