کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7930537 1512589 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybrid polarization-division-multiplexed quadrature phase-shift keying and multi-pulse pulse position modulation for free space optical communication
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Hybrid polarization-division-multiplexed quadrature phase-shift keying and multi-pulse pulse position modulation for free space optical communication
چکیده انگلیسی
A new hybrid modulation scheme (PDM-QPSK-MPPM) for free space optical (FSO) communication is proposed in this paper, which is based on the combination of polarization-division-multiplexed quadrature phase-shift keying (PDM-QPSK) and multi-pulse pulse position modulation (MPPM). We describe the transmitter and receiver block diagram and the decoding scheme of proposed scheme, and derive the formulary expressions for symbol-error rate (SER) and upper bound of bit-error rate (BER) in Gamma-Gamma turbulence channel. Performance evaluations and comparisons are implemented through detailed analysis. The numerical results indicate that, under turbulence channel with average power constraint, the proposed hybrid PDM-QPSK-MPPM always offer better BER performance and SER performance than ordinary BPSK and MPPM. In addition, the proposed scheme offers higher bandwidth-utilization efficiency than conventional modulation formats.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 334, 1 January 2015, Pages 63-73
نویسندگان
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