Title :
Optimal bit and power loading for OFDM systems with average BER and total power constraints
Author :
Bedeer, Ebrahim ; Dobre, Octavia A. ; Ahmed, Mohamed Hossam ; Baddour, Kareem E.
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´s, NL, Canada
Abstract :
In this paper, a novel joint bit and power loading algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems operating in fading environments. The algorithm jointly maximizes the throughput and minimizes the transmitted power, while guaranteeing a target average bit error rate (BER) and meeting a constraint on the total transmit power. Simulation results are described that illustrate the performance of the proposed scheme and demonstrate its superiority when compared to the algorithm in [1].
Keywords :
OFDM modulation; error statistics; fading channels; OFDM system; average BER; bit error rate; fading environments; optimal bit; orthogonal frequency division multiplexing system; power loading; total power constraint; Adaptive Modulation; OFDM; bit loading; joint optimization; power loading;
Conference_Titel :
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-0920-2
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2012.6503689
