Improved power allocation schemes based on STBC-OFDM in frequency selective fading channel

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.