Results 21 to 30 of about 70,274 (154)
Optimizing of Iterative Turbo Equalizer for Underwater Sensor Communication
We presented an iterative turbo equalization to cope with intersymbol interference induced by reflection of sea level and sea bottom for underwater sensor communication channel. Iterative turbo equalizer consists of inner codes and outer codes; we employ
Ji Won Jung, Ki Man Kim
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Time-Frequency Domain Turbo Equalization for Single-Carrier Underwater Acoustic Communications
Single-carrier frequency-domain equalization (SC-FDE) is a promising technique for coherent high-rate underwater acoustic (UWA) communications. In this paper, a time-frequency domain turbo equalization (TFD-TE) scheme is proposed for single-carrier ...
Chengbing He+6 more
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Turbo Packet Combining Strategies for the MIMO-ISI ARQ Channel [PDF]
This paper addresses the issue of efficient turbo packet combining techniques for coded transmission with a Chase-type automatic repeat request (ARQ) protocol operating over a multiple-input--multiple-output (MIMO) channel with intersymbol interference (ISI).
arxiv +1 more source
Adaptive Turbo Equalization of Probabilistically Shaped Constellations [PDF]
Fiber nonlinearity compensation of probabilistically shaped constellations with adaptive turbo equalization is investigated for the first time. Potential for more than 100% transmission reach extension is demonstrated by combining probabilistic shaping, single-channel digital backpropagation, and adaptive turbo equalization.
arxiv
Performance Analysis and Improvement for VAMP Soft Frequency-Domain Equalizers
The vector approximate message passing (VAMP) soft frequency-domain equalizer (SFDE) has been proposed for turbo equalization. It consists of an inner soft equalizer (ISE) and an inner soft slicer (ISS), which iteratively exchange block-wise extrinsic ...
Dong Li, Yanbo Wu, Jun Tao, Min Zhu
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Low-Complexity Iterative Receiver for Space-Time Coded Signals over Frequency Selective Channels
We propose a low-complexity turbo-detector scheme for frequency selective multiple-input multiple-output channels. The detection part of the receiver is based on a List-type MAP equalizer which is a state-reduction algorithm of the MAP algorithm using ...
Mohamed Siala+2 more
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Generally, an intertrack interference (ITI) is a critical problem in bit-patterned magnetic recording (BPMR) systems that can attain an areal density (AD) up to 4 Tb/in2.
Santi Koonkarnkhai+2 more
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Underwater Acoustic Channels (UAC) have inherent sparse characteristics. The traditional adaptive equalization techniques do not utilize this feature to improve the performance.
Zhenzhong Wang+3 more
doaj
Joint Multiple Turbo Equalization for Harsh Time-Varying Underwater Acoustic Channels
To address the problem of the harsh time-varying multi-path interference (TMI) incurred by moving underwater acoustic communications, a joint multiple turbo equalization (JMTE) algorithm is proposed.
Guang Yang+4 more
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Iterative Estimation in Turbo Equalization Process [PDF]
This paper presents the iterative estimation in turbo equalization process. Turbo equalization is the process of reception in which equalization and decoding are done together, not as separate processes.
MORGOS Lucian+2 more
doaj