Title :
Multi-carrier coded 16QAM system in land mobile radio communications
Author :
Omori, Youko ; Sasaoka, Hideichi
Author_Institution :
Chuo Univ., Tokyo, Japan
Abstract :
A multicarrier coded 16 quadrature amplitude modulation (16QAM) system is proposed to achieve high-quality and high bit rate transmission with high spectral efficiency in land mobile radio communications. The system employs a multicarrier transmission scheme to provide immunity against multipath fading distortion. The proposed system also employs pilot symbol aided 16QAM to increase spectral efficiency and a combination of forward error correction (FEC) and space diversity to improve the bit error ratio (BER) performance. Computer simulation shows that a BER of less than 10-4 is obtained over channels with severe frequency-selective fading with RMS delay spreads ⩽7.3 μsec. It is shown that the proposed system can achieve high-quality transmission with high spectral efficiency
Keywords :
delays; diversity reception; error correction codes; error statistics; fading; forward error correction; land mobile radio; multipath channels; quadrature amplitude modulation; radio spectrum management; 16 quadrature amplitude modulation; bit error ratio; delay spreads; forward error correction; frequency-selective fading; land mobile radio communications; multicarrier transmission scheme; multipath fading distortion; pilot symbol aided 16QAM; space diversity; spectral efficiency; Bit error rate; Bit rate; Computer errors; Computer simulation; Error correction; Fading; Forward error correction; Land mobile radio; Mobile communication; Quadrature amplitude modulation;
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
Print_ISBN :
0-7803-1267-8
DOI :
10.1109/VETEC.1993.507004
