Title :
A Layered Space-Time-Frequency Coded OFDM for Next Generation Mobile Multimedia Systems
Author :
Hwang, Soon Up ; Seo, Jong-Soo
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul
Abstract :
We consider the architecture of layered space-time-frequency (STF) coding as a combination of orthogonal precoding and hybrid space-time block coding (STBC) for multiple-input multiple-output (MIMO) wireless multimedia systems. This approach provides both maximum transmit diversity and spatial multiplexing with moderate complexity. The proposed layered STF coded transmission scheme is practical and efficient over multipath fading channels. In addition, it is possible to obtain maximum frequency diversity gain by means of the orthogonal precoding that enhances the system performance.
Keywords :
MIMO communication; OFDM modulation; block codes; diversity reception; fading channels; mobile radio; multimedia communication; multipath channels; orthogonal codes; precoding; space-time codes; hybrid space-time block coding; layered space-time-frequency coded OFDM; maximum frequency diversity; maximum transmit diversity; multipath fading channels; multiple-input multiple-output wireless multimedia systems; next generation mobile multimedia systems; orthogonal precoding; spatial multiplexing; Block codes; Fading; Frequency diversity; Information technology; MIMO; Multimedia systems; OFDM; Performance gain; Receiving antennas; Transmitting antennas;
Conference_Titel :
Consumer Electronics, 2007. ICCE 2007. Digest of Technical Papers. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
1-4244-0763-X
Electronic_ISBN :
1-4244-0763-X
DOI :
10.1109/ICCE.2007.341565
