Pilot Reuse with a Large Number of Antennas: Performance Analysis and Pilot Contamination Reduction

Zhao, Junhui1,2; Ni, Shanjin1; Gong, Yi3; Gao, Feifei4

10.1109/WCSP.2017.8170943

2017

2325-3746

2017 9TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP)

2017-January

1-6

Nanjing, China

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

The performance of massive multiple-input multiple-output (MIMO) systems is heavily affected by pilot contamination. This paper considers the problem of pilot contamination in massive MIMO systems, and investigates the normalized mean square error (NMSE) of the minimum mean square error (MMSE) channel estimation algorithm in the presence of pilot contamination. An effective uplink training strategy with silent cell is proposed by carefully designing a sophisticated uplink training. Unlike many existing pilot contamination reduction schemes, the proposed scheme does not rely on the assumption of each base station needs to know the second-order statistics of either desired channels or interfering user channels. Simulation results are provided to confirm the excellent performance of this strategy.

Pilot contamination channel estimation pilot reuse massive MIMO

其他

英语

CPCI-S ; EI

Ministry of Science and Technology of the People's Republic of China[2016ZX03001014-006]

Computer Science ; Engineering ; Telecommunications

Computer Science, Hardware & Architecture ; Engineering, Electrical & Electronic ; Telecommunications

WOS:000426972200068

20181905142763

Antennas ; Contamination ; Mean square error ; MIMO systems ; Signal processing ; Wireless telecommunication systems

Information Theory and Signal Processing:716.1 ; Mathematical Statistics:922.2

Web of Science

1.Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
2.East China Jiaotong Univ, Sch Informat Engn, Nanchang 330013, Jiangxi, Peoples R China
3.South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.TNList, Beijing 100062, Peoples R China

Zhao, Junhui,Ni, Shanjin,Gong, Yi,et al. Pilot Reuse with a Large Number of Antennas: Performance Analysis and Pilot Contamination Reduction[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:1-6.