Results 21 to 30 of about 57,027 (186)

Iterative turbo beamforming for OFDM based hybrid terrestrial-satellite mobile system [PDF]

open access: yes, 2012
In the context of orthogonal frequency division multiplexing (OFDM)-based systems, pilot-based beamforming (BF) exhibits a high degree of sensitivity to the pilot sub-carriers.
Evans, B.G., Imran, M.A., Khan, A.H.
core   +1 more source

Efficient Energy Recovery Scenarios from Pressure-Reducing Stations Intended for New Al-Alamein City in Egypt

open access: yesEnergies, 2022
Worldwide concerns over energy optimization and harnessing have sparked a variety of research on utilizing wasted energy. Natural gas, in particular, has been an essential energy commodity for domestic and industrial applications.
O. Saied   +3 more
doaj   +1 more source

Fast, Efficient, and Viable Compressed Sensing, Low-Rank, and Robust Principle Component Analysis Algorithms for Radar Signal Processing

open access: yesRemote Sensing, 2023
Modern radar signal processing techniques make strong use of compressed sensing, affine rank minimization, and robust principle component analysis. The corresponding reconstruction algorithms should fulfill the following desired properties: complex ...
Reinhard Panhuber
doaj   +1 more source

Analysis of the Convergence Process by EXIT Charts for Parallel Implementations of Turbo Decoders [PDF]

open access: yes, 2013
International audienceIterative process is a general principle in decoding powerful FEC codes such as turbo codes. However, the mutual information exchange during the iterative process is not easy to analyze and to describe.
Jego, Christophe   +2 more
core   +3 more sources

Iterative channel estimation and decoding algorithm for quasi-coherent demodulation of Turbo coded GMSK signals

open access: yesTongxin xuebao, 2006
A new simple iterative channel estimation algorithm for quasi-coherent demodulation Turbo coded GMSK signals was presented. Based on the iterative decoding principle of Turbo code, the algorithm improved the channel esti- mation accuracy using output of ...
WU Tuan-feng, YANG Xi-gen
doaj   +2 more sources

Iterative decoding for MIMO channels via modified sphere decoding [PDF]

open access: yes, 2004
In recent years, soft iterative decoding techniques have been shown to greatly improve the bit error rate performance of various communication systems. For multiantenna systems employing space-time codes, however, it is not clear what is the best way to ...
Hassibi, B., Kailath, T., Vikalo, H.
core   +2 more sources

Source-Difference-Based Mapping Improves Spatial Modulation

open access: yesIEEE Open Journal of Vehicular Technology, 2023
A new multi-antenna transmission scheme, referred to as difference-based spatial modulation (DBSM), is proposed to enhance the reliability of spatial modulation (SM).
Yuli Yang, Chao Xu, Lajos Hanzo
doaj   +1 more source

Deriving the Normalized Min-Sum Algorithm from Cooperative Optimization

open access: yes, 2006
The normalized min-sum algorithm can achieve near-optimal performance at decoding LDPC codes. However, it is a critical question to understand the mathematical principle underlying the algorithm.
Huang, Xiaofei
core   +2 more sources

Nested turbo codes for the costa problem [PDF]

open access: yes, 2008
Driven by applications in data-hiding, MIMO broadcast channel coding, precoding for interference cancellation, and transmitter cooperation in wireless networks, Costa coding has lately become a very active research area.
Cheng, Samuel   +5 more
core   +1 more source

Analysis of iteration control for turbo decoders in turbo synchronization applications [PDF]

open access: yesAdvances in Radio Science, 2009
Wireless data transmission results in frequency and phase offsets of the signal in the receiver. In addition, the received symbols are corrupted by noise.
T. Lehnigk-Emden   +3 more
doaj  

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