Results 11 to 20 of about 426,723 (277)
Transform modulations for mobile communications [PDF]
, 1997 A new modulation scheme called transform modulations is proposed which improves the system performance in frequency-flat fading mobile channels. They ameliorate the effect of the fadings over the transmitted signal by spreading the information in time ...
Lamarca Orozco, M. Meritxell +1 more
core +1 more source
BER estimation for HiperLAN/2 [PDF]
, 2004 This paper presents a method to estimate the bit error rate (BER) of the wireless channel based on statistical analysis of the soft output of the receiver only. In HiperLAN/2 several modulation schemes can be used.
Hurink, Johann L. +3 more
core +2 more sources
Time Reversal UWB Communication System: A Novel Modulation Scheme with Experimental Validation
EURASIP Journal on Wireless Communications and Networking, 2010 A new modulation scheme is proposed for a time reversal (TR) ultra wide-band (UWB) communication system. The new modulation scheme uses the binary pulse amplitude modulation (BPAM) and adds a new level of modulation to increase the data rate of a TR UWB ...
I. H. Naqvi, A. Khaleghi, G. El Zein
doaj +2 more sources
Performance Evaluation of the New Compound-Carrier-Modulated Signal for Future Navigation Signals
Sensors, 2016 Navigation Signal based on Compound Carrier (NSCC), is proposed as the potential future global navigation satellite system (GNSS) signal modulation scheme.
Ruidan Luo, Ying Xu, Hong Yuan
doaj +1 more source
Model-Driven Deep Learning Scheme for Adaptive Transmission in MIMO-SCFDE System
IEEE Access, 2020 Adaptive transmission (AT) is considered as one of the critical technologies to enhance the effectiveness of communication systems. In this article, we propose a model-driven deep learning (DL) scheme for AT in multiple-input multiple-output single ...
Jun Li +4 more
doaj +1 more source
A Scheme of CAP-DPIM Hybrid Mudulation for VLC
Guangtongxin yanjiu, 2021 In order to improve the performance of indoor Visible Light Communication (VLC) system, a hybrid modulation scheme combining Carrierless Amplitude Phase (CAP) modulation and Digital Pulse Interval Modulation (DPIM) is proposed.
Jia-jun XIN, Xu-dong WANG, Nan WU
doaj +1 more source
Energy Efficient Transmission over Space Shift Keying Modulated MIMO Channels [PDF]
, 2012 Energy-efficient communication using a class of spatial modulation (SM) that encodes the source information entirely in the antenna indices is considered in this paper. The energy-efficient modulation design is formulated as a convex optimization problem,
Chang, Ronald Y. +2 more
core +1 more source
Hybrid Chirp Signal Design for Improved Long-Range (LoRa) Communications
Signals, 2022 Long-range (LoRa) communication has attracted much attention recently due to its utility for many Internet of Things applications. However, one of the key problems of LoRa technology is that it is vulnerable to noise/interference due to the use of only ...
Md. Noor-A-Rahim +5 more
doaj +1 more source
Sensors, 2012 Intra-Body Communication (IBC), which modulates ionic currents over the human body as the communication medium, offers a low power and reliable signal transmission method for information exchange across the body.
Min Du +6 more
doaj +1 more source
Characterization of Quasi-Coherent Modules that are Module Schemes [PDF]
Communications in Algebra, 2009 2 pages; typo added in Corollary 1 ...
Sánchez, Amelia Álvarez +2 more
openaire +2 more sources