Results 11 to 20 of about 33,904 (256)

Performance Evaluation of Spatial Modulation and QOSTBC for MIMO Systems

open access: yesEAI 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 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

Pragmatic Space-Time Codes for Cooperative Relaying in Block Fading Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
We address the problem of construction of space-time codes for cooperative communications in block fading channels. More precisely, we consider a pragmatic approach based on the concatenation of convolutional codes and BPSK/QPSK modulation to obtain ...
Marco Chiani, Velio Tralli, Andrea Conti
doaj   +1 more source

Quantum Codes in Classical Communication: A Space-Time Block Code From Quantum Error Correction

open access: yesIEEE Open Journal of the Communications Society, 2021
We propose a general framework for noncoherent communication using techniques from the field of quantum error correction (QEC). We first propose an approach for analyzing a classical communication channel as a quantum channel, and develop an extension of
Travis C. Cuvelier   +3 more
doaj   +1 more source

Robust rateless space time block coding for mmWave massive MIMO system

open access: yesHeliyon
In the vast growing wireless communication system creating robust encoding mechanisms using space-time block codes (STBC) for mmWave massive MIMO to overcome uncertainty and ensure reliability is a critical concept to be covered. This article reviews the
Zelalem A. Kelem, Habib M. Hussein
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

Performance Analysis of Space-Time Block Codes in Flat Fading MIMO Channels with Offsets

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
We consider the effect of imperfect carrier offset compensation on the performance of space-time block codes. The symbol error rate (SER) for orthogonal space-time block code (OSTBC) is derived here by taking into account the carrier offset and the ...
Manav R. Bhatnagar   +2 more
doaj   +2 more sources

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

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

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

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