An Efficient Signaling for Multi-mode Transmission in Multi-user MIMO
Paper i proceeding, 2010

In this paper the downlink of a multi-user MIMO (MUMIMO) system with multi-mode transmission is considered. We propose a low-complexity algorithm for selecting users and the corresponding number of data streams to each user, denoted as user transmission mode (UTM). The selection is only based on the average received signal-to-noise ratio (SNR) from the base station (BS) for each user. This reduces the overall amount of feedback for scheduling, as opposed to techniques that assume perfect instantaneous channel state information (CSI) from all users. Analytical average throughput approximations are derived for each user at different UTMs. Simulation results demonstrate that the proposed algorithm provides performance close to dirty paper coding (DPC) with considerably reduced feedback.


Nima Seifi

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

Tony Ottosson Gadd

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

Mats Viberg

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik

Mikael Coldrey

Ericsson AB

Andreas Wolfgang

Qamcom Research & Technology

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

15206149 (ISSN)

3402-3405 5495991
978-142444296-6 (ISBN)








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