An Improved Precoding Algorithm for LTE-Advanced CoMP System

Qiong Wang; Zhao Xia Zhang; Jia Liu

doi:10.4028/www.scientific.net/AMM.427-429.2519

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429An Improved Precoding Algorithm for LTE-Advanced...

An Improved Precoding Algorithm for LTE-Advanced CoMP System

Abstract:

In LTE-Advanced (LTE-A) system, coordinated multi-point (CoMP) technology can reduce inter-cell interference effectively, and improve the communication quality of the cell edge users. The main purpose of this paper is to optimize the precoding algorithm and enhance the overall cell throughput in LTE-A CoMP downlink. Based on CoMP-JP, we focus on zero-forcing (ZF), block diagonalization (BD) and signal-to-leakage-plus-noise-ratio (SLNR). We propose an improved precoding algorithm (ZF-SLNR) which combines the advantages of ZF and SLNR . Simulation results suggest that ZF-SLNR algorithm provides appreciable performance improvement.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

2519-2522

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.2519

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Online since:

September 2013

Authors:

Qiong Wang*, Zhao Xia Zhang, Jia Liu

Keywords:

CoMP, Inter-Cell Interference, Joint Processing, LTE-Advanced, Precoding

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