Search results for "maximum likelihood decoding"

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The DMT of Real and Quaternionic Lattice Codes and DMT Classification of Division Algebra Codes

2021

In this paper we consider the diversity-multiplexing gain tradeoff (DMT) of so-called minimum delay asymmetric space-time codes. Such codes are less than full dimensional lattices in their natural ambient space. Apart from the multiple input single output (MISO) channel there exist very few methods to analyze the DMT of such codes. Further, apart from the MISO case, no DMT optimal asymmetric codes are known. We first discuss previous criteria used to analyze the DMT of space-time codes and comment on why these methods fail when applied to asymmetric codes. We then consider two special classes of asymmetric codes where the code-words are restricted to either real or quaternion matrices. We p…

FOS: Computer and information sciencesmaximum likelihood decodingComputer Science - Information TheoryInformation Theory (cs.IT)upper boundspace-time codes020206 networking & telecommunications02 engineering and technologyalgebraLibrary and Information SciencesencodingtiedonsiirtoComputer Science ApplicationslatticeskoodausteoriaMIMO-tekniikka0202 electrical engineering electronic engineering information engineeringMIMO communicationComputer Science::Information TheoryInformation SystemsIEEE Transactions on Information Theory
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