講演情報
[TuB3-3]Experimental Comparison of Pulse Position and Hamming-Coded Modulations for High Sensitivity Coherent FSO Communications
Keisuke Matsuda, 〇Shota Koshikawa, Masashi Binkai, Tsuyoshi Yoshida, Naoki Suzuki (Mitsubishi Electric Corporation, Japan)
We experimentally compared 4PPM-QPSK and Hamming-coded QPSK for coherent FSO applications with low symbol rates. Carrier recovery in 4PPM-QPSK works better because of the higher per-symbol power at pulses, leading to 1.1 dB better sensitivity.