Essays about: "Turbo Codes"

Showing result 1 - 5 of 13 essays containing the words Turbo Codes.

  1. 1. Faster than Nyquist Signaling with Spatial Coupling

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Haoran Liu; Lingwei Zhang; [2022]
    Keywords : Technology and Engineering;

    Abstract : The emergence of the Faster-Than-Nyquist signaling (FTN) technology has im- proved the tight spectrum resources by compressing the transmission interval between adjacent pulses. In a natural environment, data transmission via a wire- less medium and through multi-path, at a high data rate, the leakage of these paths among symbols can cause severe inter-symbol interference (ISI). READ MORE

  3. 2. Spatially Coupled Codes in Turbo Equalization

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Mgeni Makambi Mashauri; [2019]
    Keywords : Turbo equalization; spatial coupling; waterfall versus error floor; codes on graphs; iterative receivers; LDPC codes in turbo equalization; Technology and Engineering;

    Abstract : In this thesis we investigate the application of spatial coupling in turbo equalization. We show that with spatial coupling we can have a fresh perspective on the trade-off between performance in the waterfall and error floor region often encountered in the choice of codes for turbo equalization. READ MORE

  4. 3. Implementation of 3GPP LTE QPP Interleaver for SiLago

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Spandan Dey; [2019]
    Keywords : Quadratic Permutation Polynomial; QPP; interleaver; SiLago; Address Generation Unit; AGU; 3GPP; LTE; turbo codes; parallel; Quadratic Permutation Polynomial; QPP; interleaver; SiLago; Address Generation Unit; AGU; 3GPP; LTE; turbo codes; parallel;

    Abstract : Modern wireless communication systems have seen an increased usage of various channel coding techniques to facilitate improved throughput and latency. Interleavers form an integral part of these coding techniques and play a critical role by making the communication more robust and resilient to noise and other interference. READ MORE

  5. 4. Comparison of various concatenated convolutional code ensembles under spatial coupling

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Gabriel Iro; Rajeshwari Kabbinale; [2017]
    Keywords : Technology and Engineering;

    Abstract : A big challenge faced by the digital communication world today is increasing the reliability of information which is being transmitted. During the transmission of information, there is a possibility that the information is corrupted or distorted. READ MORE

  6. 5. Evaluation of flexible SPA based LPDC decoder using hardware friendly approximation methods

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Afshin Seraj; Deepak Yadav; [2017]
    Keywords : forward-backward; SPA; soft-xor; sum product algorithm; approximation; decoder; LDPC; Technology and Engineering;

    Abstract : Due to computation-intensive nature of LDPC decoders, a lot of research is going towards efficient implementation of their original algorithm (SPA). As "Min-Sum" approximation is basically an overestimation of SPA, this thesis investigates more accurate, yet area efficient, approximations of SPA, to select an optimum one. READ MORE