Results 11 to 20 of about 50,977 (262)
Auto-Encoder Based Orthogonal Time Frequency Space Modulation and Detection With Meta-Learning
IEEE Access, 2023 To tackle a Doppler sensitivity problem of orthogonal frequency division multiplexing (OFDM), orthogonal time frequency space (OTFS) has been investigated, where information is carried over delay-Doppler domain.
Jaehyun Park +3 more
doaj +1 more source
Multi-Carrier Modulation: An Evolution from Time-Frequency Domain to Delay-Doppler Domain
CoRR, 2023 The recently proposed orthogonal delay-Doppler division multiplexing (ODDM) modulation, which is based on the new delay-Doppler (DD) domain orthogonal pulse (DDOP), is studied. A substantial benefit of the DDOP-based ODDM or general delay-Doppler domain multi-carrier (DDMC) modulation is that it achieves orthogonality with respect to the fine time and ...
Hai Lin 0001 +4 more
openaire +2 more sources
Sea Ice Transition Detection Using Incoherent Integration and Deconvolution
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Currently, reflectometry-based sea ice detection methods rely on observables extracted from delay-Doppler maps (DDM)s, which are sensitive to ice in the specular zone.
Benjamin J. Southwell +1 more
doaj +1 more source
Measurement-based analysis of delay-Doppler characteristics in an indoor environment [PDF]
, 2016 An analysis of delay-Doppler characteristics in the presence of moving people is presented for short-range communication in an indoor environment. Channel-sounding measurements have been carried out at 3.6 GHz in a crowded university hall during several ...
Hanssens, Brecht +4 more
core +1 more source
Multipath channel identification by using global optimization in ambiguity function domain [PDF]
, 2011 Cataloged from PDF version of article.A new transform domain array signal processing technique is proposed for identification of multipath communication channels.
Arikan, O., Guldogan, M. B.
core +1 more source
IEEE Access, 2021 In the last few years, orthogonal time frequency space (OTFS) modulation has received significant attention as an alternative to OFDM especially for high mobilty scenarios.
Suvra Sekhar Das +3 more
doaj +1 more source
Geometry-Based Stochastic Modeling and Estimation of Vehicle to Vehicle Channels [PDF]
, 2014 In this paper, a geometry-based stochastic channel model (GSCM) for vehicle-to-vehicle (V2V) wireless communica- tion is developed. The channel model reveals that the channel representation in delay-Doppler domain can be divided into four regions.
Beygi, Sajjad +2 more
core +1 more source
An OFDM based waveform for delay Doppler domain communication
, 2023 <p>This paper presents a new OFDM based modulation scheme for communication in doubly dispersive channels. We call this Delay-Doppler OFDM (DD-OFDM). Our waveform has the same sparse-channel benefits as orthogonal-time-frequency-space (OTFS) modulation, while offering advantages in terms of simpler channel estimation and lower out-of-band (OOB ...
Swaroop Gopalam +5 more
openaire +1 more source
The Estimation Method of Sensing Parameters Based on OTFS
IEEE Access, 2023 In an integrated sensing and communication (ISAC) system, improving the accuracy of delay and Doppler shift sensing parameter estimation is a critical task that sustains the performance of the communication system. To tackle this task, we introduce a two-
Zhiling Tang +3 more
doaj +1 more source
Multiple Access in the Delay-Doppler Domain using OTFS modulation
CoRR, 2019 ITA'2019, San Diego, Feb ...
G. D. Surabhi +2 more
openaire +2 more sources