Impact of Rayleigh-Distributed PAPR on the Performance of a Pre-Clipped DCO-OFDM System
-
Jayashree Ratnam
and
Sabita Mali
Abstract
The paper investigates the impact of Rayleigh-distributed statistical behavior of peak-to-average power ratio (PAPR) associated with a pre-clipped signal on the performance metrics of a direct current-biased optical orthogonal frequency division multiplexing (DCO-OFDM) system. The analytical model for the system takes into consideration a pre-clipped and dc-shifted baseband OFDM signal, driving an optical source over its linear operating range. The model employs a bias-scaling factor, which is heuristically varied over the entire range (0 to 1) to examine improvement in overall power efficiency. Further, it utilizes the cumulative distribution function (CDF) of the pre-clipped signal to get a weighted estimate of the available signal power within the clipped PAPR. The model also takes into consideration the clipping noise effects due to limited linearity of the optical source during electrical-to-optical conversion of baseband OFDM signal. Using this model, the paper aims to arrive at a realistic estimate of the system behavior in terms of bit error rate, electrical power-efficiency and spectral efficiency. Using theoretical simulation results, for a given set of operating parameters viz., signal power, PAPR, bias-scaling factor, modulation order and sub-carrier count, the paper examines the trade-offs involved in optimizing the performance metrics over appropriate dynamic range of the DCO-OFDM transmitter.
References
1. Ranaweera C, Wong E, Nirmalathas A, Jayasundara C, Lim C. 5G C-RAN with optical fronthaul: an analysis from a deployment perspective. J Lightwave Technol. 2018;36:2059–68.10.1109/JLT.2017.2782822Search in Google Scholar
2. Armstrong J. OFDM for optical communications. J Lightwave Technol. 2013;27:189–204.10.1109/JLT.2008.2010061Search in Google Scholar
3. Armstrong J. Lowery A. Power efficient optical OFDM. Electron Lett. 2006;42:370–72.10.1049/el:20063636Search in Google Scholar
4. Armstrong J, Schmidt BJ. Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN. IEEE Commun Lett. 2008;12:343–5.10.1109/LCOMM.2008.080193Search in Google Scholar
5. Mesleh R, Elgala H, Haas H. On the performance of different OFDM based optical wireless communication systems. J Opt Commun Netw 2011;3:620–8.10.1364/JOCN.3.000620Search in Google Scholar
6. Singh DK, Dalal UD. Investigation of LED non-linearity on DCO-OFDM and ACO-OFDM in VLC systems using multichip RGB LEDs for indoor applications. Procedia Comput Sci. 2018;143:852–9.10.1016/j.procs.2018.10.377Search in Google Scholar
7. Haas H, Yin L, Wang Y, Chen C. What is LiFi. IEEE/OSA J Lightwave Technol. 2016;34:1533–43.10.1109/JLT.2015.2510021Search in Google Scholar
8. Dissanayake SD, Armstrong J. Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD Systems. J Lightw Technol. 2013;31:1063–72.10.1109/JLT.2013.2241731Search in Google Scholar
9. Tsonev D, Videv S, Haas H. Unlocking spectral efficiency in intensity modulation and direct detection systems. IEEE J Sel Areas Commun. 2015;33:1758–70.10.1109/JSAC.2015.2432530Search in Google Scholar
10. Armstrong J, Lowery A. Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering. Electron Lett. 2002;38:246–7.10.1049/el:20020175Search in Google Scholar
11. Urbaf J, Marsalek R. PAPR reduction by combination of interleaving with repeated clipping and filtering in OFDM. International Conference on Radioelektronika, 2007.10.1109/RADIOELEK.2007.371658Search in Google Scholar
12. Ogunkoya KB, Poola WO. Pilot symbol utilization for reducing peak-to-average power ratio in optical OFDM. 9th International Symposium on Communication Systems, Networks and Digital Signals (CSNDSP), 2014.10.1109/CSNDSP.2014.6923956Search in Google Scholar
13. Singha VK, Dalal UD. Abatement of PAPR for ACO-OFDM deployed in VLC systems by frequency modulation of the baseband signal forming a constant envelope. Opt Commun. 2017;393:258–66.10.1016/j.optcom.2017.02.065Search in Google Scholar
