Design and implementation of turbo decoders for software defined radio

This project played a key part in creation of a softwaredefined radio system capable of implementing the 4g cellphone protocol. The decoder implemented here offers to new radio equipment sdr, the flexibility of a programmable system. Configurable and scalable high throughput turbo decoder architecture for. An improved stochastic decoding algorithm of lte turbo codes. Softwaredefined systems are becoming increasingly common, with wireless systems leading the way. Sep 10, 2011 turbo code is a computationally intensive channel code that is widely used in current and upcoming wireless standards. Turbo decoder the original professional locksmith tools. Design and implementation of turbo decoders for software defined radio abstract. Introduction software defined radio sdr promises to revolutionize the communication industry by delivering lowcost, flexible software solutions for wireless communication protocols. Software defined radio makes wireless communications easier, more efficient, and more reliable. To meet the 5g vision, service and performance requirements, various candidate technologies have been proposed in 5g new radio.

The umts turbo code and an efficient decoder implementation. Design and implementation of turbo decoders for software defined radio y. This translates to supporting various features and functionalities, such as updating and upgrading through reprogramming, without the need to replace the hardware on which. Developers have the option to implement communication standards in three different methods. Channel equalization is an important subsystem in the software defined radio sdr receiver. Hardware, here accompanies with software which is more we can discuss as a software defined radio application. This thesis investigates the design and implementation of turbo codes over the gnu radio.

The arm architecture is the largest computer architecture by volume in the world. Decoding algorithm simplification and quantization leads to reduction of power consumption in the radio receiver. Design and implementation of lowpower turbo encoder for dvb. Design and implementation of highperformance fpga signal processing datapaths for software defined radios chris h. The asip hence outperforms stateoftheart decoder architectures targeting software defined radio by at least a factor of three while consuming only 60 % or less of the logic area. The software communications architecture sca, developed by the joint tactical radio system program of the us department of defense, is an open architecture for implementing sdr, relying on commercial technology, standard interfaces, and wellknown design patterns. Design and implementation of adaptive turbo encoder for. However, turbo decoding is computationally intensive, and its low power implementations have. Implementation of a high throughput 3gpp turbo decoder on.

This technology is based on software defined wireless protocols, as opposed to hardwarebased solutions. The processor is accompanied with accelerating computing units, which can be controlled in detail. As the functionality is defined in software, a new technology can be easily implemented in a software radio by means of a software upgrade. Citeseerx document details isaac councill, lee giles, pradeep teregowda. In this study, a maxlogmap turbo decoder is implemented as an applicationspecific instructionset processor. A software defined radio sdr is a communication system which can. Software defined radiosdr is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in. Software defined radio sdr is the technology which has given researchers the opportunity. Pollara1 since their discovery in 1993, turbo codes have been found to provide excellent. This paper deals with an fpga implementation of a high performance fm modulator and demodulator for software defined radio sdr system. Ipn progress report 42148 february 15, 2002 turbodecoder implementation for the deep space network k. Gpu implementation of a programmable turbo decoder for software defined radio applications conference paper in proceedings of the ieee international conference on vlsi design january 2012 with.

Design and implementation of lowenergy turbo decoders, ieee trans. The key objective of this project is to design a decoder which can be used for hardware purposes. A programmable maxlogmap turbo decoder implementation. Thanks to these previous studies, this paper discusses the implementation issues of stochastic turbo decoders. Sdr design for cognitive radio using mimoturbo coder j. Design of a hybrid reconfigurable software defined radio. When beginning a project, practicing engineers, technical managers, and graduate students can save countless hours by considering the concepts presented in these pages. Request pdf design and implementation of turbo decoders for software defined radio software dened radio sdr is an emerging paradigm for wireless terminals, in which the physical layer of. In this chapter, we propose a novel design of scalable and realtime data acquisition software architecture for software defined radio sdr using universal software radio peripheral usrp. Software defined radio sdr is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in software rather than by asics. Design and implementation of an efficient sca framework. Turbo decoder implementation for the deep space network k. This thesis does not include proprietary or classified information.

