Results 71 to 80 of about 9,710 (215)
Spectrum‐sensing algorithm based on graph feature fusion
IET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2709-2725, December 2024.In this study, a spectrum‐sensing algorithm based on graph feature fusion is investigated, which used the block‐order statistic of the power spectrum and the self‐loop weights based‐graph quadratic form to improve the detection probability. Simulation results confirm the robust spectrum‐sensing performance under lower SNRs, while maintaining low ...
Shanshan Wu, Guobing Hu, Bin Gu
wiley +1 more source
Application of time reversal technique in shallow water environment
Archives of Acoustics, 2014 Underwater acoustic communications in shallow water environment is a challenging problem due to the intersymbol interference caused by time-varying dispersive multipath channel.
Sławomir Jastrzębski
doaj
Trellis-Based Equalization for Sparse ISI Channels Revisited
, 2005 Sparse intersymbol-interference (ISI) channels are encountered in a variety of high-data-rate communication systems. Such channels have a large channel memory length, but only a small number of significant channel coefficients.
Badri-Hoeher, Sabah +3 more
core +1 more source
IET Communications, Volume 18, Issue 17, Page 1071-1078, October 2024.The study integrates dimmable constant weight polar‐coded non‐orthogonal multiple access (CWPC‐NOMA) with orthogonal space‐time block coding (OSTBC) for visible light communication (VLC). The proposed scheme enhances spectral efficiency and reliability while optimizing resource utilization and leveraging transmit diversity.
Oluwaseyi Paul Babalola, Vipin Balyan
wiley +1 more source
Study of filtering algorithms receive digital messages using MIMO technology in channels with memory
Физика волновых процессов и радиотехнические системы, 2015 The article investigates the three different algorithms to combat intersymbol interference in a MIMO-communication systems with a 2x2 configuration (zero forcing algorithm, minimizing mean square error algorithm and the algorithm technique as a whole ...
V.G. Kartashevskii, O.S. Konyaeva
doaj
Intersymbol interference in misequalised coaxial systems
Electronics Letters, 1980 A study of digital system degradation in under- and over-equalised coaxial channels is presented. Particular emphasis is paid to the analysis of the dependence of intersymbol interference on the extent of misequalisation and the chosen line code. Line codes of practical importance are considered.
D. Muñoz Rodríguez, K.W. Cattermole
openaire +1 more source
International Journal of Antennas and Propagation, 2012 Single carrier block transmission (SCBT) system has become one of the most popular modulation systems due to its low peak-to-average power ratio (PAPR), and it is gradually considered to be used for uplink wireless communication systems. In this paper, a
Juinn-Horng Deng, Sheng-Yang Huang
doaj +1 more source
Journal of Engineering and Sustainable Development, 2008 Code Division Multiple Access (CDMA) suffers from multi-user interference (MUI), and intersymbol interference (ISI) under frequency selective multi-path fading channels. Orthogonal Frequency Division Multiple access (OFDM) is MUI free but achieves lower
Maha George Zia, Harith Akram Nassir
doaj
Optimization of an optically implemented on-board FDMA demultiplexer [PDF]
Performance of a 30 GHz frequency division multiple access (FDMA) uplink to a processing satellite is modelled for the case where the onboard demultiplexer is implemented optically.
Fargnoli, J., Riddle, L.
core +1 more source
A Low-Complexity Graph-Based LMMSE Receiver Designed for Colored Noise Induced by FTN-Signaling
, 2014 We propose a low complexity graph-based linear minimum mean square error (LMMSE) equalizer which considers both the intersymbol interference (ISI) and the effect of non-white noise inherent in Faster-than-Nyquist (FTN) signaling.
Aktas, Tugcan +2 more
core +1 more source