K-Over-L Multidimensional Position Modulation
Journal article, 2014

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.

multicore fiber

Digital modulation

optical fiber communication

multidimensional position modulation (MDPM)

power efficiency

pulse position modulation (PPM)

quadrature phase shift keying (QPSK)

spectral efficiency

polarization-switched quadrature phase shift keying (PS-QPSK)

multi-pulse position modulation (MPPM)

sensitivity

Author

Tobias Eriksson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Pontus Johannisson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Benjamin Puttnam

Japan National Institute of Information and Communications Technology

Erik Agrell

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Journal of Lightwave Technology

0733-8724 (ISSN)

Vol. 32 12 2254-2262 6819002

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/jlt.2014.2322117

More information

Latest update

3/29/2018