Results 11 to 20 of about 70,274 (154)
Joint Channel Estimation and Turbo Equalization of Single-Carrier Systems over Time-Varying Channels [PDF]
arXiv, 2023 Block transmission systems have been proven successful over frequency-selective channels. For time-varying channel such as in high-speed mobile communication and underwater communication, existing equalizers assume that channels over different data frames are independent.
Yifan Wang +5 more
arxiv +3 more sources
Direct Adaptive Multi-Resampling Turbo Equalizer for Underwater Acoustic Single-Carrier Communication [PDF]
Journal of Marine Science and EngineeringA wideband Doppler Effect is a significant challenge for underwater acoustic communications (UAC). This paper proposes a new two-stage structure of direct adaptive multi-resampling turbo equalizer (DAM-TEQ) for solving the problem of large timescale ...
Zehua Lin +3 more
doaj +2 more sources
Turbo Equalization with Coarse Quantization using the Information Bottleneck Method [PDF]
arXivThis paper proposes a turbo equalizer for intersymbol interference channels (ISI) that uses coarsely quantized messages across all receiver components. Lookup tables (LUTs) carry out compression operations designed with the information bottleneck method aiming to maximize relevant mutual information.
Philipp Mohr +2 more
arxiv +3 more sources
Applied Sciences, 2023 The oceanic positioning, navigation and timing (PNT) network requires high-quality underwater acoustic message transmission. Turbo equalization technology has exhibited superior performance for underwater acoustic (UWA) communications compared with ...
Zhen Han +3 more
doaj +1 more source
Neurogastroenterology &Motility, Volume 34, Issue 12, December 2022., 2022 As observed in this systematic review, MRI is a flexible tool for assessing GE. Different protocols were analyzed, showing an equal capacity to assess the GE. However, many items in these protocols still require further investigation to obtain a common standard and increase this assessment quality. Abstract Background Several magnetic resonance imaging
Davide Bertoli +5 more
wiley +1 more source
Improved proportionate FONLMS algorithm based direct adaptive Turbo equalization for MIMO underwater acoustic communications [PDF]
MATEC Web of Conferences, 2019 In this paper, a novel normalized least mean squares (NLMS) algorithm that jointly updates the efficient of the linear equalizer and soft interference canceller (SIC) in an adaptive turbo equalizer for multiple-input multiple-output (MIMO) underwater ...
Yang Zhuangchun +3 more
doaj +1 more source
Turbo DFE Assisted Time-Frequency Packing for Probabilistically Shaped Terabit Superchannels
IEEE Photonics Journal, 2021 We present a probabilistically shaped (PS) time-frequency-packing (TFP) wavelength-division multiplexing superchannel system employing higher order modulation (HoM) formats, with an objective to improve the spectral efficiency (SE).
Mrinmoy Jana, Lutz Lampe, Jeebak Mitra
doaj +1 more source
Applied Sciences, 2023 In this article we present an iterative system of equalization and decoding to manage the intersymbol interference over an additive white Gaussian noise (AWGN) channel.
Adriana-Maria Cuc +3 more
doaj +1 more source
Weighted Multi-Band Turbo-Coded FSK for Reliable Underwater Communications
Applied Sciences, 2022 Multi-band communication technology allocates the same data to different frequency bands, improving both performance and propagation efficiency. However, since the performance loss in a particular band affects the entire band, the multi-band structure ...
Hyun-Woo Jeong, Ji-Won Jung
doaj +1 more source
IEEE Access, 2018 Multi-input multi-output (MIMO) detection based on turbo principle has been shown to provide a great enhancement in the throughput and reliability of underwater acoustic (UWA) communication systems.
Youwen Zhang +2 more
doaj +1 more source