Test-Bed Implementation of Iterative Interference Alignment and Power Control for Wireless MIMO Interference Networks
2014 (English)In: 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), IEEE , 2014, 239-243 p.Conference paper (Refereed)
This paper presents for the first time the testbed implementation of an iterative interference alignment and power control algorithm for downlink transmission in a multiple-input multiple-output (MIMO) cellular network. The network is composed of three cells where within each cell one base station (BS) communicates with one mobile station (MS). Each terminal is equipped with two antennas. All the BSs transmit at the same time and the same frequency band. Transmitter beamforming vectors and receiver filtering vectors are computed according to the interference alignment concept, and power control is performed to guarantee successful communication of each BS-MS pair at a desired fixed rate. The indoor measurements performed on an universal software radio peripheral (USRP) based test-bed, show that the power can be reduced by at least 4 dB, 90% of the time, while at the same time reducing the bit-error-rate (BER).
Place, publisher, year, edition, pages
IEEE , 2014. 239-243 p.
, IEEE International Workshop on Signal Processing Advances in Wireless Communications, ISSN 2325-3789
Interference alignment, power control, test-bed implementation, MIMO, 5G
Telecommunications Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-160802DOI: 10.1109/SPAWC.2014.6941514ISI: 000348859000049ISBN: 978-1-4799-4903-8OAI: oai:DiVA.org:kth-160802DiVA: diva2:791271
IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), JUN 22-25, 2014, Toronto, Canada
QC 201502272015-02-272015-02-272015-02-27Bibliographically approved