Multiuser (MU) MIMO is a promising technique to significantly increase
the cell capacity in LTE systems. However, users scheduled for MU-MIMO
may still experience strong MU interference if the channel state information
at the base station is outdated or in small cells with a limited number of users
available. To tackle the MU interference, an interference-aware (IA) receiver
design is employed. Unlike the interference-unaware (IU) receiver, the IA
receiver exploits the information about the interfering data stream in the
decoding process, resulting in a significant performance gain while maintaining
a moderate complexity. We evaluate the performance of both receivers in
terms of throughput through real-time measurements carried out with the
OpenAirInterface, an open-source hardware/software development platform
created by EURECOM. The measurement results show that the IA receiver
achieves significantly higher data rates compared to the IU receiver if the user
has multiple receive antennas.
Interference-aware receiver design for MU-MIMO in LTE: Real-time performance measurements
Intel Technology Journal, Volume 18, N°1, 2014
Type:
Journal
Date:
2014-01-28
Department:
Systèmes de Communication
Eurecom Ref:
4213
Copyright:
Intel
See also:
PERMALINK : https://www.eurecom.fr/publication/4213