Power allocation schemes in MIMO and OFDM systems

Author

Divanovic, Soko ; Urosevic, Ugljesa ; Veljovic, Zoran

Author_Institution

Fac. of Electr. Eng., Univ. of Montenegro, Podgorica, Montenegro

fYear

2013

fDate

26-28 Nov. 2013

Firstpage

62

Lastpage

65

Abstract

In a multicarrier system with transmission over multiple sub-channels (OFDM) or multiple antennas (MIMO) power allocation is usually done uniformly. However, if channel state information is known, then with effective power allocation significant improvement in system performances can be achieved. Transmit power allocation may improve system performance in terms of overall capacity increase or bit error rate decrease. To enable easier overview of performance improvement that can be achieved with power allocation techniques, in this paper a brief overview and systematization of methods for power allocation is given.

Keywords

MIMO communication; OFDM modulation; antenna arrays; error statistics; resource allocation; telecommunication channels; MIMO systems; OFDM systems; bit error rate; channel state information; multicarrier system; multiple antennas; multiple subchannels; performance improvement; power allocation schemes; power allocation techniques; systematization; MIMO; OFDM; BER; alokacija snage; kapacitet;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2013 21st

Conference_Location

Belgrade

Print_ISBN

978-1-4799-1419-7

Type

conf

DOI

10.1109/TELFOR.2013.6716172

Filename

6716172