DocumentCode :
112914
Title :
Maximum Achievable Constrained Power Efficiencies of MPPM- 
QAM Techniques
Author :
Shalaby, Hossam M. H.
Author_Institution :
Dept. of Electron. & Commun. Eng., Egypt-Japan Univ. of Sci. & Technol., Alexandria, Egypt
Volume :
27
Issue :
12
fYear :
2015
fDate :
June15, 15 2015
Firstpage :
1265
Lastpage :
1268
Abstract :
The maximum achievable power efficiency of a multipulse pulse-position modulation-L-ary quadrature-amplitude modulation (MPPM-LQAM) technique under a constraint on its spectral efficiency is obtained. Variations to this technique that include polarization multiplexing and switching are considered as well. A simple characterization to the maximum achievable power efficiency is derived under the above constraint. Our results are compared with that of traditional QAM techniques under same constraints. The results reveal that at spectral efficiency constraints of 1.5, 2.5, and 3.5 bit/sym/pol, the power efficiency of MPPM-LQAM technique is better than that of traditional QAM technique by ~3.9, 2.2, and 1.4 dB, respectively.
Keywords :
pulse position modulation; quadrature amplitude modulation; MPPM-LQAM technique; maximum achievable constrained power efficiency; multipulse pulse-position modulation-L-ary quadrature amplitude modulation; polarization multiplexing; spectral efficiency; Multiplexing; Optical modulation; Optical receivers; Optical sensors; Phase shift keying; Quadrature amplitude modulation; Multipulse pulse-position modulation; polarization multiplexing; polarization switching; power efficiency; quadrature-amplitude modulation; spectral efficiency;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2015.2416205
Filename :
7067350
Link To Document :
