Codebook based self-adaptive beamforming for 5G rail communications

Xiaoxi Yu, Simon M.D. Armour, Changjun Yu

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


A codebook based adaptive beamforming switching scheme and a throughput based selective algorithm are proposed for 5G rail communications systems. The goal is to enhance the transmission capacity within the cell range of a trackside basestation. The main idea is to implement a Dual-Transmitter Dual-Receiver (DTDR) model transmitted with dual-beam to achieve higher capacity as the train is approaching the basestation, and switch to the Single-Transmitter Single-Receiver (STSR) model using single beam when the train is far away from the basestation to avoid the degradation of capacity caused by interference. This switching scheme benefits from space multiplexing using dual-beam transmission whilst avoiding inter-beam interference by switching to the single-beam transmission. Based on this new scheme, a novel selective algorithm is proposed to further enhance the system performance. The numerical results show that, for high-speed railway communications under parameters and environment given in this paper, the switching scheme achieves 52% higher capacity than using the STSR model or 35% higher than using the DTDR model, where codebook beamforming technique is adopted at the transmitter, and 36% higher capacity of the system is realized by using the selective algorithm compared with the original one.

Original languageEnglish
Title of host publication2018 14th IEEE International Conference on Signal Processing (ICSP 2018)
Subtitle of host publicationProceedings of a meeting held 12-16 August 2018, Beijing, China.
EditorsZhao Yao, An Gaoyun, Ruan Qiuqi, Yuan Baozong
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781538646731
ISBN (Print)9781538646748
Publication statusPublished - 25 Feb 2019
Event14th IEEE International Conference on Signal Processing, ICSP 2018 - Beijing, China
Duration: 12 Aug 201816 Aug 2018

Publication series

NameIEEE International Conference on Signal Processing (ICSP)
ISSN (Print)2164-5221
ISSN (Electronic)2164-5221


Conference14th IEEE International Conference on Signal Processing, ICSP 2018


  • 5G rail communication
  • Codebook beamforming
  • Selective algorithm
  • Space multiplexing
  • Switching scheme


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