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Trellis coded modulation techniques

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Arani, Faramarz Shayan (1993) Trellis coded modulation techniques. PhD thesis, University of Warwick.

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Official URL: http://webcat.warwick.ac.uk/record=b1416194~S15

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Abstract

The subject of this thesis is an investigation of various trellis coded modulation (TCM) techniques that have potential for out-performing conventional methods. The primary advantage of TCM over modulation schemes employing traditional error-correction coding is the ability to achieve increased power efficiency without the normal expansion of bandwidth introduced by the coding process. Thus, channels that are power limited and bandwidth limited are an ideal application for TCM.

In this thesis, four areas of interest are investigated. These include: signal constellation design, multilevel convolutional coding, adaptive TCM and finally low-complexity implementation of TCM.

An investigation of the effect of signal constellation design on probability of error has led to the optimisation of constellation angles for a given channel signal to noise ratio and a given code.

The use of multilevel convolutional codes based on rings of integers and multi-dimensional modulation is presented.

The potential benefits of incorporating several modulation schemes with adaptive TCM which require a single decoder are also investigated.

The final area of investigation has been the development of an algorithm for decoding of convolutional codes with a low complexity decoder.

The research described in this thesis investigated the use of trellis coded modulation to develop various techniques applicable to digital data transmission systems. Throughout this work, emphasis has been placed on enhancing the performance or complexity of conventional communication systems by simple modifications to the existing structures.

Item Type: Thesis (PhD)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Library of Congress Subject Headings (LCSH): Trellis-coded modulation, Modulation (Electronics), Signal processing, Coding theory
Official Date: August 1993
Dates:
DateEvent
August 1993Submitted
Institution: University of Warwick
Theses Department: Department of Engineering
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Honary, Bahram
Extent: xvii, 164 leaves : illustrations
Language: eng

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