Throughput Optimization for MISO Interference Channels via Coordinated User-Specific Tilting
Artikel i vetenskaplig tidskrift, 2012

In this letter, we propose a novel framework to enhance the throughput in multiple-input single-output (MISO) mutually interfering channels via selecting the tilt angles at all base stations (BSs) in a coordinated fashion. In the proposed framework, multiple BSs adjust their tilt angles jointly to maximize the sum throughput of the scheduled users, denoted as coordinated user-specific tilting. Assuming the availability of location information of the scheduled users at all BSs, accurate analytical expression for user ergodic rate is provided, which enables a decentralized deployment of the proposed framework at each BS. Simulation results show that the proposed coordinated user-specific tilting scheme outperforms the conventional schemes employing a fixed tilt angle at each BS.

MISO

throughput

downlink

Antenna tilt

coordination

Författare

Nima Seifi

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Mikael Coldrey

Ericsson Sweden

Mats Viberg

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

IEEE Communications Letters

1089-7798 (ISSN)

Vol. 16 8 1248-1251

Ämneskategorier

Telekommunikation

DOI

10.1109/lcomm.2012.060812.120756