并行编码:一个理性思考编码抗噪声、突发错误和干扰的理由
Concurrent Coding: A Reason to Think Differently About Encoding Against Noise, Burst Errors and Jamming
摘要:
并发编码是一种非传统的编码技术,它同时提供对噪声、突发错误和干扰的保护。这个简单易懂的概念通过区分两种类型的代码来研究,开放和封闭,大部分的研究集中在封闭代码上。并行编码具有固有的同步方法,因此不需要添加额外的同步信号。这使得在存在噪声和突发错误的情况下能够对隔离的码字传输进行同步和解码。与扩频技术CDMA进行了比较。在同类比较的情况下,并发编码对随机噪声影响的性能更好,对突发错误的性能更好,并且在传输能量效率方面更优越
英文摘要:
Concurrent coding is an unconventional encoding technique that simultaneously provides protection against noise, burst errors and interference. This simple-to-understand concept is investigated by distinguishing 2 types of code, open and closed, with the majority of the investigation concentrating on closed codes. Concurrent coding is shown to possess an inherent method of synchronisation thus requiring no additional synchronisation signals to be added. This enables an isolated codeword transmission to be synchronised and decoded in the presence of noise and burst errors. Comparisons are made with the spread spectrum technique CDMA. With a like-for-like comparison concurrent coding performs comparably against random noise effects, performs better against burst errors and is far superior in terms of transmitted energy efficiency
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