Title :
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
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;
Conference_Titel :
Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2518-1
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2010.5493627
