AH-MPPM a new modulation scheme for free space optical communication systems

Author

Sat, Mehdi Rouis ; Sali, Ahmed R Bor ; Chikh-Bled, M.E.

Author_Institution

Dept. Electron., Abou Bekr Belkaid Univ., Tlemcen, Algeria

fYear

2011

fDate

19-21 Dec. 2011

Firstpage

106

Lastpage

110

Abstract

Multi-Pulse pulse position modulation (MPPM) has proved to be more bandwidth efficient than other modulation schemes such as Pulse Position Modulation (PPM), however MPPM is steel not a strong candidate when the bandwidth efficiency is taken into account, and steel suffers from the clock recovery problem. In this paper we propose Anisochronous Harmonic Multi-Pulse Pulse Position Modulation (AH-MPPM) as a new modified digital pulse modulation, presented on the basis of Multi-pulse Pulse Position Modulation (MPPM), and on Pulse Amplitude Modulation (PAM). This method is presented to achieve the best compromise between complexity, data rate, power efficiency, spectral efficiency and symbol synchronization possibility. We present the expressions of spectral efficiency, power requirements, and the data rate improvement normalized to PPM, and we present comparison results to MPPM and conventional Dual Amplitude MPPM.

Keywords

optical communication; optical modulation; AH-MPPM; anisochronous harmonic multipulse pulse position modulation; complexity; data rate; free space optical communication systems; modulation scheme; power efficiency; symbol synchronization possibility; Delta modulation; AH-MPPM; H-MPPM; MPPM; Optical wireless communications; PAM; performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

High Capacity Optical Networks and Enabling Technologies (HONET), 2011

Conference_Location

Riyadh

Print_ISBN

978-1-4577-1170-1

Type

conf

DOI

10.1109/HONET.2011.6149798

Filename

6149798