Impact of Channel Estimation Error on LTE-Advanced Uplink Using CoMP Joint Reception in a Heterogeneous Network

Author

Takeda, Kenji ; Yuda, Yasuaki ; Hoshino, Masayuki ; Iwai, Toshiki ; Matsumoto, Akiyoshi ; Nishio, Akihiko

Author_Institution

Panasonic Corp., Yokohama, Japan

fYear

2013

fDate

2-5 June 2013

Firstpage

1

Lastpage

5

Abstract

In this paper, we investigate the impact of channel estimation error on LTE-Advanced (LTE-A) uplink using coordinated multipoint (CoMP) joint reception (JR) in a heterogeneous network (HetNet). The uplink CoMP capacity in bits/sec/Hz/m2 in principle increases in proportional to the number/density of CoMP reception points (RPs). However, the data capacity is limited due to reference signal (RS) capacity for channel estimation in practical situations. In this paper, we model channel estimation error of LTE-A uplink assuming the use of de-modulation RS (DMRS) introduced in LTE-A with taking into account the property of DMRS. System-level simulation is carried out to evaluate the impact of channel estimation error on CoMP operation.

Keywords

Long Term Evolution; channel estimation; radio links; CoMP joint reception; JR; LTE advanced uplink; LTE-A uplink; RS capacity; channel estimation error; data capacity; heterogeneous network; joint reception; reference signal; Bandwidth; Channel estimation; Joints; MIMO; Multiplexing; Throughput; Uplink;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th

Conference_Location

Dresden

ISSN

1550-2252

Type

conf

DOI

10.1109/VTCSpring.2013.6692586

Filename

6692586