NDLI: Multi-Cell Downlink Joint Transmission with 3D Beamforming

Content Provider	IEEE Xplore Digital Library
Author	Hong Zhu Ying Wang Cong Shi Weidong Zhang
Copyright Year	2013
Description	Author affiliation: Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China (Hong Zhu; Ying Wang; Cong Shi; Weidong Zhang)
Abstract	This paper proposes a scheme combining multi-cell downlink joint transmission(JT) with 3- Dimensional(3D) beamforming. The proposed scheme is based on the following two observations: 1) The performance of multi-cell joint transmission is highly dependent on the received signal strength from the coordinated cells, 2) Interference may become more severe at the cell boundary due to the extremely flat beams serving the cell edge users with 3D beamforming. In the proposed scheme, users at the cell boundary are served with JT and 3D beamforming simultaneously, and those at the cell center are served with 3D beamforming. Simulation results based on LTE-Advanced systems show that significant gains can be achieved by the scheme, with about 14% gain on cell average spectral efficiency and about 58% gain on edge user spectral efficiency compared to traditional single cell transmission with 2-Dimensional(2D) beamforming.
Starting Page	1
Ending Page	5
File Size	663648
Page Count	5
File Format	PDF
ISBN	9781467361873
ISSN	10903038
DOI	10.1109/VTCFall.2013.6692292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Three-dimensional displays Joints Interference Antennas Throughput Base stations
Content Type	Text
Resource Type	Article

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