Results 21 to 30 of about 239,473 (251)
On the Existence of Perfect Space–Time Codes [PDF]
IEEE Transactions on Information Theory, 2009 Perfect space-time codes are codes for the coherent multiple-input multiple-output (MIMO) channel. They have been called so since they satisfy a large number of design criteria that makes their performances outmatch many other codes. In this correspondence, we discuss the existence of such codes (or more precisely, the existence of perfect codes with ...
Berhuy, Grégory +1 more
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High-Rate Redundant Space-Time Coding
Journal of Electrical and Computer Engineering, 2010 We present a new space-time encoder based on packet-level redundancy which can increase the space-time encoder rate beyond unity without compromising diversity gains.
Jawad Manssour +2 more
doaj +1 more source
Perfect Space–Time Block Codes [PDF]
IEEE Transactions on Information Theory, 2006 39 pages, 7 figures, submitted to IEEE Trans. on Inform. Theory Sep.
Frédérique E. Oggier +3 more
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Generalized PSK in Space–Time Coding [PDF]
IEEE Transactions on Communications, 2005 A wireless communication system using multiple antennas promises reliable transmission under Rayleigh flat fading assumptions. Design criteria and practical schemes have been presented for both coherent and non-coherent communication channels. In this paper we generalize one dimensional phase shift keying (PSK) signals and introduce space time ...
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IEEE Access, 2018 This paper characterizes rate-one (i.e., full rate) full-spatial-diversity-achieving communication schemes based on the channel state information (CSI) availability and antenna configurations, i.e., CSI at a transmitter (CSIT) or CSI at a receiver (CSIR) and the numbers of transmit and receive antennas $M$ and $N$ (denoted by $M\times N$
openaire +1 more source
Early Impact of Childhood Opportunity on Neurocognitive Outcomes in Sickle Cell Disease
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Neurocognitive impairment is a well‐recognized complication of sickle cell disease (SCD) that begins early in childhood and persists across development. While cerebrovascular injury contributes substantially to risk, neurocognitive deficits are also observed in children without overt or silent cerebral infarctions, suggesting ...
Julia E. LaMotte +5 more
wiley +1 more source
Topology-Aware Space-Time Network Coding in Cellular Networks
IEEE Access, 2018 Space-time network coding (STNC) is a time-division multiple access (TDMA)-based scheme that combines network coding and space-time coding by allowing relay nodes to combine the information received from different source nodes during the transmission ...
Rodolfo Torrea-Duran +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT The International Paediatric Oncology Society Global Mapping Programme aims to collect data on global paediatric oncology services by continent, with Africa and Latin America completed. This study reports on the methodology and lessons learned for Oceania, a unique continent with resource disparity across countries, multiple small island ...
Trisha Soosay Raj +16 more
wiley +1 more source
Determining Parental Factors for Clinical Trial Attrition in Pediatric Acute Lymphoblastic Leukemia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background/Objectives Despite high enrollment rates on Children's Oncology Group (COG) protocols, attrition after initial consent is challenging, introducing bias and prolonging trial completion. While adult oncology literature has identified predictors of withdrawal, little is known about caregiver decision‐making for child participation in ...
Kimberly L. Stathas +3 more
wiley +1 more source
Cooperative MAC protocol based on network coding and space-time coding
Tongxin xuebao, 2013 Aiming at the problems in wireless ad hoc networks,such as relays’ low efficiency caused by cooperation and difficult to meet the different QoS requirements,a co e MAC protocol was proposed based on the combination of network coding and space-time coding(
Qian-bin CHEN +3 more
doaj +2 more sources