A Novel Transceiver and an Asynchronous Mode for the Hybrid Multiple-Access HetNet Architecture

被引：4

作者：

Ghosh, Joydev ^{[1
]}

Vargas-Rosales, Cesar ^{[2
]}

Mendes, Luciano Leonel ^{[3
]}

Ra, In-Ho ^{[4
]}

Nhan Vo, Van ^{[5
,6
]}

Aimtongkham, Phet ^{[1
]}

So-In, Chakchai ^{[1
]}

机构：

[1] Khon Kaen Univ, Coll Comp, Dept Comp Sci, Appl Network Technol, Khon Kaen 40002, Thailand

[2] Tecnol Monterrey, Sch Engn & Sci, Monterrey 64849, Mexico

[3] Natl Telecommun Inst INATEL, BR-37540000 Santa Rita Do Sapucai, Brazil

[4] Kunsan Natl Univ, Sch Comp Informat & Commun Engn, Gunsan 54150, South Korea

[5] Duy Tan Univ, Fac Informat Technol, Da Nang 550000, Vietnam

[6] Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam

来源：

IEEE ACCESS | 2023年 / 11卷

关键词：

Gigantic-multiple-input multiple-output (gMIMO); hybrid multiple access (HMA); asynchronous transmission; quadrature amplitude modulation (QAM); iterative interference cancellation (IIC); spectral efficiency (SE); energy efficiency (EE); sixth-generation (6G); RESOURCE-ALLOCATION; CHANNEL ESTIMATION; SYSTEMS; NETWORKS; DESIGN; TRANSMISSION; RECEIVERS; POWER;

D O I：

10.1109/ACCESS.2023.3337536

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Multiuser gigantic-multiple-input multiple-output (MU-gMIMO) and nonorthogonal multiple access (NOMA) are jointly seen as important enabling technologies for sixth generation (6G) networks. They have many benefits, such as spatial multiplexing, spatial diversity, massive connectivity, and spectral efficiency (SE). However, gMIMO-NOMA suffers from many inherent challenges. In this paper, we propose an MU-gMIMO-hybrid multiple-access (HMA) heterogeneous network architecture to address the 'nearly same channel gain' issue. Then, an iterative minimal mean squared error (IMMSE) scheme is applied along with quadrature amplitude modulation (QAM) for maximal ratio transmission in the proposed transceiver design to address the 'residual error' caused by imperfect successive interference cancellation (ISIC). Finally, to assess the performance of the proposed architecture for the 'time offsets' issue, we investigate the asynchronous mode with an MMSE detector matrix following imperfect channel state information (ICSI) to provide a new analysis for HMA transmission and formulate an optimization problem for energy efficiency (EE).

引用

页码：135609 / 135625

页数：17