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Showing 1 to 20 of 20 for “"Decision Feedback Equalizer"”.

  1. High-Speed Serial Data Link Design and Simulation

    Lee, Edward W.University of Illinois at Urbana-Champaign2010

    … architecture uses a continuous-time receiver equalizer to equalize a channel with known frequency response. The second incorporates an adaptive decision feedback equalizer (DFE) for use in unknown or time-varying channels.

    uiuc Repository record

  2. A class of batch-iterative methods for the equalization of intersymbol interference channels

    Chan, Albert M. (Albert Michael), 1975-Massachusetts Institute of Technology1999

    … in a batch-iterative fashion. The iterated-decision or multipass equalizer uses symbol decisions made during the previous iteration to cancel out both precursor and postcursor ISi during the current iteration. With each successive pass of the equalizer, the probability of symbol error …

    mit Repository record

  3. Analysis of and techniques for adaptive equalization for underwater acoustic communication

    Blair, Ballard J. S.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution2011

    … data-rate communication challenging. Adaptive decision feedback equalization is a common method to compensate for distortions introduced by the underwater acoustic channel. Limited work has been done thus far to introduce the physics of the underwater channel into improving and better …

    woods-hole Repository record

  4. Analysis of and techniques for adaptive equalization for underwater acoustic communication

    Blair, Ballard J. S. (Ballard Justin Smith)Massachusetts Institute of Technology2011

    … data-rate communication challenging. Adaptive decision feedback equalization is a common method to compensate for distortions introduced by the underwater acoustic channel. Limited work has been done thus far to introduce the physics of the underwater channel into improving and better …

    mit Repository record

  5. Turbo coding and equalization for wireless communication systems

    Oletu, Grace OgheneruonanoUniversity of Greenwich2013

    … channel. Conventional approaches implement an equalizer to remove the ISI, but significant performance gain can be achieved through joint equalization and decoding. In this thesis, the suitability of turbo equalization as a means of achieving low bit error rate for high data communication …

    greenwich Repository record

  6. Receiver equalization for a 10 gigabit per second high-speed serial link in 65 nm CMOS technology

    Rajwardan, AshwaryaUniversity of Illinois at Urbana-Champaign2019

    … 3.1 link in 65 nm CMOS technology. Two types of equalizers are implemented: a continuous time linear equalizer (CTLE) and a 1-tap full-rate decision feedback equalizer (DFE). The combined CTLE and DFE architecture is simulated with an rms receiver clock jitter of 5.3 ps and achieves a BER < …

    uiuc Repository record

  7. Design and analysis of a high-rate acoustic link for underwater video transmission

    Pelekanakis, KonstantinosMassachusetts Institute of Technology2004

    … is accomplished by joint operation of a decision feedback equalizer (DFE) and a second order phase locked loop (PLL). System performance is demonstrated experimentally, using transmission rate of 25000 symbols/sec at a carrier frequency of 75 kHz over a 10 m vertical path.

    mit Repository record

  8. Equalization Using Graphical Models

    Drost, Robert JamesUniversity of Illinois at Urbana-Champaign2015

    … a constrained linear minimum mean squared error equalizer and a generalized decision feedback equalizer. In addition to providing practical algorithms, the factor graph framework yields insight into their mechanics and interrelationships. We then consider algorithms for turbo equalization, using …

    uiuc Repository record

  9. Multi-path Penalty metric in underwater acoustic communication for autonomy and human decision-making

    Howard, Bradli A.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution2021

    … the operation of a channel estimate-based decision feedback equalizer in an acoustic modem. The three metrics are then tested in a hardware-in-the-loop Virtual Ocean simulator for an autonomous undersea vehicle (AUV) communicating with a collaborator. Using field data of modem statistics …

    woods-hole Repository record

  10. Multi-path Penalty Metric in Underwater Acoustic Communication for Autonomy and Human Decision-making

    Howard, Bradli AnneMassachusetts Institute of Technology2021

    … the operation of a channel estimate-based decision feedback equalizer in an acoustic modem. The three metrics are then tested in a hardware-in-the-loop Virtual Ocean simulator for an autonomous undersea vehicle (AUV) communicating with a collaborator. Using field data of modem statistics …

