Dual-Polarized Massive MIMO Systems Under Multi-Cell Pilot Contamination

IEEE Access

卷:4

Xiaodai Dong¹  Wei Xu²  Xiaohu You²  Xian Wu²  Hua Zhang² 

[1] Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada;

[2] National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;

关键词: Massive MIMO;    dual-polarized antenna;    multi-cell;    pilot contamination;    channel capacity;   

DOI  :  10.1109/ACCESS.2016.2612248

来源: DOAJ

【 摘 要 】

This paper considers a multi-cell network with base stations (BSs) equipped with large dual-polarized antenna arrays. We derive closed-form expressions of network performance in terms of user signal-to-interference-and-noise ratio both with perfect channel state information and in the presence of pilot contamination. In general, a dual-polarized system enjoys the reduction in pilot contamination and multiuser interference due to orthogonal polarizations, while the available BS array dimension is reduced in each polarized direction compared with a monopole antenna setup. The derived results, however, reveal that the performance of a dual polarization system can be optimized by properly setting receive antenna polarizations, and fortunately, the optimal performance behaves identically to that of a monopole-antenna one in massive MIMO. We finally verify the observations by numerical simulations.

【 授权许可】

Unknown