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首页> 外文期刊>Wireless personal communications: An Internaional Journal >Performance Evaluation of Non-redundant Error Correcting Scheme Using Logistic Chaotic Map
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Performance Evaluation of Non-redundant Error Correcting Scheme Using Logistic Chaotic Map

机译：基于逻辑混沌映射的非冗余纠错方案性能评估

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摘要

In this paper an efficient error-correcting scheme based on logistic chaotic map for non-coherent chaos communication system without redundancy is presented and its performance is evaluated. The scheme uses one chaotic generator to generate two sequences one for each data bit value in a way that the end of the current chaotic sequence sets the initial value of the next sequence of the same symbol. With this arrangement, successive chaotic sequences having the same chaotic dynamics are created for the purpose of error correction. A suboptimal detection algorithm based on shortest distance calculation between the received sequence and the chaotic trajectories over nth-dimension is used for detecting the transmitted symbol and performing the errors-correction. The simulation results show that the scheme offers improvement in E-b/N-0 over the method before the error-correcting scheme and this improvement is increased as the trajectory dimension is increased. At bit-error probability of 10(-3), a gain of 0.5 dB is obtained in E-b/N-o over the method before the error-correcting scheme when the dimension is 4. The power point in the scheme is that error correction is based on chaotic dynamics and no redundant bits are needed. This would make the scheme a good candidate for applications that require high data transmission rates.
机译：提出了一种基于逻辑混沌映射的无冗余非相干混沌通信系统纠错方案，并对其性能进行了评估。该方案使用一个混沌生成器为每个数据位值生成两个序列，其方式为当前混沌序列的结尾设置同一符号下一个序列的初始值。通过这种布置，为了纠错的目的，创建具有相同混沌动力学的连续混沌序列。一种基于接收序列与第n维混沌轨迹之间最短距离计算的次优检测算法，用于检测传输符号并进行纠错。仿真结果表明，该方案与纠错方案之前的方法相比，在E-b / N-0方面有所改进，并且随着轨迹尺寸的增加，这种改进也得到了提高。在误码率为10（-3）的情况下，当尺寸为4时，在纠错方案之前的方法中，Eb / No的增益为0.5 dB。方案中的要点是纠错是基于在混沌动力学上，不需要冗余位。这将使该方案成为需要高数据传输速率的应用的理想选择。

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