Molecular Communications Based on Probabilistic Constellation Shaping: Optimal Detection and Performance Analysis

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-09-20 DOI:10.1109/LCOMM.2024.3464695

Jingcan Chen;Yuankun Tang;Miaowen Wen;Liping Li

引用次数: 0

Abstract

Probabilistic constellation shaping (PCS) has been shown to be effective for molecular communications. Reed-Solomon coded PCS (RS-PCS) is one of the promising realizations proposed recently that combines PCS and channel coding through a parallel transmitter structure. However, the current receiver designed for RS-PCS often misdetects the intra-sequence interference (IEI), resulting in a performance gap. To address this shortcoming, we propose two performance-enhanced detectors. The first one combines increase detection algorithm (IDA) and RS-PCS to enhance the accuracy of IEI detection. The second one is the joint maximum-likelihood detection (joint ML) that has the optimal performance in terms of bit error rate (BER), which is derived theoretically. Simulation results verify their better performance than existing RS-PCS schemes.

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基于概率星座整形的分子通信：最佳检测和性能分析

事实证明，概率星座整形（PCS）对分子通信非常有效。里德-所罗门编码 PCS（RS-PCS）是最近提出的一种很有前景的实现方法，它通过并行发射机结构将 PCS 和信道编码结合在一起。然而，目前为 RS-PCS 设计的接收器经常错误地检测序列内干扰 (IEI)，导致性能差距。针对这一缺陷，我们提出了两种性能增强型检测器。第一种是将增加检测算法 (IDA) 和 RS-PCS 结合起来，以提高 IEI 检测的准确性。第二种是联合最大似然检测（联合 ML），它在误码率（BER）方面具有最佳性能，这是从理论上推导出来的。仿真结果验证了其性能优于现有的 RS-PCS 方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.