Multiservices with diverse communication requirements are the main characteristics of 5G and beyond wireless communication systems. In order to meet these diverse requirements, flexible numerology is introduced by standardization bodies. In multiservice communication, the total bandwidth is divided into a number of subbands, and for each subband, different numerologies are assigned based on their requirements. But this flexible numerology introduces inter‐subband interference due to the non‐orthogonality of different numerologies. In this paper, we propose an efficient method based on orthogonal frequency division multiplexing (OFDM) with index modulation (IM) to effectively mitigate inter‐subband interference in multiservice wireless communication systems. Index modulation is utilized to activate a fraction of subcarriers in the subband to reduce the inter‐subband interference while filtering is done on top of index modulation to further reduce the interference leakage. The proposed method has the capability to control the inter‐subband interference by varying the number of active subcarriers in the subband. Interference analysis for the proposed method is also carried out and validated through simulations. The superior performance of the proposed method is verified and compared with existing methods for multiservice wireless communication systems.

中文翻译：

---

具有多业务无线通信系统的索引调制滤波正交频分复用

具有不同通信需求的多服务是5G以及无线通信系统以外的主要特征。为了满足这些不同的要求，标准化机构引入了灵活的命理学。在多服务通信中，总带宽分为多个子带，并且对于每个子带，根据其要求分配不同的数字。但是这种灵活的数字学由于不同数字学的非正交性而引入了子带间干扰。在本文中，我们提出了一种基于正交频分复用（OFDM）和索引调制（IM）的有效方法，以有效减轻多业务无线通信系统中的子带间干扰。利用索引调制来激活子带中的一部分子载波以减少子带间干扰，同时在索引调制的基础上进行滤波以进一步减少干扰泄漏。所提出的方法具有通过改变子带中活动子载波的数量来控制子带间干扰的能力。还对仿真方法进行了干扰分析。验证了该方法的优越性能，并与多业务无线通信系统的现有方法进行了比较。所提出的方法具有通过改变子带中活动子载波的数量来控制子带间干扰的能力。还对仿真方法进行了干扰分析。验证了该方法的优越性能，并与多业务无线通信系统的现有方法进行了比较。所提出的方法具有通过改变子带中活动子载波的数量来控制子带间干扰的能力。还对仿真方法进行了干扰分析。验证了该方法的优越性能，并与多业务无线通信系统的现有方法进行了比较。