Optimal Beamforming for Hybrid Satellite Terrestrial Networks With Nonlinear PA and Imperfect CSIT

被引：18

作者：

Liu, Chengxiao ^{[1
]}

Feng, Wei ^{[1
]}

Chen, Yunfei ^{[2
]}

Wang, Cheng-Xiang ^{[3
,4
]}

Ge, Ning ^{[1
]}

机构：

[1] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China

[2] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England

[3] Southeast Univ, Sch Informat Sci & Engn, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

[4] Purple Mt Labs, Nanjing 211111, Peoples R China

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 03期

基金：

北京市自然科学基金; 中国国家自然科学基金; 欧盟地平线“2020”;

关键词：

Array signal processing; Satellites; Optimization; Satellite broadcasting; Interference; Satellite antennas; Channel state information; Beamforming; hybrid satellite-terrestrial network; large-scale channel state information; nonlinear power amplifier; spectrum sharing; PREDISTORTION;

D O I：

10.1109/LWC.2019.2952124

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In hybrid satellite-terrestrial networks (HSTNs), spectrum sharing is crucial to alleviate the "spectrum scarcity" problem. Therein, the transmit beams should be carefully designed to mitigate the inter-satellite-terrestrial interference. Different from previous studies, this letter considers the impact of both nonlinear power amplifier (PA) and large-scale channel state information at the transmitter (CSIT) on beamforming. These phenomena are usually inevitable in a practical HSTN. Based on the Saleh model of PA nonlinearity and the large-scale multi-beam satellite channel parameters, we formulate a beamforming optimization problem to maximize the achievable rate of the satellite system while ensuring that the inter-satellite-terrestrial interference is below a given threshold. The optimal amplitude and phase of desired beams are derived in a decoupled manner. Simulation results demonstrate the superiority of the proposed beamforming scheme.

引用

页码：276 / 280

页数：5

共 18 条

[1] Joint precoding and predistortion techniques for satellite telecommunication systems [J].

Alvarez-Díaz, M ;

Mosquera, C ;

Neri, M ;

Corazza, GE .

2nd International Symposium on Wireless Communications Systems 2005 (ISWCS 2005), 2005, :688-692

[2] Outage Performance of Cognitive Hybrid Satellite-Terrestrial Networks With Interference Constraint [J].

An, Kang ;

Lin, Min ;

Zhu, Wei-Ping ;

Huang, Yongming ;

Zheng, Gan .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2016, 65 (11) :9397-9404

[3] Hybrid Analog-Digital Transmit Beamforming for Spectrum Sharing Backhaul Networks [J].

Angel Vazquez, Miguel ;

Blanco, Luis ;

Perez-Neira, Ana I. .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2018, 66 (09) :2273-2285

[4]

[Anonymous], 2014, Convex Optimiza- tion

[5] Channel Estimation and Detection in Hybrid Satellite-Terrestrial Communication Systems [J].

Arti, M. K. .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2016, 65 (07) :5764-5771

[6] Spectrum Sharing for Coexistence of Fixed Satellite Services and Frequency Hopping Tactical Data Link [J].

Baek, Hoki ;

Lim, Jaesung .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2016, 34 (10) :2642-2649

[7] Ergodic Capacity of Multiuser Hybrid Satellite-Terrestrial Fixed-Gain AF Relay Networks With CCI and Outdated CSI [J].

Bankey, Vinay ;

Upadhyay, Prabhat Kumar .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2018, 67 (05) :4666-4671

[8] Adaptive Digital Signal Predistortion for Nonlinear Communication Systems Using Successive Methods [J].

Beidas, Bassel F. .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2016, 64 (05) :2166-2175

[9]

Feng W., 2019, ARXIV190403979

[10]

Feng YC, 2017, PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON GLOBALIZATION: CHALLENGES FOR TRANSLATORS AND INTERPRETERS, VOL. II, P1

← 1 2 →