Design of Signal Constellations in the Presence of Phase Noise

Li, Yang; Xu, Shenheng; Yang, Huazhong

doi:10.1109/vetecf.2008.212

Cited by 15 publications

(13 citation statements)

References 8 publications

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“…In [23], this method is adopted to optimize the constellations in the presence of both PN and AWGN. Coherent detection is investigated for both weak and strong PN scenarios [11].…”

Section: A Finding Optimal M-qam Constellationmentioning

confidence: 99%

“…In the gradient-search algorithm, four parameters are adjusted to obtain the desired constellation after convergence: Gaussian noise power, step size, initial constellation points and rotation of the transmitted symbols [18], [23]. Gaussian noise power is adjusted to achieve SER of about 4 × 10 −3 , close to typical forward error correction (FEC) thresholds.…”

Section: A Finding Optimal M-qam Constellationmentioning

confidence: 99%

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Discrete Multi-Tone Transmission With Optimized QAM Constellations for Short-Reach Optical Communications

Amiralizadeh

Yekani

Rusch

2016

J. Lightwave Technol.

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Abstract-We investigate performance of optimized M-ary quadrature amplitude modulation (M-QAM) constellations in short-reach single-polarization (SP) and dual-polarization (DP) discrete multi-tone (DMT) with direct detection. The constellations are obtained by using an iterative gradient-search algorithm. For the non-square constellations, we find bit-to-symbol mappings with a blind search method. Our experiments show that data rate can be improved in both SP and DP DMT systems by using optimized constellations instead of square M-QAM. Net data transmission rates of 165 Gb/s and 152 Gb/s are respectively achieved for back-to-back and 2.2 km in a direct-detection DP DMT system assuming forward error correction (FEC) threshold of 3.8 × 10 −3 .

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“…In [23], this method is adopted to optimize the constellations in the presence of both PN and AWGN. Coherent detection is investigated for both weak and strong PN scenarios [11].…”

Section: A Finding Optimal M-qam Constellationmentioning

confidence: 99%

Section: A Finding Optimal M-qam Constellationmentioning

confidence: 99%

Discrete Multi-Tone Transmission With Optimized QAM Constellations for Short-Reach Optical Communications

Amiralizadeh

Yekani

Rusch

2016

J. Lightwave Technol.

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“…Circular QAM constellations have been widely employed in satellite broadcasting systems. The interest on circular M -QAM has been due to smaller amplitude fluctuation as compared to rectangular QAM, which results in fewer amplitude levels [8]. However, the potential robustness of circular QAM constellations to phase noise has been overlooked.…”

Section: Introductionmentioning

confidence: 99%

“…In [15] the design of circular constellations in the presence of phase offset is investigated and a closed-form SEP for a specific circular constellation is derived. However, the results in [15] are limited to constant phase offset, where it is assumed that phase noise is constant over a set of symbols.…”

Section: Introductionmentioning

confidence: 99%

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Performance of circular QAM constellations with time varying phase noise

Tariq

Mehrpouyan

Svensson

2012

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC)

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Abstract-Time varying phase noise is a limiting factor in highspeed wireless communication systems, e.g., microwave backhaul links in cellular networks. This paper seeks to investigate the performance of circular M-ary quadrature amplitude modulations (M-QAMs) in the presence of time varying phase noise. A new approximate union bound expression for the symbol-error probability (SEP) of a specific circular M -QAM constellation is derived. Numerical results show that this expression is accurate at mediumto-high signal-to-noise ratios (SNRs) for different constellation orders, M . Next, exact closed-form expressions for the SEP of binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) modulations in the presence of phase noise are derived. Extensive simulations are carried out to compare the performance of rectangular and circular QAM modulations in the presence of time varying phase noise, where it is demonstrated that circular QAM modulations can outperform their rectangular counterparts when considering the effect of time varying phase noise.

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Dynamic adversarial jamming-based reinforcement learning for designing constellations

Xie²,

Nan

et al. 2023

Digital Communications and Networks

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Design of Signal Constellations in the Presence of Phase Noise

Cited by 15 publications

References 8 publications

Discrete Multi-Tone Transmission With Optimized QAM Constellations for Short-Reach Optical Communications

Discrete Multi-Tone Transmission With Optimized QAM Constellations for Short-Reach Optical Communications

Performance of circular QAM constellations with time varying phase noise

Dynamic adversarial jamming-based reinforcement learning for designing constellations

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