Improving Non-Coherent Grant-Free Massive Access With Dual-Mode Index Modulation

IF 7.1 2区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Vehicular Technology Pub Date : 2025-01-07 DOI:10.1109/TVT.2025.3526732

Shuo Li;Lixia Xiao;Guanghua Liu;Tao Jiang

引用次数: 0

Abstract

In this paper, a dual-mode index modulation aided non-coherent (DMIM-NC) scheme is proposed to improve the transmission efficiency of non-coherent grant-free systems. In DMIM-NC, a transmitted frame is partitioned into multiple groups, each of which contains multiple channel blocks. Driven by the transmitted bits, different groups employ distinct index modulation modes, choosing activated channel blocks for each group. At the receiver, a low-complexity pruning aided block coordinate descend (PBCD) detector is conceived for the proposed DMIM-NC grant-free systems. Simulation results show that DMIM-NC utilizing the designed PBCD detector is able to outperform conventional detectors in terms of transmission rate, active user detection performance, and bit recovery accuracy.

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用双模折射率调制改进非相干无授权海量接入

本文提出了一种双模折射率调制辅助非相干（DMIM-NC）方案，以提高非相干无源系统的传输效率。在DMIM-NC中，一个传输帧被分成多个组，每个组包含多个信道块。在传输比特的驱动下，不同的分组采用不同的索引调制模式，为每个分组选择激活的信道块。在接收端，设计了一种低复杂度的剪枝辅助块坐标下降（PBCD）探测器，用于DMIM-NC无准星系统。仿真结果表明，采用所设计的PBCD检测器的DMIM-NC在传输速率、主动用户检测性能和位恢复精度方面都优于传统检测器。

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 Transactions on Vehicular Technology 工程技术-电信学

CiteScore

6.00

自引率

8.80%

发文量

1245

审稿时长

6.3 months

期刊介绍： The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.