Experimental demonstration of transport over fiber using 5G NR with performance enhancement using DPD

Hadi, Muhammad Usman

doi:10.1016/j.optcom.2022.129226

Cited by 1 publication

(2 citation statements)

References 54 publications

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“…Similarly, the condition number, time consumption, and other similar statistics of OMSA‐DPD methods also signify that it is a better optimized, less complex, and efficient method as compared to MSA and GMP. These can be compared with our previous work where we used DPD based on ML methods 17,18 . The proposed OMSA performs efficiently but its actual gain is in terms of complexity reduction, which is very high in case of ML DPD.…”

Section: Experimental Findingsmentioning

confidence: 98%

“…These can be compared with our previous work where we used DPD based on ML methods. 17,18 The proposed OMSA performs efficiently but its actual gain is in terms of complexity reduction, which is very high in case of ML DPD. The OMSA architecture achieves EVM values consistent with the EVM limit of 3.5% specified in 3GPP TR 21.916 V16.2.0 (2022-06)16 and the latest version 17 of 3GPP TS 36.141, release 17, version 17.5.0.…”

Section: Experimental Findingsmentioning

confidence: 99%

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Optimized MSA DPD method for improving 5G multiband optical fronthaul performance

Hadi

Murtaza

Kausar

2023

Micro & Optical Tech Letters

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A modified optimized magnitude‐selective affine (OMSA) model‐based digital predistortion (DPD) is presented that introduces the weighting function into our earlier proposed magnitude‐selective affine (MSA) method with an aim to further reduce the complexity overheads without affecting performance compared to the MSA method. This model utilizes a power‐reliant weighted function rather than the summation of MSA quantities for improving the multiband 5G new radio (NR) analog radio over fiber system performance. The OMSA‐DPD method is tested using 5G NR signals which are transmitted over a 10‐km fiber length. The performance of the OMSA‐DPD method is assessed in comparison to MSA and generalized memory polynomial (GMP) methods in terms of adjacent channel power ratio, error vector magnitude, and complexity. The experimental results show that the OMSA‐DPD method achieves better performance with lower complexity compared to the MSA and GMP models, meeting the 3GPP limits.

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Section: Experimental Findingsmentioning

confidence: 98%

Section: Experimental Findingsmentioning

confidence: 99%