Design and implementation of an efficient sca framework for. Jan 20, 2016 in this work, we design and implement a networkcoded cooperation ncc system that operates in real time through the use of software defined radio sdr nodes for the first time in the literature. Implementation of turbo codes on gnu radio unt digital. In the advent of very high data rates of the upcoming 3g longterm evolution telecommunication systems, there is a crucial need for efficient and flexible turbo decoder implementations. Software defined radio sdr is a popular application within the wireless infrastructure market. Request pdf design and implementation of turbo decoders for software defined radio software dened radiosdr is an emerging paradigm for wireless. However, building a softwaredefined radio sdr has traditionally not been easy. This project played a key part in creation of a software defined radio system capable of implementing the 4g cellphone protocol.

We do not sell trough amazon, alibaba, aliexpress, dhgate, ivailov, keyprogtools, ebay. Design and implementation of a software defined radio receiver for am band except where reference is made to the work of others, the work described in this thesis is my own or was done in collaboration with my advisory committee. However, building a software defined radio sdr has traditionally not been easy. Architectureaware ldpc code design for software defined radio y. Implementation of a high throughput 3gpp turbo decoder on gpu. This technology is based on softwaredefined wireless protocols, as opposed to hardwarebased solutions. Electrical and computer engineering this project summarizes the design and implementation of. Implementation of turbo codes on gnu radio digital library.

On this page we will attempt to list, categorize and provide a brief overview of each software program. Sdr is a popular prototyping platform for wireless communication systems due to its flexibility and utility. Many of the current and next generation wireless protocols include turbo coding because of its superior performance. With the help of this design, we have been able to improve the. A reconfigurable asip for convolutional and turbo decoding in. Software defined radio sdr is a technology for radio communication.

In this work, we design and implement a networkcoded cooperation ncc system that operates in real time through the use of softwaredefined radio sdr nodes for the first time in the literature. For portable radio, low power consumption is a key implementation issue. Software defined radiosdr is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in software rather than by asics. Pdf design and implementation of turbo decoders for. Gpu implementation of a programmable turbo decoder for software defined radio applications conference paper in proceedings of the ieee international conference on vlsi design. In this chapter, we propose a novel design of scalable and realtime data acquisition software architecture for softwaredefined radio sdr using universal software radio peripheral usrp. The asip hence outperforms state of theart decoder architectures targeting software defined radio by at least a factor of three while consuming only 60 % or less of the logic area. A reconfigurable asip for convolutional and turbo decoding.

A software defined radio sdr is a communication system which can implement different modulation schemes and tune to any frequency band by means of software that can control the programmable hardware. Software defined radio sdr, a communication system. Pollara1 since their discovery in 1993, turbo codes have been found to provide excellent performance with relatively low complexity. This paper provides a description of the turbo code used by the umts thirdgeneration cellular standard, as standardized by the thirdgeneration partnership project 3gpp, and proposes an efficient decoder suitable for insertion into software defined radio architectures or for use in computer simulations. This paper presents an approach of modelbased design for implementing a digital communication system on an fpga for software defined radio sdr. Abstract software defined radio sdr is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in software rather than by asics. Radio where hardware is reconfigurable and will work with multiple software defined waveforms baseband and digital if may be implemented with fpgas, asics, dsp. By yuan lin, scott mahlke, trevor mudge and chaitali chakrabarti. Papers, talks and patents alastair reid researcher at. Design and implementation of low power high speed symmetric. Design and implementation of adaptive turbo encoder for quantized software defined lowpower dvbrcs radios. Turbo decoder usualy people look for turbo pick, turbo tool, turbo key the real name is turbodecoder and that is the original.

