Projection-based power allocation scheme for joint transmission system

Author

Yan, Chunyan ; Deng, Ke ; Wang, Hui-Ming

Author_Institution

Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2011

fDate

9-11 Nov. 2011

Firstpage

1

Lastpage

5

Abstract

Coordinated Multi-Point (CoMP) transmission or reception is an efficient way to reduce inter-cell interference, improve the spectrum efficiency and coverage in LTE-Advanced systems. Compared with other CoMP technologies, Joint Transmission (JT), which carries out precoding based on the channel information, can achieve better system performance gain. In this paper, a scheme termed the projection-based power allocation is proposed, which combines the joint transmission in the space domain with the power allocation in the frequency domain. The simulation results for TD-LTE-Advanced systems show that the scheme outperforms traditional equal power allocation and power allocation without projection in bit error rate (BER) performance subject to constraints on total power obviously.

Keywords

Long Term Evolution; interference suppression; precoding; radiofrequency interference; CoMP reception; TD-LTE-Advanced systems; channel information; coordinated multipoint transmission; frequency domain; intercell interference reduction; joint transmission system; precoding; projection-based power allocation scheme; space domain; spectrum efficiency; system performance gain; Bit error rate; Downlink; Frequency domain analysis; Interference; Joints; OFDM; Resource management; BER performance; CoMP; joint transmission; power allocation; projection;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Signal Processing (WCSP), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4577-1009-4

Electronic_ISBN

978-1-4577-1008-7

Type

conf

DOI

10.1109/WCSP.2011.6096719

Filename

6096719