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首页> 外文会议>International CET Conference on Control, Communication, and Computing >Performance Comparison of Parallel Concatenated Gallager Codes with Different Types of Interleavers
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Performance Comparison of Parallel Concatenated Gallager Codes with Different Types of Interleavers

机译：不同类型交织器的并行级联Gallager码的性能比较

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摘要

Parallel concatenated Gallager code (PCGC) is a class of concatenated code in which Low density parity check (LDPC) codes are used as component codes in interleaver-free Turbo code architecture. These codes were introduced in order to reduce the encoding and decoding complexity of long block length LDPC codes. In this paper, we evaluate the performance of PCGC along with an interleaver included, as in Turbo code architecture. Basically, we compare the performance of PCGC with random interleaver and some structured interleavers in binary symmetric channel (BSC). It is shown that PCGC with random interleaver outperforms a dedicated LDPC of same frame length and code rate over BSC. Simulation results show that structured interleavers almost achieved the performance of random interleaver for short frame length codes. Furthermore, the application of PCGC with interleaver for cognitive radio data transmission is also discussed.
机译：并行级联Gallager码（PCGC）是一类级联码，其中低密度奇偶校验（LDPC）码在无交织器Turbo码体系结构中用作组件代码。引入这些代码是为了减少长块长度LDPC码的编码和解码复杂性。在本文中，我们评估了PCGC的性能以及包括在Turbo代码架构中的交织器。基本上，我们在二进制对称信道（BSC）中比较PCGC与随机交织器和某些结构化交织器的性能。结果表明，具有随机交织器的PCGC优于BSC上具有相同帧长和相同码率的专用LDPC。仿真结果表明，结构化交织器几乎可以实现短帧长码随机交织器的性能。此外，还讨论了带交织器的PCGC在认知无线电数据传输中的应用。

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