Hybrid Beamforming in 5G mmWave Networks: A Full-Stack Perspective

被引：14
作者：
Gomez-Cuba, Felipe [1 ]
Zugno, Tommaso [2 ]
Kim, Junseok [3 ]
Polese, Michele [4 ]
Bahk, Saewoong [5 ,6 ]
Zorzi, Michele [2 ]
机构：
[1] Univ Vigo, AtlanTTic, Vigo 36310, Spain
[2] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy
[3] Samsung Elect, Syst LSI, Hwaseong Si 18448, Gyeonggi Do, South Korea
[4] Northeastern Univ, Inst Wireless Internet Things, Boston, MA 02115 USA
[5] Seoul Natl Univ, Dept ECE, Seoul 08826, South Korea
[6] Seoul Natl Univ, INMC, Seoul 08826, South Korea
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2022年 / 21卷 / 02期
基金：
欧盟地平线“2020”;
关键词：
3GPP; Protocols; 5G mobile communication; OFDM; Array signal processing; Antenna arrays; Physical layer; mmWave; hybrid beamforming; 3GPP NR; end-to-end; simulation; TO-END SIMULATION; MIMO; SYSTEMS; TCP;
D O I：
10.1109/TWC.2021.3103575
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper studies the cross-layer challenges and performance of Hybrid Beamforming (HBF) and Multi-User Multiple-Input Multiple-Output (MU-MIMO) in 5G millimeter wave (mmWave) cellular networks with full-stack TCP/IP traffic and MAC scheduling. While previous research on HBF and MU-MIMO has focused on link-level analysis of full-buffer transmissions, this work reveals the interplay between HBF techniques and the higher layers of the protocol stack. To this aim, prior work on the full-stack evaluation of mmWave cellular networks has been extended by including the modeling of MU-MIMO and HBF. Our results reveal novel relations between the networking layers and the HBF MU-MIMO performance at the physical layer. Particularly, throughput can be increased in 5G networks by means of Space Division Multiple Access (SDMA). However, in order to achieve such benefits it is necessary to take into account certain trade-offs and the implementation complexity of a full-stack HBF solution.
引用
收藏
页码：1288 / 1303
页数：16
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