Results 71 to 80 of about 126 (110)
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Bell System Technical Journal, 1975
From the author's abstract: ``The degradation suffered when pulses satisfying the Nyquist criterion are used to transmit binary data in noise at supraconventional rates is studied. Optimum processing of the received waveforms is assumed, and attention is focused on the minimum distance between signal points as a performance criterion. An upper bound on
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From the author's abstract: ``The degradation suffered when pulses satisfying the Nyquist criterion are used to transmit binary data in noise at supraconventional rates is studied. Optimum processing of the received waveforms is assumed, and attention is focused on the minimum distance between signal points as a performance criterion. An upper bound on
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Discrete Time Faster-Than-Nyquist Signalling
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010Increasing the symbol rate up to 25\% faster than the Nyquist criteria for a digital communications system with QPSK modulation with an AWGN channel does not significantly increase the bit error rate or required transmission bandwidth. This so-called Faster-than-Nyquist (FTN) signalling has not been used in commercially deployed communications systems ...
Michael McGuire, Mihai Sima
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Capacity of Multicarrier Faster-than-Nyquist Signaling
2020 IEEE International Symposium on Information Theory (ISIT), 2020The channel capacity of multicarrier faster-than- Nyquist signaling is investigated. We develop a suitable discrete- time channel model and derive an explicit and interpretable channel capacity formula for the multicarrier faster-than-Nyquist signaling under frequency-selective channels.
Yong Jin Daniel Kim, Yi Feng
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Faster-than-Nyquist Single-Carrier MIMO Signaling
2016 IEEE Globecom Workshops (GC Wkshps), 2016Faster-Than-Nyquist (FTN) signaling is created when a digital communications signal has an occupied bandwidth less than the symbol rate. It has been previously demonstrated that FTN signals can achieve bit error rates near that of full-bandwidth signaling for BPSK and 4-QPSK modulation.
Michael McGuire +2 more
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Linear precoding for Faster-than-Nyquist signaling
2017 3rd IEEE International Conference on Computer and Communications (ICCC), 2017Faster-than-Nyquist (FTN) signaling is a nonorthogonal transmission scheme, in which the pulses appear faster than the rate known from the Nyquist intersymbol interference (ISI)-free transmission criterion. Due to the violation of the Nyquist theorem, while a higher transmission rate is offered, ISI is introduced and the receiver complexity is greatly ...
Heng Wang +4 more
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Faster-than-Nyquist Signaling for Optical Communications
2018 23rd Opto-Electronics and Communications Conference (OECC), 2018In this paper, we will discuss the faster-than-Nyquist (FTN) signaling for optical communications, including the single-carrier and multi-carrier FTN signaling.
Yaojun Qiao +5 more
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Faster than Nyquist signaling with limited computational resources
Physical Communication, 2021Abstract This paper focuses on performance analysis of Faster than Nyquist (FTN) signaling schemes that employ low-density parity-check (LDPC) codes, trellis-based detector and turbo equalization decoding principle. We propose an optimization procedure for shaping pulse design, that takes into account number of trellis states used for equalization ...
Srdan Brkic +2 more
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Polar coding for faster-than-Nyquist signaling
2017 IEEE/CIC International Conference on Communications in China (ICCC), 2017A polar coding scheme for faster than Nyquist (FTN) signaling system, named PcFTN, is proposed in this paper and turbo equalization is adopted to detect the received signal. First, the characteristics of the extrinsic information transfer (EXIT) curve both for polar decoder and FTN detector are analyzed. Then the construction method for polar codes are
Qingshuang Zhang +3 more
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Fundamentals of Faster-than-Nyquist Signaling
2016This chapter presents the fundamentals of Faster-than- Nyquist (FTN) signaling. As originally introduced, FTN increases the bit-rate in the signaling bandwidth by packing symbols closer in time, at the cost of introducing intersymbol interference (ISI).
Angelos D. Liveris +1 more
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Faster-Than-Nyquist Signaling With Index Modulation
IEEE Wireless Communications Letters, 2017In this letter, we propose a novel faster-than-Nyquist (FTN) transmission scheme relying on the time-domain single-carrier index-modulation (IM) concept. In the proposed FTN with IM (FTN-IM) transmitter, a subset of time-domain FTN symbols are activated, where the combination of the activated symbols conveys additional information further to the ...
Takumi Ishihara, Shinya Sugiura
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