Combating Massive MIMO Channel Aging by Orthogonal Precoding

被引:0
作者
Zemen, Thomas [1 ]
Loeschenbrand, David [1 ]
机构
[1] AIT Austrian Inst Technol, Ctr Digital Safety & Secur, Secur & Commun Technol, Vienna, Austria
来源
2019 IEEE 2ND 5G WORLD FORUM (5GWF) | 2019年
关键词
D O I
10.1109/5gwf.2019.8911722
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
In this work we investigate ultra-reliable low-latency massive multiple-input multiple-output (MIMO) communication links in vehicular scenarios, where coherence between uplink and downlink cannot be assumed. In such scenarios the channel state information obtained in the uplink will be outdated for the following downlink phase. To compensate for this channel aging we will utilize orthogonal precoding with two-dimensional precoding sequences in the time-frequency domain within an orthogonal frequency division multiplexing system. The channel hardening effect of massive MIMO transmission decreases, due to channel aging, with increasing frame duration and increasing velocity, while the channel hardening effect of orthogonal precoding (OP) increases with increasing time- and frequency-selectivity of the wireless communication channel. By combining massive MIMO and OP we can show by numeric link level simulation that the performance with outdated channel state information in terms of bit-error rate versus signal-to-noise ratio is improved by two orders of magnitude.
引用
收藏
页码:97 / 101
页数:5
相关论文
共 14 条
[1]   OPTIMAL DECODING OF LINEAR CODES FOR MINIMIZING SYMBOL ERROR RATE [J].
BAHL, LR ;
COCKE, J ;
JELINEK, F ;
RAVIV, J .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1974, 20 (02) :284-287
[2]   A STATISTICAL THEORY OF MOBILE-RADIO RECEPTION [J].
CLARKE, RH .
BELL SYSTEM TECHNICAL JOURNAL, 1968, 47 (06) :957-+
[3]   Massive MIMO Linear Precoding: A Survey [J].
Fatema, Nusrat ;
Hua, Guang ;
Xiang, Yong ;
Peng, Dezhong ;
Natgunanathan, Iynkaran .
IEEE SYSTEMS JOURNAL, 2018, 12 (04) :3920-3931
[4]  
Gunnarsson S., 2018, 19TH IEEE INTERNATIO
[5]  
Hadani R, 2017, IEEE WCNC
[6]  
Hadani R., 2018, INT MICR S IMS PHIL
[7]   No Downlink Pilots Are Needed in TDD Massive MIMO [J].
Hien Quoc Ngo ;
Larsson, Erik G. .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2017, 16 (05) :2921-2935
[8]   Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas [J].
Marzetta, Thomas L. .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2010, 9 (11) :3590-3600
[9]   Deterministic Equivalent Performance Analysis of Time-Varying Massive MIMO Systems [J].
Papazafeiropoulos, Anastasios K. ;
Ratnarajah, Tharmalingam .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2015, 14 (10) :5795-5809
[10]   COMPUTATION OF FAST WALSH-FOURIER TRANSFORM [J].
SHANKS, JL .
IEEE TRANSACTIONS ON COMPUTERS, 1969, C 18 (05) :457-&