Results 51 to 60 of about 9,710 (215)
Bit Error Rates for Ultrafast APD Based Optical Receivers: Exact and Large Deviation Based Asymptotic Approaches [PDF]
, 2009 Exact analysis as well as asymptotic analysis, based on large-deviation theory (LDT), are developed to compute the bit-error rate (BER) for ultrafast avalanche-photodiode (APD) based optical receivers assuming on-off keying and direct detection.
Das, Abhik K. +2 more
core +1 more source
Single-Carrier Modulation versus OFDM for Millimeter-Wave Wireless MIMO
, 2017 This paper presents results on the achievable spectral efficiency and on the energy efficiency for a wireless multiple-input-multiple-output (MIMO) link operating at millimeter wave frequencies (mmWave) in a typical 5G scenario.
Buzzi, Stefano +4 more
core +1 more source
An Information Theoretic Charachterization of Channel Shortening Receivers [PDF]
, 2013 Optimal data detection of data transmitted over a linear channel can always be implemented through the Viterbi algorithm (VA). However, in many cases of interest the memory of the channel prohibits application of the VA. A popular and conceptually simple
Edfors, Ove, Rusek, Fredrik
core +2 more sources
A Flexible Constrained ICA Approach for Multisubject fMRI Analysis
International Journal of Biomedical Imaging, Volume 2025, Issue 1, 2025.Large‐scale analysis of functional connectivity within intrinsic brain networks using functional magnetic resonance imaging (fMRI) data has been widely used for identifying biomarkers in various psychiatric disorders. While the emerging access to large neuroimaging datasets provides unprecedented opportunities for exploring brain functions, they also ...
Hanlu Yang +5 more
wiley +1 more source
The system of transmission of digital information by using multilevel signals with compact spectrum [PDF]
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008 The digital information transmission method is proposed which makes it possible to decrease intersymbol interference and to increase the action efficiency of symbol interval synchronization system by using specific form signal functions set.
Sukachоv E. A., Shkulipa P. A.
doaj
Performance Enhancement of OFDM‐Based Hybrid Multiplexed Ro‐FSO System Under Complex Rain Conditions
International Journal of Optics, Volume 2025, Issue 1, 2025.The radio over free‐space optical (Ro‐FSO) link serves as an effective and resilient solution for distributing radio frequency (RF) signals over turbulent and adverse weather conditions, using high‐frequency optical carriers. This work proposes an architecture for a high‐speed, spectral‐efficient, and long‐reach hybrid multiplexed Ro‐FSO system that ...
Shivaji Sinha +4 more
wiley +1 more source
Study on canceling intersymbol interference of inverse-GPS
6th International Conference on Signal Processing, 2002., 2003 In inverse-GPS (Global Positioning System), intersymbol interference greatly influences the positioning error. The paper deals with a new interference canceller by means of which the error is reduced. The interference canceller which we propose is composed of a DLL (delay locked loop) and adaptive filter.
Toshiaki SUZUKI, Toshiyuki TANAKA
openaire +2 more sources
Intersymbol interference in DQPSK fibre‐optic systems [PDF]
European Transactions on Telecommunications, 2009 AbstractThe limited bandwidth of high‐speed transmitter and receiver hardware gives rise to intersymbol interference (ISI) in digital communication systems. The influence of such ISI is investigated in a low‐complexity fibre‐optical setting, using differential quaternary phase‐shift keying (DQPSK) modulation.
Hongxia Zhao +2 more
openaire +1 more source
Bounds on the Capacity of ASK Molecular Communication Channels with ISI [PDF]
, 2015 There are now several works on the use of the additive inverse Gaussian noise (AIGN) model for the random transit time in molecular communication~(MC) channels.
Adve, Raviraj +2 more
core +2 more sources
3D Geometry Modeling Method for MIMO Communication Systems Using Correlation Coefficients
Journal of Computer Networks and Communications, Volume 2025, Issue 1, 2025.Channel models are the basis of system design, theoretical analysis, performance evaluation, optimization, and deployment of communication systems in wireless fading environments. LTE, a global standard for high‐speed data transmission, relies on channel modeling techniques due to its multiple‐input multiple‐output (MIMO) architecture. In MIMO systems,
Hassan Abdollahpour +3 more
wiley +1 more source