Subcarrier Grouping-Enabled Improvement in Transmission Performance of Subcarrier Index-Power Modulated Optical OFDM for IM/DD PON Systems

As an improved variant of a previously published subcarrier index-power modulated optical orthogonal frequency division multiplexing (SIPM-OOFDM), a signal transmission technique termed SIPM-OOFDM with subcarrier grouping (SIPM-SG-OOFDM) is proposed and investigated for the first time. In SIPM-SG-OOFDM, each symbol is divided into multiple subcarrier groups, each of which is assigned with a specific power pattern according to an incoming data sequence. As such, in comparison with conventional OOFDM, extra information bits are conveyed without significantly compromising the transceiver complexity. In addition, subcarrier grouping also offers highly desired zero-overhead automatic error correction at the receiver. Detailed analysis and numerical simulations are undertaken to identify optimum SIPM-SG-OOFDM transceiver parameters and also to explore the corresponding maximum achievable transmission performances over passive optical network systems based on intensity modulation and direct-detection. It is shown that, compared to SIPM-OOFDM, SIPM-SG-OOFDM not only increases the signal transmission capacity by 11%, but also improves the system power budget by approximately 1.0 dB.

[1]  Yaojun Qiao,et al.  Low-PAPR Asymmetrically Clipped Optical OFDM for Intensity-Modulation/Direct-Detection Systems , 2015, IEEE Photonics Journal.

[2]  Changjian Guo,et al.  A long reach IM/DD OFDM-PON using super-Nyquist image induced aliasing and code-division multiplexing , 2014, OFC 2014.

[3]  Yuefeng Ji,et al.  A Cost-Effective and Efficient Scheme for Optical OFDM in Short-Range IM/DD Systems , 2014, IEEE Photonics Technology Letters.

[4]  Lin Chen,et al.  Subcarrier Index-Power Modulated Optical OFDM and Its Performance in IMDD PON Systems , 2016, Journal of Lightwave Technology.

[5]  Xianfeng Tang,et al.  Dual-Mode Index Modulation Aided OFDM With Constellation Power Allocation and Low-Complexity Detector Design , 2017, IEEE Access.

[6]  Vivek Kachhatiya,et al.  Wavelength division multiplexing-dense wavelength division multiplexed passive optical network (WDM-DWDM-PON) for long reach terrain connectivity , 2016, 2016 International Conference on Communication and Signal Processing (ICCSP).

[7]  H. Vincent Poor,et al.  Orthogonal Frequency Division Multiplexing With Index Modulation , 2012, IEEE Transactions on Signal Processing.

[8]  C. Li,et al.  Phase Noise Canceled Polarization-Insensitive All-Optical Wavelength Conversion of 557-Gb/s PDM-OFDM Signal Using Coherent Dual-Pump , 2015, Journal of Lightwave Technology.

[9]  C.P. Sandbank Fibre Optic Communication Systems , 1977, 1977 7th European Microwave Conference.

[10]  Lin Chen,et al.  Subcarrier Index-Power Modulated Optical OFDM With Superposition Multiplexing for IMDD Transmission Systems , 2016, Journal of Lightwave Technology.

[11]  Justin P. Coon,et al.  Adaptive OFDM With Index Modulation for Two-Hop Relay-Assisted Networks , 2017, IEEE Transactions on Wireless Communications.

[12]  Xinying Li,et al.  Experimental Demonstration of Four-Channel WDM 560 Gbit/s 128QAM-DMT Using IM/DD for 2-km Optical Interconnect , 2017, Journal of Lightwave Technology.

[13]  Yong Liang Guan,et al.  Generalization of Orthogonal Frequency Division Multiplexing With Index Modulation , 2015, IEEE Transactions on Wireless Communications.

[14]  Harald Haas,et al.  Subcarrier-index modulation OFDM , 2009, 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications.

[15]  Qixiang Cheng,et al.  256-QAM Interleaved Single Carrier FDM for Short-Reach Optical Interconnects , 2017, IEEE Photonics Technology Letters.

[16]  Lajos Hanzo,et al.  Dual-Mode Index Modulation Aided OFDM , 2017, IEEE Access.

[17]  Lin Chen,et al.  Multilevel Subcarrier Index-Power Modulated Optical OFDM With Adaptive Bit Loading for IMDD PON Systems , 2016, IEEE Photonics Journal.

[18]  Ricardo M. Ferreira,et al.  Multicarrier Digital Backpropagation for 400G Optical Superchannels , 2016, Journal of Lightwave Technology.