K-Over-L Multidimensional Position Modulation
K-Over-L Multidimensional Position Modulation
复制标题
K-Over-L 多维位置调制
DOI：
10.1109/jlt.2014.2322117
复制
发表时间：
2014
影响因子：
4.7
通讯作者：
M. Karlsson
中科院分区：
文献类型：
--
作者：
T. Eriksson;P. Johannisson;B. Puttnam;E. Agrell;P. Andrekson;M. Karlsson
分析了相干通信系统中基于多脉冲/帧多维位置调制(K-over-L-MDPM)与正交相移键控(QPSK)、偏振复用QPSK(PM-QPSK)和偏振切换QPSK(PS-QPSK)相结合的一系列调制格式。MDPM是脉冲位置调制的推广，其中不同的脉冲时隙可以通过时隙、偏振状态、频率、多模光纤的模式、多芯光纤中的纤芯或它们的组合来实现。我们证明了通过将K-over-L-MDPM与QPSK结合使用，可以同时提高QPSK的频谱效率和渐近功率效率。我们还证明了K元逆MDPM(KiMDPM-QPSK)是K-over-(K-1)-MDPM的特例，并证明了4iMDPM-QPSK在保持频谱效率的情况下比QPSK的渐近功率效率提高了1.25dB.
We analyze a family of modulation formats based on multidimensional position modulation (MDPM) with multiple pulses per frame (K-over-L-MDPM) in combination with quadrature phase shift keying (QPSK), polarization multiplexed QPSK (PM-QPSK) and polarization-switched QPSK (PS-QPSK) for coherent communication systems. MDPM is a generalization of pulse position modulation where different pulse slots can be realized by time slots, polarization states, frequencies, modes of multimode fibers, cores in multicore fibers or a combination of these. We show that by using K-over-L-MDPM with QPSK, it is possible to simultaneously increase both the spectral efficiency and the asymptotic power efficiency over QPSK. We also identify K-ary inverse-MDPM (KiMDPM-QPSK) as the special case of K-over-(K - 1)-MDPM and show that 4iMDPM-QPSK has a 1.25 dB increased asymptotic power efficiency over QPSK with a maintained spectral efficiency.