Title :
Improved power allocation schemes based on STBC-OFDM in frequency selective fading channel
Author :
Zheng, Kan ; Huang, Lin ; Wang, Wenbo
Author_Institution :
Center for Wireless Commun., Beijing Univ. of Posts & Telecommun., China
Abstract :
This paper presents a space-time block coded orthogonal frequency division multiplexing (STBC-OFDM) system over frequency selective channel. System performance will be better and capacity be increased by performing improved power allocation schemes across space or/and frequency in such STBC-OFDM system. So different schemes are proposed then their signal-to-noise ratios (SNR) and capacity are analyzed. Simulation results are also given finally.
Keywords :
OFDM modulation; block codes; channel capacity; fading channels; modulation coding; power control; space-time codes; telecommunication control; OFDM system; channel capacity; fading channel; frequency selective channel; orthogonal frequency division multiplexing; power allocation schemes; signal-to-noise ratio; space-time block coding; system performance; Fading; Multimedia communication; Multimedia systems; OFDM; Radio spectrum management; Radio transmitters; Receiving antennas; Signal analysis; Signal to noise ratio; Wireless communication;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209708