14. Dimitrov S, Haas H. Optimum signal shaping in OFDM-based optical wireless communication systems. IEEE Vehicular Technology Conference, September, 2012. DOI:10.1109/VTCFall.2012.6399084.Search in Google Scholar
15. Dimitrov S, Sinanovic S, Haas H. Signal shaping and modulation for optical wireless communication systems. J Lightwave Technol. 2012;30:1319–28.10.1109/JLT.2012.2188376Search in Google Scholar
16. Ochiai H, Imai H. On the distribution of the peak-to-average power ratio in OFDM signals. IEEE Trans Commun. 2001;49:282–89.10.1109/26.905885Search in Google Scholar
17. Chen L, Krongold B, Evans J. Performance analysis for optical OFDM transmission in short-range IM/DD systems. J Lightw Technol 2012;30:974–83.10.1109/JLT.2012.2185779Search in Google Scholar
18. Abdulkafi AA, Alias MU, Hussein YS. Performance analysis of DCO-OFDM in VLC system. IEEE 12th Malaysia International Conference on Communications (MICC), Kuching, Malaysia, November, 2015.10.1109/MICC.2015.7725427Search in Google Scholar
19. Jiang T, Guizani M, Chen H, Jiang W, Wu Y. Derivation of PAPR distribution for OFDM wireless systems based on extreme value theory. IEEE transactions on wireless communications 2008;7:1298–1305.10.1109/TWC.2008.060862Search in Google Scholar
20. Ochiai H, Imai H. Performance of the deliberate clipping with adaptive symbol selection for strictly band-limited OFDM systems. IEEE J Sel Areas Commun 2000;18:2270–7.10.1109/49.895032Search in Google Scholar
21. Patel D, Singh UD, Dalal D. Assessment of the DC bias to mitigate the clipping noise in DCO-OFDM, ACO-OFDM; and non-linear distortion of DFB laser. Wireless Personal Communation, Springer Publications.Search in Google Scholar
22. Mynbaev DK, Scheiner Ll. Fiber-optic communications technology. Pearson Education,Inc., 2001:344.Search in Google Scholar
23. Friese M. On the achievable information rate with peak-power-limited orthogonal frequency-division multiplexing. IEEE Trans Inf Theory. 2000;46:2579–87.10.1109/18.887865Search in Google Scholar
24. Majo JE. Asymptotic distortion spectrum of clipped, DC-biased, gaussian noise. IEEE Trans Commun. 1992;40:1339–44.10.1109/26.156638Search in Google Scholar
25. Dimitrov S, Sinanovic S, Haas H. Clipping noise in OFDM-based optical wireless communication systems. IEEE Trans Wireless Commun 2012;60:1072–81.10.1109/TCOMM.2012.022712.100493Search in Google Scholar
© 2019 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Amplifiers
- Effect of carrier (hole) temperature on performance of optical amplifiers quantum dot structure
- Devices
- 1 × 2 power splitter based on photonics crystals fibers
- Evolution of Adder and Subtractor Circuit Using Si3N4 Microring Resonator
- Fibers
- Different Photonic Crystal Fibers Configurations with the Key Solutions for the Optimization of Data Rates Transmission
- Networks
- Design and implementation of OLT switching function in 40/10G TDM-PON experimental system
- A parallel cross-connection recovery scheme for dual link failure in elastic optical networks
- A Brief Review on the Methods that Improve Optical Burst Switching Network Performance
- MBO-Based Bandwidth Allocation and Traffic Coloring Optimization in PON
- HMM-Based Secure Framework for Optical Fog Devices in the Optical Fog/Cloud Network
- Attack-Aware Dynamic Upstream Bandwidth Assignment Scheme for Passive Optical Network
- Systems
- 2 × 10 Gbit/s–10 GHz Radio over Free Space Optics Transmission System Incorporating Mode Division Multiplexing of Hermite Gaussian Modes
- Impact of Rayleigh-Distributed PAPR on the Performance of a Pre-Clipped DCO-OFDM System
- Suitability of FBG for Gain Flatness of 64 × 10 Gbps DWDM System Using Hybrid (EDFA+YDFA) Optical Amplifier in C + L Band up to 50 GHz (0.4 nm) Channel Spacing
- BER Performance Analysis of an Orthogonal FDM Free Space Optical Communication System with Homodyne Optical Receiver over Turbulent Atmospheric Channel
- Theory
- Numerical Analysis of Soliton Propagation in a Tapered Waveguide
- New Optical Codes Based on Construction of Parity Check Matrix of LDPC Codes
- Performance Analysis of 20 Gbit/s–40 GHz MDM-Ro-FSO Link Incorporating DPSK Modulation Scheme
