Scalable Limited Channel Feedback for Downlink Coordinated Multi-Cell Transmission

Author

Liu, Hao ; Song, Yang ; Li, Dong ; Cai, Liyu ; Yang, Hongwei ; Lu, Di ; Wu, Keying

Author_Institution

Dept. of Res. & Innovation, Alcatel-Lucent Shanghai Bell, Shanghai, China

fYear

2011

fDate

15-18 May 2011

Firstpage

1

Lastpage

5

Abstract

It is well known that coordinated multi-cell transmission in downlink (DL) is a promising technique to significantly increase the system throughput and cell-edge user throughput. In this paper, we propose a scalable two-stage channel feedback mechanism not only to support downlink single-cell multi-user MIMO (MU-MIMO), but also to efficiently support multi-cell coordination. This scheme yields remarkable system performance improvements with considerable uplink (UL) feedback overhead, and also has good backward compatibility for single-cell transmission scheme.

Keywords

MIMO communication; cellular radio; radio links; wireless channels; MU-MIMO; cell-edge user throughput; downlink coordinated multicell transmission; downlink single-cell MIMO; multicell coordination; scalable limited channel feedback; scalable two-stage channel feedback mechanism; single-cell transmission scheme; uplink feedback overhead; Computer architecture; Downlink; Joints; MIMO; Microprocessors; Quantization; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4244-8332-7

Type

conf

DOI

10.1109/VETECS.2011.5956467

Filename

5956467