Design Space Exploration of LDPC Decoders Using High-Level Synthesis

Andrade, Juliane; George, Nithin V.; Karras, Kimon; Novo, David; Pratas, Frederico; Sousa, Leonel; Ienne, Paolo; Falcão, Gabriel; Silva, Vítor

doi:10.1109/access.2017.2727221

Cited by 22 publications

(10 citation statements)

References 37 publications

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“…The binary information frame length is 192 bits, and the value of q is taken to 2. The H with a lower triangular is constructed by a QC algorithm, then the G is derived through Gaussian elimination [28], [29]. The Log-FFT-BP algorithm is adopted for LDPC decoding.…”

Section: Numerical Results and Analysismentioning

confidence: 99%

Information Transmission Schemes Based on Adaptive Coded Modulation for UAV Surveillance Systems With Satellite Relays

Xue

Zhao

Tang³

2020

IEEE Access

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To expand their search range, unmanned aerial vehicles (UAVs) used for surveillance employ satellites as relays to forward monitoring data to the UAV's command and control centers. With updated sensors, the amount of UAV detection data increases sharply, and the demand for bandwidth and transmission rates increase continuously. In this paper, the Ka-band is introduced to the satellite system as a solution instead of the Ku, C and other bands. Highly robust constant coded modulations (CCMs), such as the binary low-density parity-check (LDPC) and the coded quadrature phase shift keying (QPSK) are adopted to handle poor channel conditions caused by rain attenuation, which lead to a waste of spectral efficiency, especially in poor weather conditions; Adaptive Coded Modulation (ACM) can relieve the problems detailed above. Aiming at the problem mentioned above, we have proposed two different transmission schemes for two typical scenarios, including high quality of service (QoS) and high throughput service. The first is the so called automatic repeat request (ARQ)+ACM (target bit error rate (BER) algorithm) for high QoS, which means ARQ and ACM are employed by UAV-satellite links and satellite-center links, respectively. The second, denoted as coded cooperation (CC)+ACM (the maximum throughput algorithm) for high throughput services, designates that CC is employed for UAV-satellite links and ACM is employed for satellite-center links. Simulation results show that the ARQ+ACM scheme achieves higher spectral efficiency than CCM in cases that keep the BER below 5 10 − , and the CC+ACM scheme attains 3 to 7.5 times the spectral efficiency of CCM.

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Section: Numerical Results and Analysismentioning

confidence: 99%

Information Transmission Schemes Based on Adaptive Coded Modulation for UAV Surveillance Systems With Satellite Relays

Xue

Zhao

Tang³

2020

IEEE Access

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“…A survey of HLS tools and compilers targeting heterogeneous high performance computing was presented in [15]. The authors of [22] provided studies to compare the performance of three commercially available HLS tools: Vivado HLS [23], Intel FPGA SDK for OpenCL [24], and MaxCompiler [12]. A comprehensive survey of commonly used open-source HLS tools appears in [25].…”

Section: A Behavioural High-level Synthesis (Hls) 2amentioning

confidence: 99%

Towards Automatic High-Level Code Deployment on Reconfigurable Platforms: A Survey of High-Level Synthesis Tools and Toolchains

et al. 2020

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Heterogeneous computing systems with tightly coupled processors and reconfigurable logic blocks provide great scope to improve software performance by executing each section of code on the processor or custom hardware accelerator that best matches its requirements and the system optimisation goals. This paper is motivated by the idea of a software tool that can automatically accomplish the task of deploying code, originally written for a conventional computer, to the processors and reconfigurable logic blocks in a heterogeneous system. We undertake an extensive survey of high-level synthesis tools to determine how close we are to this vision, and to identify any capability gaps. The survey is structured according to a new framework that clearly expresses the relationships between the many tools surveyed. We find that none of the existing tools can deploy general high-level code without manual intervention. Logic synthesis from arbitrary high-level code remains an open problem with dynamic data structures, function pointers and recursion all presenting challenges. Other challenges include automating the tasks of code partitioning, optimisation and design space exploration.

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“…It is based on widespread high-level language (HLL)C/C++. This will enable the user to design complex hardware designs [10]. The researchers in [1] using parallelism level 64 for frame size 2048-6144 and parallelism level 8 for frame size 256-2048 and using an interleaver proposed by them, and they conclude that the result of performance and latency that could use turbo code in future terrestrial broadcasting (TB) systems.…”

Section: Fig 1 General Block Diagram Of Digital Communication Systemsmentioning

confidence: 99%

Design Analysis of Turbo Decoder Based on One MAP Decoder Using High Level Synthesis Tool

Ali¹,

Alneema²

2020

(AREJ)

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High Level Synthesis (HLS) tool does not only simplify the designing operation and rapid prototyping but also allows the designers to explore large number of design's techniques such as parallelism, pipeline, memory partitioning and many other techniques. Turbo decoder based on Maximum APosterior Probability (MAP) algorithm is designed in this work using Vivado HLS. The normal turbo decoder with two MAP decoders were implemented with and without parallelism and proposed a new design of turbo decoder with one MAP decoder and it was designed with and without parallelism using different window technique in HLS tool which it is not explored previously. These designs were implemented for different frame size in this work. A comparison in latency and resource utilization where done and how a tradeoff done between these two parameters to reach the specific design that we need. The new design produces better results.

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Design Space Exploration of LDPC Decoders Using High-Level Synthesis

Cited by 22 publications

References 37 publications

Information Transmission Schemes Based on Adaptive Coded Modulation for UAV Surveillance Systems With Satellite Relays

Information Transmission Schemes Based on Adaptive Coded Modulation for UAV Surveillance Systems With Satellite Relays

Towards Automatic High-Level Code Deployment on Reconfigurable Platforms: A Survey of High-Level Synthesis Tools and Toolchains

Design Analysis of Turbo Decoder Based on One MAP Decoder Using High Level Synthesis Tool

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