High Throughput Parallel Concatenated Encoding and Decoding for Polar Codes: Design, Implementation and Performance Analysis
| Autor: | Huisheng Zhang, Zhu Han, Ang Gao, Jiaying Yin, Lixin Li, Xu Li, Wei Chen |
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| Rok vydání: | 2018 |
| Předmět: |
Computer science
020208 electrical & electronic engineering Concatenation Word error rate 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Belief propagation Encoding (memory) 0202 electrical engineering electronic engineering information engineering Low-density parity-check code Throughput (business) Algorithm Decoding methods Computer Science::Information Theory Communication channel |
| Zdroj: | IWCMC |
| DOI: | 10.1109/iwcmc.2018.8450398 |
| Popis: | Polar codes can provably achieve the capacity of a symmetric binary discrete memoryless channel and have low encoding and decoding complexity. However, the error rate performance of polar codes decoding in short and moderate length is not very well, moreover, the encoding and decoding of polar codes with the conventional serial mode will lead to poor throughput. In this paper, we propose a hardware architecture of parallel encoding and decoding scheme for polar codes concatenation with LDPC, and take advantage of the parallelism of belief propagation (BP) decoding algorithm of the two codes to reduce the decoding delay. We compare the performance of concatenated scheme with polar codes and investigate the throughput implemented on graphic processing unit (GPU) for Gaussian channel. Experiment results show that the performance of the concatenated scheme outperform only polar codes, and the throughput of the proposed parallel architecture is obviously faster than that of the serial. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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