Radio where hardware is reconfigurable and will work with multiple softwaredefined waveforms baseband and. We categorize the programs into general purpose software, single purpose software, research software and software compatible with audio piping. In order to provide a concrete example, the discussion is limited to the turbo code used by the univer. Many of the current and next generation wireless protocols. Softwaredefined radio sdr is a programmable transceiver with the capability of operating various wireless communication protocols without the need to change or update the hardware. Gpgpu is a programmable commodity processor that achieves high performance computation power by using many simple cores. Software defined radiosdr is an emerging paradigm for wireless terminals, in. Design and implementation of turbo decoders for software defined. The individual component of proposed fm modulator and demodulator has been optimized in such a way that the overall design consists of a highspeed, area optimized and lowpower features.

Both of them have been repeatedly investigated and the relevant advantages are well documented. Design and implementation of digital signal processing hardware for a software radio reciever by jake talbot, master of science utah state university, 2008 major professor. Design and implementation of lowpower turbo encoder for dvbrcs software radio sherif welsen shaker, member, ieee, salwa hussien elramly, senior member, ieee and khaled ali shehata, member, ieee s 464. Software defined radio let our software handle the complexitydevesh samaiyam. In this paper, we present a 3gpp lte compliant turbo decoder accelerator that takes advantage of the. This book bridges the gap between academic research and practical implementation. Modelbased design for software defined radio on an fpga. Using a single architecture to handle a wide range of frequencies and increasingly complex protocols reduces cost and size and can reduce the overall power consumption. Architecture and component selection for optimized sdr. Software defined radio sdr is an emerging paradigm for wireless terminals, in which the physical layer of communication protocols is implemented in softw. The software has been designed and tested in multithread model, using labview, which guarantees realtime performance and efficiency. The sdr transceiver module designed has been fully implemented and has the ability to.

This paper provides a description of the turbo code used by the umts thirdgeneration cellular standard, as standardized by the thirdgeneration partnership project 3gpp, and proposes an efficient decoder suitable for insertion into softwaredefined radio. Simulation results for viterbi and turbo decoding demonstrate maximum throughput of 196 and 34 mbs, respectively. Thus, the resources can be controlled in detail with software. The remainder of the paper is organized as follows. Design and implementation of turbo decoders for software. The fifth generation 5g new radio nr has been developed to provide significant improvements in scalability, flexibility, and efficiency in terms of power usage and spectrum as well. Design and implementation of lowpower turbo encoder for.

This hardware reference design, leveraging the real time signal processing of the ti dsp and its universal parallel port upp, along with ti adc and dac, offers sdr algorithm developers a quick platform to enable quick development and demonstration of algorithms and solutions. Implementation of turbo code with early iteration termination in. Stochastic decoding turbo codes lte software defined radio data parallelism. Sdr design for cognitive radio using mimoturbo coder. Decoders are used in the receiver section which is helpful in obtaining the desired information. An sdr has to possess elements of reconfigurability, intelligence and software programmable hardware. Turbodecoder implementation for the deep space network. Implementations processing one trellis stage in less. Gpu implementation of a programmable turbo decoder for. A low complex turbo decoder in gnu radio along with universal software radio. Design and implementation of turbodecoders softwaredefined radio. Gnu radio is the software part of sdr that allows implementing various features.

Oct 04, 2006 design and implementation of turbo decoders for software defined radio abstract. In ieee workshop on signal processing design and implementation sips. Design and fpga implementation of stochastic turbo decoder. The first fpgabased implementation of a stochastic turbo decoder is presented. K design and implementation of turbo decoders for software.

Softwaredefined radio sdr is a technology for radio communication. Software defined systems are becoming increasingly common, with wireless systems leading the way. Design and implementation of turbodecoders softwaredefined. Design and implementation of lowpower turbo encoder for dvbrcs software radio sherif welsen shaker, member, ieee, salwa hussien elramly, senior member, ieee and khaled ali. Request pdf design and implementation of turbo decoders for software defined radio software dened radiosdr is an emerging paradigm for wireless terminals, in which the physical layer of.