Results 11 to 20 of about 33,986 (255)

Golden space-time block coded modulation [PDF]

open access: yes2008 IEEE Information Theory Workshop, 2008
In this paper we present a block coded modulation scheme for a 2 x 2 MIMO system over slow fading channels, where the inner code is the Golden Code. The scheme is based on a set partitioning of the Golden Code using two-sided ideals whose norm is a power of two.
Laura Luzzi   +3 more
openaire   +2 more sources

On Fast-Decodable Space-Time Block Codes [PDF]

open access: yes2008 IEEE International Zurich Seminar on Communications, 2008
submitted to IEEE trans ...
Ezio Biglieri   +2 more
openaire   +2 more sources

Improved Perfect Space-Time Block Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
The perfect space-time block codes (STBCs) are based on four design criteria - full-rateness, non-vanishing determinant, cubic shaping and uniform average transmitted energy per antenna per time slot. Cubic shaping and transmission at uniform average energy per antenna per time slot are important from the perspective of energy efficiency of STBCs.
K. Pavan Srinath, B. Sundar Rajan
openaire   +3 more sources

Space-time block coding for spatial modulation

open access: yes21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
Space-time block coded spatial modulation (STBC-SM), which employs space-time block coding (STBC) for spatial modulation (SM), is proposed as a new multiple-input multiple-output (MIMO) transmission scheme. In the STBC-SM scheme, the transmitted information symbols are expanded not only to the space and time domains but also to the spatial (antenna ...
Başar, Ertuğrul   +4 more
openaire   +1 more source

Performance Improvement for Vehicular Communications Using Alamouti Scheme with High Mobility

open access: yesJournal of Telecommunications and Information Technology, 2020
The IEEE 802.11p standard is the basic protocol for wireless access in a vehicular environment (WAVE), providing high throughput for multimedia and high quality for vehicular transmissions.
My Abdelkader Youssef, Ahmed Mouhsen
doaj   +1 more source

On permutation of space‐time‐frequency block codings

open access: yesIET Communications, 2014
Multi‐input multi‐output‐orthogonal frequency‐division multiplexing is the foundation of next generation of wireless communication systems and space‐time‐frequency block coding (STFBC) is considered one of the best schemes for implementing these systems. STFBCs have very complex structures and many parameters affect their performance.
Alireza Morsali, Siamak Talebi
openaire   +1 more source

Block turbo codes for space-time systems

open access: yesGlobecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137), 2002
Advances in the field of information theory have shown that wireless systems using multiple transmitters and multiple receivers can significantly improve the spectral efficiency. Systems using transmit and receive diversity associated with coding such as space time trellis codes have since been developed.
Amis Cavalec, Karine, Pyndiah, Ramesh
openaire   +2 more sources

Early Impact of Childhood Opportunity on Neurocognitive Outcomes in Sickle Cell Disease

open access: yesPediatric 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

Perfect space-time block codes and high performance decoding algorithm

open access: yesTongxin xuebao, 2007
Based on the structure of perfect space-time block codes(STBC),an equivalent vertical Bell Laboratories layered space-time(V-BLAST) decoding model was given.Minimum mean-square error decision feedback equalizer(MMSE-DFE) was used to preprocess this model
HU Jun-feng1, YANG Yuan1, ZHANG Hai-lin1
doaj   +2 more sources

Performance assessment of orthogonal space‐time block codes in Nakagami‐m/inverse Gaussian fading MIMO channels

open access: yesIET Communications, 2021
This paper evaluates the performance of multiple‐input multiple‐output systems with orthogonal space‐time block code transmit diversity technique experiencing over G composite fading channels.
Bibhuti Bhusan Pradhan   +2 more
doaj   +1 more source

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