Radiation Efficiency Aware High-Mobility Massive MIMO with Antenna Selection

Autor:	Hu, Zhinan, Zhang, Weile
Rok vydání:	2019
Předmět:	Electrical Engineering and Systems Science - Signal Processing
Druh dokumentu:	Working Paper
Popis:	High-mobility wireless communications have received a lot of attentions in the past few years. In this paper, we consider angle-domain Doppler shifts compensation scheme to reduce the channel time variation for the high-mobility uplink from a high-speed terminal (HST) to a base station (BS). We propose to minimize Doppler spread by antenna weighting under the constraint of maintaining radiation efficiency. The sequential parametric convex approximation (SPCA) algorithm is exploited to solve the above non-convex problem. Moreover, in order to save the RF chains, we further exploit the idea of antenna selection for high-mobility wireless communications. Simulations verify the effectiveness of the proposed studies. Comment: 4 pages, 4 figures, correspondence
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1902.08072 Zobrazit plný text záznamu View this record from Arxiv