论文标题
与迭代解码的位相互交流的编码基于能量的调制
Bit-Interleaved Coded Energy-Based Modulation with Iterative Decoding
论文作者
论文摘要
本文为多级别的基于能量的编码调制系统开发了低复杂性近乎最佳的非相关接收器。受涡轮加工原则的启发，我们将次交换的编码调制的基本原理与迭代解码（BICM-ID）结合到了拟议的接收器设计中。所得系统称为位于迭代解码（BICEM-ID）的基于刻度的编码基于能量的调制，并且对其错误性能进行了分析研究。具体而言，我们在无反馈（FF）和无错误的反馈（EFF）方案中的非耦合BICEM-ID系统的平均成对误差概率（PEP）中得出上限。据揭示，在FF方案中的性能分析中，最近的邻居的定义与相干BICM-ID对应物中的定义非常不同。该分析还揭示了从编码位到能级的映射如何影响BICEM-ID系统的多样性顺序和编码增益。然后制定了用于良好映射的设计标准，并提出了算法以找到一组最佳的BICEM-ID映射。最后，模拟结果证实了主要的分析结果。
This paper develops a low-complexity near-optimal non-coherent receiver for a multi-level energy-based coded modulation system. Inspired by the turbo processing principle, we incorporate the fundamentals of bit-interleaved coded modulation with iterative decoding (BICM-ID) into the proposed receiver design. The resulting system is called bit-interleaved coded energy-based modulation with iterative decoding (BICEM-ID) and its error performance is analytically studied. Specifically, we derive upper bounds on the average pairwise error probability (PEP) of the non-coherent BICEM-ID system in the feedback-free (FF) and error-free feedback (EFF) scenarios. It is revealed that the definition of the nearest neighbors, which is important in the performance analysis in the FF scenario, is very different from that in the coherent BICM-ID counterpart. The analysis also reveals how the mapping from coded bits to energy levels influences the diversity order and coding gain of the BICEM-ID systems. A design criterion for good mappings is then formulated and an algorithm is proposed to find a set of best mappings for BICEM-ID. Finally, simulation results corroborate the main analytical findings.
