Dr Roger Giddings

Senior Lecturer in Optical Communications & DSP

Affiliations

School of Computer Science & Engineering

ORCID: 0000-0002-2111-5830

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Article › Research › Peer-reviewed
Published

Experimental Demonstrations of Matching Filter-free Digital Filter Multiplexed SSB OFDM IMDD Transmission Systems
Zhong, Z., Jin, W., Dong, Y., Sankoh, A., He, J., Hong, Y., Giddings, R., Pierce, I., O'Sullivan, M., Lee, J., Mariani, G., Durrant, T. & Tang, J., Apr 2021, In: IEEE Photonics Journal. 13, 2, 12 p., 7900512.
Research output: Contribution to journal › Article › peer-review
Published

Experimental Investigation of a Seamlessly Converged Fiber-Wireless Access Network Employing Free-Running Laser- and Envelope Detection-based mmWave Generation and Detection
Vallejo Castro, L., Gonem, O., Jin, W., Faruk, M. S., Giddings, R., Yi, X. & Tang, J., 7 Jan 2025, In: Optics Express. 33, 1, p. 604-618
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstration and optimisation of a synchronous clock recovery technique for real-time end-to-end optical OFDM transmission at 11.25Gb/s over 25km SSMF
Tang, J., Giddings, R. P. & Tang, J. M., 28 Jan 2011, In: Optics Express. 19, 3, p. 2831-2845
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstration of a DSP-based cross-channel interference cancellation technique for application in digital filter multiple access PONs
Giddings, R., Al-Rawachy, E. & Tang, J., 14 Feb 2017, In: Optics Express. 25, 4, p. 3850-3862 13 p., 270560.
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstration of a record high 11.25Gb/s real-time optical OFDM transceiver supporting 25km SMF end-to-end transmission in simple IMDD systems
Giddings, R. P., Jin, X. Q., Hugues-Salas, E., Giacoumidis, E., Wei, J. L. & Tang, J., 1 Mar 2010, In: Optics Express. 18, 6, p. 5541-5555
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstration of real-time 3Gb/s optical OFDM transceivers.
Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 14 Sept 2009, In: Optics Express. 17, 19, p. 16654-16665
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstration of record high 19.125Gb/s real-time end-to-end dual-band optical OFDM transmission over 25km SMF in a simple EML-based IMDD system
Giddings, R. P., Hugues-Salas, E. & Tang, J., 23 Aug 2012, In: Optics Express. 20, 18, p. 20666-20679
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstrations and extensive comparisons of end-to-end real-time optical OFDM transceivers with adaptive bit and/or power loading
Tang, J., Jin, X. Q., Wei, J. L., Giddings, R. P., Quinlan, T., Walker, S. & Tang, J. M., 1 Jun 2011, In: IEEE Photonics Journal. 3, 3, p. 500-511
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstrations of 30Gb/s/λ digital orthogonal filtering-multiplexed multiple channel transmissions over IMDD PON systems utilizing 10G-class optical devices
Deng, M., Sankoh, A., Giddings, R. & Tang, J., 25 Sept 2017, In: Optics Express. 25, 20, p. 24251-24261
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstrations of DSP-enabledflexibility, adaptability and elasticity ofmulti-channel >72Gb/s over 25 km IMDDtransmission systems
Jin, W., Zhong, Z., Jiang, S., He, J., Hu, S. H., Chang, D., Giddings, R., Hong, H., Jin, X., O'Sullivan, M., Durrant, T., Trewern, J., Mariani, G. & Tang, J., 30 Nov 2021, In: Optics Express. 29, 25, p. 41363-41377
Research output: Contribution to journal › Article › peer-review
Published

Experimental demonstrations of record high REAM intensity modulator-enabled 19.25Gb/s real-time end-to-end dual-band optical OFDM colorless transmissions over 25km SSMF IMDD systems
Zhang, Q. W., Hugues-Salas, E., Giddings, R. P., Wang, M. & Tang, J. M., 2013, In: Optics Express. 21, 7, p. 9167-9179 13 p.
Research output: Contribution to journal › Article › peer-review
Published

First experimental demonstration of 6Gb/s real-time optical OFDM transceivers incorporating channel estimation and variable power loading.
Tang, J., Giddings, R. P., Jin, X. Q. & Tang, J. M., 1 Oct 2009, In: Optics Express. 17, 22, p. 19727-19738
Research output: Contribution to journal › Article › peer-review
Published

First real-time experimental demonstrations of 11.25Gb/s optical OFDMA PONs with adaptive dynamic bandwidth allocation
Tang, J., Jin, X. Q., Hugues-Salas, E., Giddings, R. P., Wei, J. L., Groenwald, J. & Tang, J. M., 3 Oct 2011, In: Optics Express. 19, 21, p. 20557-20570
Research output: Contribution to journal › Article › peer-review
Published

