Title :
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
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;
Conference_Titel :
Telecommunications Forum (TELFOR), 2013 21st
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-1419-7
DOI :
10.1109/TELFOR.2013.6716172
