A Novel Precoding Method for MIMO Systems with Multi-Cell Joint Transmission

Author

Lu, Di ; Li, Dong

Author_Institution

Res. & Innovation Center, Alcatel-Lucent Shanghai Bell, Shanghai, China

fYear

2010

fDate

16-19 May 2010

Firstpage

1

Lastpage

5

Abstract

In wireless cellular systems, cell edge users can only achieve far less capacity than cell center uses because of low receive signal power and strong inter-cell interference. Base station joint transmission has been proven to be an effective method to mitigate this effect. In this paper, we propose a novel precoding scheme for non-coherent joint transmission where both base stations and mobile stations are equipped with multiple antennas. The proposed scheme aims to minimize the error probability of the overall system by means of ordered QR decomposition. Simulation results show that this scheme has a significant gain over existing schemes in terms of system error rate.

Keywords

MIMO communication; adjacent channel interference; antenna arrays; cellular radio; error statistics; interference suppression; precoding; MIMO systems; QR decomposition; base station joint transmission; error probability; intercell interference; interchannel interference; low receive signal power; mobile stations; multicell joint transmission; multiple antennas; noncoherent joint transmission; precoding method; system error rate; wireless cellular systems; Base stations; Error probability; Interchannel interference; MIMO; Signal processing; Signal to noise ratio; Throughput; Transmitting antennas; Wireless cellular systems; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st

Conference_Location

Taipei

ISSN

1550-2252

Print_ISBN

978-1-4244-2518-1

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2010.5493627

Filename

5493627