Hybrid DFT-spread OFDM-Digital Filter Multiple Access PONs for Converged 5G Networks
Dong, Y. X., Jin, W., Giddings, R. P., O'Sullivan, M., Tipper, A., Durrant, T. & Tang, J. M., Jul 2019, In: IEEE Journal of Optical Communications and Networking. 11, 7, p. 347-353
Research output: Contribution to journal › Article › peer-review
Published

Hybrid OFDM-Digital Filter Multiple Access PONs
Dong, Y., Giddings, R. P. & Tang, J., 1 Dec 2018, In: Journal of Lightwave Technology. 36, 23, p. 5640-5649
Research output: Contribution to journal › Article › peer-review
Published

Hybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering
Sankoh, A., Jin, W., Zhong, Z., He, J., Hong, Y., Giddings, R., Pierce, I., O'Sullivan, M., Lee, J., Durrant, T. & Tang, J., Oct 2020, In: IEEE Photonics Journal. 12, 5, 10 p., 7905311.
Research output: Contribution to journal › Article › peer-review
Published

Hybrid SSB OFDM-Digital Filter Multiple Access PONs
Jin, W., Sankoh, A., Dong, Y., Giddings, R., O'Sullivan, M., Durrant, T., Lee, J. & Tang, J., 15 Apr 2020, In: Journal of Lightwave Technology. 38, 8, p. 2095 - 2105
Research output: Contribution to journal › Article › peer-review
Published

Improved Performance Robustness of DSP-Enabled Flexible ROADMs Free from Optical Filters and O-E-O Conversions
Jin, W., Zhang, C., Duan, X., Kadhum, M. R., Dong, Y. X., Giddings, R. P., Jiang, N., Qiu, K. & Tang, J. M., 1 Aug 2016, In: IEEE Journal of Optical Communications and Networking. 8, 8, p. 521-529 9 p.
Research output: Contribution to journal › Article › peer-review
Published

Intra-Cavity Chromatic Dispersion Impacts on 10-Gb/s Optical OFDM Transmissions Over 25-km Dual-RSOA-Based Self-Seeded PON Systems
Tang, J., Deng, M. L., Cao, B. Y., Giddings, R. P., Dong, Y. X., Jiang, N., Nesset, D., Qiu, K. & Tang, J. M., 18 Dec 2014, In: IEEE Photonics Journal. 7, 1
Research output: Contribution to journal › Article › peer-review
Published

Low-complexity modulation format identification based on am- 2 plitude histogram distributions for digital coherent receivers
Hao, M., Jiang, X., Xiong, X., Giddings, R., He, W. & Tang, J., 20 Apr 2023, In: Photonics.
Research output: Contribution to journal › Article › peer-review
Published

Multi-Constraint Gerchberg-Saxton Iteration Algorithms for Linearizing IM/DD Transmission Systems
Hu, S., Zhang, J., Tang, J., Jin, T., Jin, W., Liu, Q., Zhong, Z., Giddings, R., Hong, Y., Xu, B., Yi, X. & Qiu, K., 14 Mar 2022, In: Optics Express. 30, 6, p. 10019-10031 13 p.
Research output: Contribution to journal › Article › peer-review
Published

Multi-Level Subcarrier Index-Power Modulated Optical OFDM with Adaptive Bit Loading for IMDD PON Systems
Al Halabi, F., Chen, L., Giddings, R., Tang, J. & Hamie, A., 11 Nov 2016, In: IEEE Photonics Journal. 99
Research output: Contribution to journal › Article › peer-review
Published

Multiple Channel Interference Cancellation of Digital Filter Multiple Access PONs
Dong, Y., Al-Rawachy, E., Giddings, R. P., Jin, W., Nesset, D. & Tang, J., Jan 2017, In: Journal of Lightwave Technology. 35, 1, p. 34-44
Research output: Contribution to journal › Article › peer-review
Published

Negative power penalties of optical OFDM signal transmissions in directly modulated DFB laser-based IMDD systems incorporating negative dispersion fibers.
Tang, J., Zheng, X., Jin, X. Q., Giddings, R. P., Wei, J. L., Hugues-Salas, E., Hong, Y. & Tang, J. M., 1 Aug 2010, In: IEEE Photonics Journal. 2, 4, p. 532-542
Research output: Contribution to journal › Article › peer-review
Published

Performance Tolerance of IMDD DFMA PONs to Channel Frequency Response Roll-off
Giddings, R., Duan, X., Mansoor, S. & Tang, J., 1 Oct 2017, In: IEEE Photonics Technology Letters. 29, 19, p. 1655-1658 4 p.
Research output: Contribution to journal › Article › peer-review

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