基于SEFDM的OFDM-IM索引调制

IF 4.6 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Wireless Communications Letters Pub Date : 2023-07-26 DOI:10.1109/LWC.2023.3298918

Muhammad Sajid Sarwar;Soo Young Shin

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引用次数: 0

摘要

这封信提出频谱高效频分复用(SEFDM)结合正交频分复用(OFDM)使用指数调制(IM)。传统的OFDM-IM提供了能源效率，但由于子载波不活跃，导致数据速率(DR)损失。OFDM和SEFDM同时使用IM (OFDM- sem)，避免了频率资源失活，提高了DR。在相同的dr下，OFDM-SEM在误码率方面优于传统的OFDM-IM和SEFDM-IM，并讨论了载波间干扰对OFDM-SEM的影响以及通过脉冲整形滤波器的可能解决方案。

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SEFDM Based Index Modulation on OFDM-IM

This letter proposes spectrally efficient frequency division multiplexing (SEFDM) combined with orthogonal frequency division multiplexing (OFDM) using index modulation (IM). The conventional OFDM-IM provides energy efficiency but results in data rate (DR) loss because of inactive subcarriers. The coexistence of OFDM and SEFDM using IM (OFDM-SEM) improves the DR by avoiding frequency resource deactivation. OFDM-SEM outperforms classical OFDM-IM and SEFDM-IM in terms of bit error rate when evaluated at the same DR. The impact of intercarrier interference on OFDM-SEM and a possible solution through a pulse-shaping filter are also discussed.

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来源期刊

IEEE Wireless Communications Letters Engineering-Electrical and Electronic Engineering

CiteScore

12.30

自引率

6.30%

发文量

481

期刊介绍： IEEE Wireless Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of wireless communications. 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 wireless communication systems.