Title :
Constant-Power Adaptive Differentially Coherent Orthogonally Multiplexed Orthogonal Phase Modulation for Flat Fading Channels
Author :
Lin, Wei-Lun ; Chung, Char-Dir
Author_Institution :
Nat. Central Univ., Chungli
Abstract :
An adaptive transmission technique adopting differentially coherent orthogonally multiplexed orthogonal phase modulation (DOMOPM) signals is studied for flat Nakagami-m fading channels. By choosing spectrally efficient DOMOPM signals in accordance with channel status under an error rate constraint, constant-power adaptive DOMOPM systems are shown to significantly outperform the constant-power adaptive noncoherent frequency shift keying systems in average spectral efficiency.
Keywords :
Nakagami channels; OFDM modulation; adaptive modulation; differential phase shift keying; frequency shift keying; Nakagami-m fading channels; adaptive transmission technique; constant-power adaptive DOMOPM systems; differentially coherent orthogonally multiplexing; error rate constraint; noncoherent frequency shift keying systems; orthogonal phase modulation; spectral efficiency; Adaptive systems; Bandwidth; Bit error rate; Fading; Frequency shift keying; Land mobile radio; Mobile communication; Phase detection; Phase modulation; Power system reliability;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394764
