Results 11 to 20 of about 2,932,730 (333)
Fast-Decodable Asymmetric Space-Time Codes from Division Algebras [PDF]
IEEE Transactions on Information Theory, 2010 Multiple-input double-output (MIDO) codes are important in the near-future wireless communications, where the portable end-user device is physically small and will typically contain at most two receive antennas.
Hollanti, Camilla +2 more
core +2 more sources
Optimal space-time codes for the MIMO amplify-and-forward cooperative channel [PDF]
IEEE Transactions on Information Theory, 2006 In this work, we extend the non-orthogonal amplify-and-forward (NAF) cooperative diversity scheme to the MIMO channel. A family of space-time block codes for a half-duplex MIMO NAF fading cooperative channel with N relays is constructed.
Belfiore, Jean-Claude, Yang, Sheng
core +8 more sources
Algebraic Distributed Differential Space-Time Codes with Low Decoding Complexity [PDF]
IEEE Transactions on Wireless Communications, 2007 The differential encoding/decoding setup introduced by Kiran et al, Oggier-Hassibi and Jing-Jafarkhani for wireless relay networks that use codebooks consisting of unitary matrices is extended to allow codebooks consisting of scaled unitary matrices. For
Rajan, B. Sundar, Rajan, G. Susinder
core +2 more sources
Space–Time Codes From Sum-Rank Codes [PDF]
IEEE Transactions on Information Theory, 2021 Just as rank-metric or Gabidulin codes may be used to construct rate–diversity tradeoff optimal space–time codes, a recently introduced generalization for the sum-rank metric—linearized Reed–Solomon codes—accomplishes the same in the case of multiple ...
Mohannad Shehadeh, F. Kschischang
semanticscholar +1 more source
EURASIP Journal on Advances in Signal Processing, 2004 We construct a class of linear quasi-orthogonal space-time block codes that achieve full diversity over quasistatic fading channels for any transmit antennas. These codes achieve a normalized rate of one symbol per channel use. Constellation rotation is
Papadias Constantinos B, Sharma Naresh
doaj +2 more sources
Quotients of orders in cyclic algebras and space-time codes [PDF]
Advances in Mathematics of Communications, 2012 Let $F$ be a number field with ring of integers $\Oc_F$ and $\Dc$ a division $F$-algebra with a maximal cyclic subfield $K$. We study rings occurring as quotients of a natural $\Oc_F$-order $\Lambda$ in $\Dc$ by two-sided ideals. We reduce the problem to
F. Oggier, B. Sethuraman
semanticscholar +1 more source
Performance Evaluation of Spatial Modulation and QOSTBC for MIMO Systems
EAI Endorsed Transactions on Mobile Communications and Applications, 2015 Multiple-input multiple-output (MIMO) systems require simplified architectures that can maximize design parameters without sacrificing system performance. Such architectures may be used in a transmitter or a receiver.
K.O.O. Anoh +5 more
doaj +1 more source
Space-time coding for UMTS. Performance evaluation in combination with convolutional and turbo coding [PDF]
, 2000 Space-time codes provide both diversity and coding gain when using multiple transmit antennas to increase spectral efficiency over wireless communications systems.
Gaspa Maynou, Roger +1 more
core +1 more source
Super-Orthogonal Block Codes with Multichannel Equalisation and OFDM in Frequency Selective Fading
EURASIP Journal on Wireless Communications and Networking, 2010 Super-orthogonal block codes in space-time domain (i.e., Super-orthogonal space-time trellis codes (SOSTTCs)) were initially designed for frequency nonselective (FNS) channels but in frequency selective (FS) channels these super-orthogonal block codes ...
O. Sokoya, B. T. Maharaj
doaj +2 more sources
Space-Time Radar Waveforms: Circulating Codes
Journal of Electrical and Computer Engineering, 2013 This paper describes a concept of the circulating codes covering the whole class of the space-time codes. The circulating codes do not narrow the radiated pattern of the antenna array, thus providing a wide angular coverage, possibly tunable.
G. Babur, P. Aubry, F. Le Chevalier
doaj +1 more source