    mit Repository record

  11. Sparse equalizer filter design for multi-path channels

    Feng, Xue, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2012

    … thesis, sparse Finite Impulse Response (FIR) equalizers are designed for sparse multi-path channels under a pre-defined Mean Squared Error (MSE) constraint. We start by examining the intrinsic sparsity of the Zero Forcing equalizers and the FIR Minimum MSE (MMSE) equalizers. Next the …

    mit Repository record

  12. Simulation of adaptive equalization in two-ray, SIRCIM, and SMRCIM mobile radio channels

    Huang, WeifengVirginia Tech1991

    … the following structures: the linear transversal equalizer (LTE), the decision feedback equalizer (DFE), the lattice equalizer, and the maximum likelihood sequence estimation (MLSE) equalizer. Least mean square (LMS) and recursive least squares (RLS) algorithms are used as the adaptive algorithms …

    vt Repository record

  13. Adaptive Equalization for Indoor Channels

    Morton, John M.Virginia Tech1998

    … covered in this work are the linear transversal equalizer (LTE), the fractionally spaced equalizer (FSE), the decision-feedback equalizer (DFE), and the maximum-likelihood sequence estimation (MLSE) equalizer. This work also covers adaptive algorithms for equalization including both the least …

    vt Repository record

  14. Underwater acoustic communication over Doppler spread channels

    Eggen, Trym H.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1997

    … spread observed in real data are obtained. A decision feedback equalizer (DFE) adapted with recursive least squares (RLS) is analyzed, and its limit with respect to pure Doppler spread is found. By using the DFE with a phase locked loop (PLL) suboptimal system behavior is found, and this is …

    woods-hole Repository record

  15. Low complexity turbo equalizations and lower bounds on information rate for intersymbol interference channels.

    Jeong, Seongwook2011

    … algorithm. First, the soft-in soft-out (SISO) decision feedback equalizer (DFE) algorithm with the extrinsic information mapping methods that directly take into account the error propagation effects of DFE is presented. We also utilize a pair of DFE operating in opposite directions in turbo …

    umn Repository record

  16. Overloaded Array Processing: System Analysis, Signal Extraction Techniques, and Time-delay Estimation

    Bayram, SaffetVirginia Tech2000

    … array processing algorithms, Multi-User Decision Feedback Equalizer (MU-DFE), Iterative Least Squares with Projection (ILSP), and Iterative Least Squares with Enumeration (ILSE). ILSE is a non-linear joint maximum-likelihood detector, is shown to demodulate many more signals than elements …

    vt Repository record

  17. Complexity reduction in multiple input multiple output algorithms

    Gor, LeonVictoria University2007

    … and performance to the Recursive Least Squares Decision Feedback Equalizer (RLS-DFE) tracking system in [1]. The R tracking scheme is shown to achieve more accurate channel estimates compared to the channel tracking scenario, but this advantage does not translate into better Bit Error Rate (BER) …

    vu-aus Repository record

  18. Blind multidimensional matched filtering for wireless channelswith multiple antennas

    Coskun, A.University of Westminster2011

    … approaches differ from each other in the channel equalizer structure that they employ. The first approach is the blind implementation of the correlation-based Decision Feedback Equalizer (DFE). The second approach equalizes the Single Input Multiple Output (SIMO) channel and obtains its estimate …

    westminster Repository record

  19. Digital pulse interval modulation for indoor optical wireless communication systems

    Hayes, Andrew RobertSheffield Hallam University2002

    … is also carried out on DPIM using a zero-forcing decision feedback equalizer (ZF-DFE), which represents a more traditional approach to mitigating the effects of ISI. It is shown that the guard band technique offers a similar level of performance to the ZF-DFE on all but the most severe channels, …

    sheffield-hallam Repository record

  20. Receivers for energy efficient optical interconnects

    Ahmed, Mostafa GamalUniversity of Illinois at Urbana-Champaign2021

    … transimpedance amplifier (TIA) and a 4-tap decision feedback equalizer (DFE) to overcome the noise-bandwidth trade-off. Fabricated in a 65nm CMOS technology and heterogeneously integrated with a photonic IC, the proposed optical receiver achieves OMA sensitivity of -16.8 dBm with 1.9 pJ/bit …

    uiuc Repository record