Results 21 to 30 of about 1,224,797 (335)
Space-Time Frequency Block Codes in LTE-DSRC Hybrid Vehicular Networks
International Journal of Technology, 2022 In vehicular communication systems, Dedicated Short Range Communication (DSRC) is said to provide fast communication and high security between vehicles. Simultaneously, Long-Term Evolution (LTE) is used due to its high bandwidth, low latency, and high
Azlan Abd Aziz +4 more
doaj +1 more source
Algebraic Cayley Differential Space–Time Codes [PDF]
, 2007 Cayley space-time codes have been proposed as a solution for coding over noncoherent differential multiple-input multiple-output (MIMO) channels. Based on the Cayley transform that maps the space of Hermitian matrices to the manifold of unitary matrices,
Hassibi, Babak, Oggier, Frédérique
core +1 more source
Cooperative space-time codes with network coding [PDF]
EURASIP Journal on Wireless Communications and Networking, 2012 Because of the gains like diversity, throughput, and the coverage extension provided by the multiple-input multiple-out (MIMO) systems, it has been part of the various wireless communications standards. However, to reap the benefits offered by MIMO systems in size-constrained nodes, used in wireless communications, has been a challenging issue.
Gordhan Das Menghwar +4 more
openaire +1 more source
Space–Time Codes From Sum-Rank Codes [PDF]
IEEE Transactions on Information Theory, 2022 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 fading blocks.
Mohannad Shehadeh, Frank R. Kschischang
openaire +2 more sources
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
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
Time-Space Constrained Codes for Phase-Change Memories [PDF]
, 2012 Phase-change memory (PCM) is a promising non-volatile solid-state memory technology. A PCM cell stores data by using its amorphous and crystalline states. The cell changes between these two states using high temperature.
Qin, Minghai +2 more
core +4 more sources
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
New space-time block codes from spectral norm.
PLoS ONE, 2019 Current research proposes a natural environment for space-time codes and a new design criterion is obtained for space-time block codes in multi-antenna communication channels.
Carlos A R Martins +2 more
doaj +1 more source