Title :
Boosting 4G Networks with Spatial Interference Management Under Feedback Constraints : A Noncooperative Downlink Transmission Scheme
Author :
Thiele, Lothar ; Kurras, Martin ; Olbrich, Markus ; Haustein, Thomas
Author_Institution :
Fraunhofer Heinrich Hertz Inst., Berlin, Germany
Abstract :
In this article, we focus on the downlink direction of cellular multiuser multiple-input, multiple-output (MIMO) systems based on orthogonal frequency division multiplex (OFDM) waveforms. Our target system is operated in the frequency division duplex (FDD) mode, while all base stations (BSs) use the same frequency spectrum for downlink transmission. State-of-the-art literature proved that the system performance is mainly limited by the existing cochannel interference (CCI). Hence, mitigating these effects would improve the achievable system throughput beyond current benchmarks of cellular systems.
Keywords :
4G mobile communication; MIMO communication; OFDM modulation; cellular radio; cochannel interference; multiuser channels; telecommunication network management; 4G networks; BS; CCI; FDD mode; MIMO systems; OFDM waveforms; base stations; cellular multiuser multiple-input multiple-output systems; cochannel interference; downlink direction; downlink transmission; feedback constraints; frequency division duplex mode; frequency spectrum; noncooperative downlink transmission scheme; orthogonal frequency division multiplex waveforms; spatial interference management; 4G mobile communication; Downlink; MIMO; OFDM; Signal to noise ratio; Throughput; Transmitting antennas;
Journal_Title :
Vehicular Technology Magazine, IEEE
DOI :
10.1109/MVT.2012.2234053
