FPGA Implementation of Block Turbo Codes PDF Download
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Author: Sarat Krishnan
Publisher:
ISBN:
Category : Field programmable gate arrays
Languages : en
Pages : 246
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Book Description
Author: Sarat Krishnan
Publisher:
ISBN:
Category : Field programmable gate arrays
Languages : en
Pages : 246
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Book Description
Author: Alexandre Giulietti
Publisher: Springer Science & Business Media
ISBN: 1461504775
Category : Technology & Engineering
Languages : en
Pages : 158
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Book Description
PREFACE The increasing demand on high data rate and quality of service in wireless communication has to cope with limited bandwidth and energy resources. More than 50 years ago, Shannon has paved the way to optimal usage of bandwidth and energy resources by bounding the spectral efficiency vs. signal to noise ratio trade-off. However, as any information theorist, Shannon told us what is the best we can do but not how to do it [1]. In this view, turbo codes are like a dream come true: they allow approaching the theoretical Shannon capacity limit very closely. However, for the designer who wants to implement these codes, at first sight they appear to be a nightmare. We came a huge step closer in striving the theoretical limit, but see the historical axiom repeated on a different scale: we know we can achieve excellent performance with turbo codes, but not how to realize this in real devices.
Author: Krishnamohan Thangarajah
Publisher:
ISBN:
Category :
Languages : en
Pages : 302
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Book Description
Author: Cristian Anghel
Publisher:
ISBN: 9786062308490
Category :
Languages : en
Pages : 0
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Book Description
Author: M. Reza Soleymani
Publisher: Springer Science & Business Media
ISBN: 0306476770
Category : Technology & Engineering
Languages : en
Pages : 232
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Book Description
6. 5 137 7 Performance of BTCs and 139 their Applications 7. 1 Introduction 139 7. 2 Some Results from the Literatures 139 7. 3 Applications of Block Turbo Codes. 142 7. 3. 1 Broadband Wireless Access Standard 144 7. 3. 2 Advanced Hardware Architectures (AHA) 145 7. 3. 3 COMTECH EF DATA 147 7. 3. 4 Turbo Concept 149 7. 3. 5 Paradise Data Com 150 Summary 7. 4 151 8 Implementation Issues 153 8. 1 Fixed-point Implementation of Turbo Decoder 153 8. 1. 1 Input Data Quantization for DVB-RCS Turbo Codes 155 8. 1. 2 Input Data Quantization for BTC 157 8. 2 The Effect of Correction Term in Max-Log-MAP Algorithm 159 8. 3 Effect of Channel Impairment on Turbo Codes 163 8. 3. 1 System Model for the Investigation of Channel Impairments 163 8. 3. 2 Channel SNR Mismatch 164 8. 3. 2. 1 Simulation Results 165 8. 3. 3 Carrier Phase Recovery 170 8. 3. 3. 1 The Effect of Phase Offset on the Performance of RM Turbo Codes 170 8. 3. 3. 2 The Effect of Preamble Size on the Performance of RM Turbo Codes 170 8. 3. 3. 3 Simulation Results 170 8. 4 Hardware Implementation of Turbo Codes 171 8. 5 Summary 175 9 177 Low Density Parity Check Codes 9. 1 Gallager Codes: Regular Binary LDPC Codes 177 9. 2 Random Block Codes 178 9. 2. 1 Generator Matrix 179 9. 2.
Author: Keattisak Sripimanwat
Publisher: Springer Science & Business Media
ISBN: 140203685X
Category : Technology & Engineering
Languages : en
Pages : 393
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Book Description
Turbo Code Applications: a journey from a paper to realization presents c- temporary applications of turbo codes in thirteen technical chapters. Each chapter focuses on a particular communication technology utilizing turbo codes, and they are written by experts who have been working in related th areas from around the world. This book is published to celebrate the 10 year anniversary of turbo codes invention by Claude Berrou Alain Glavieux and Punya Thitimajshima (1993-2003). As known for more than a decade, turbo code is the astonishing error control coding scheme which its perf- mance closes to the Shannon’s limit. It has been honored consequently as one of the seventeen great innovations during the ?rst ?fty years of information theory foundation. With the amazing performance compared to that of other existing codes, turbo codes have been adopted into many communication s- tems and incorporated with various modern industrial standards. Numerous research works have been reported from universities and advance companies worldwide. Evidently, it has successfully revolutionized the digital commu- cations. Turbo code and its successors have been applied in most communications startingfromthegroundorterrestrialsystemsofdatastorage,ADSLmodem, and ?ber optic communications. Subsequently, it moves up to the air channel applications by employing to wireless communication systems, and then ?ies up to the space by using in digital video broadcasting and satellite com- nications. Undoubtedly, with the excellent error correction potential, it has been selected to support data transmission in space exploring system as well.
Author: Nong Le
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
List-based algorithms for decoding Block Turbo Codes (BTC) have gained popularity due to their low computational complexity. The normal way to calculate the soft outputs involves searching for a decision code word D and a competing codeword B. In addition, a scaling factor nj and an estimated reliability value ? are used. In this thesis, we present a new approach that does not require nj and ?. Soft outputs are generated based on the Euclidean distance property of decision code words. More importantly, such algorithm has very low computational complexity and is very attractive for practical applications. Based on the synthesis result of FPGA (Field Programmable Gate Array) implementations of the new algorithm, significant complexity saving (up to 79%) is achieved compared to commercially available products. In terms of error performance, we observe certain improvement (0.3dB coding gain) for BTCs of large Hamming distance and negligible performance degradation for BTCs of short Hamming distance.
Author: Guan Wang
Publisher:
ISBN:
Category : Decoders (Electronics)
Languages : en
Pages : 188
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Book Description
Author: Cyrille Chavet
Publisher: Springer
ISBN: 3319105698
Category : Technology & Engineering
Languages : en
Pages : 197
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Book Description
This book provides thorough coverage of error correcting techniques. It includes essential basic concepts and the latest advances on key topics in design, implementation, and optimization of hardware/software systems for error correction. The book’s chapters are written by internationally recognized experts in this field. Topics include evolution of error correction techniques, industrial user needs, architectures, and design approaches for the most advanced error correcting codes (Polar Codes, Non-Binary LDPC, Product Codes, etc). This book provides access to recent results, and is suitable for graduate students and researchers of mathematics, computer science, and engineering. • Examines how to optimize the architecture of hardware design for error correcting codes; • Presents error correction codes from theory to optimized architecture for the current and the next generation standards; • Provides coverage of industrial user needs advanced error correcting techniques. Advanced Hardware Design for Error Correcting Codes includes a foreword by Claude Berrou.
Author: Sukanta Kumar Sabut
Publisher: Springer Nature
ISBN: 9813348666
Category : Computers
Languages : en
Pages : 575
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Book Description
The book proposes new technologies and discusses innovative solutions to various problems in the field of communication, circuits, and systems, as reflected in high-quality papers presented at International Conference on Communication, Circuits, and Systems (IC3S 2020) held at KIIT, Bhubaneswar, India from 16 – 18 October 2020. It brings together new works from academicians, scientists, industry professionals, scholars, and students together to exchange research outcomes and open up new horizons in the areas of signal processing, communications, and devices.
