Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity
A low-complexity mobile fronthaul architecture via digital code-division multiplexing (CDM) is proposed to enable channel aggregation of 4G-LTE signals. In comparison with traditional frequency division multiplexing based aggregation scheme, the fast Fourier transformation/inverse fast Fourier trans...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8031892/ |
| _version_ | 1829485786038272000 |
|---|---|
| author | Haibo Li Qi Yang Songnian Fu Ming Luo Xiang Li Zhixue He Peng Jiang Yongpiao Liu Shaohua Yu |
| author_facet | Haibo Li Qi Yang Songnian Fu Ming Luo Xiang Li Zhixue He Peng Jiang Yongpiao Liu Shaohua Yu |
| author_sort | Haibo Li |
| collection | DOAJ |
| description | A low-complexity mobile fronthaul architecture via digital code-division multiplexing (CDM) is proposed to enable channel aggregation of 4G-LTE signals. In comparison with traditional frequency division multiplexing based aggregation scheme, the fast Fourier transformation/inverse fast Fourier transformation operations are replaced by simple sign selection and addition, leading to the significant reduction of computational complexity. Moreover, synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for the purpose of control and management using the CDM approach is also presented to be compliant with the common public radio interface (CPRI). In a proof-of-concept experiment, we demonstrate the transmission of 48 × 20 MHz LTE signals with CPRI equivalent data rate of 59 Gb/s, achieving an average error vector magnitude (EVM) of ~3.6% and ~4.3% after 5 and 20 km transmission over standard single-mode fiber (SSMF), respectively. Furthermore, we successfully demonstrate the transmission of 32 × 20 MHz LTE signals together with CPRI-compliant CWs, corresponding to CPRI-equivalent data rate of 39.32 Gb/s, only using single optical wavelength channel with analog bandwidth of ~1.96 GHz. After transmission over 5 km SSMF, CWs can be error-free recovered while the LTE signals are recovered with an EVM of ~3.6%. |
| first_indexed | 2024-12-14T22:51:42Z |
| format | Article |
| id | doaj.art-ff90d79ee2d546de9565bd8bb996f263 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T22:51:42Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-ff90d79ee2d546de9565bd8bb996f2632022-12-21T22:44:42ZengIEEEIEEE Photonics Journal1943-06552018-01-0110211010.1109/JPHOT.2017.27515388031892Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low ComplexityHaibo Li0Qi Yang1Songnian Fu2Ming Luo3Xiang Li4Zhixue He5Peng Jiang6Yongpiao Liu7Shaohua Yu8Wuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, ChinaState Key Laboratory of Optical Communication Technologies and Networks, Wuhan Research Institute of Posts & Telecommunications, Wuhan, ChinaWuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, ChinaState Key Laboratory of Optical Communication Technologies and Networks, Wuhan Research Institute of Posts & Telecommunications, Wuhan, ChinaState Key Laboratory of Optical Communication Technologies and Networks, Wuhan Research Institute of Posts & Telecommunications, Wuhan, ChinaWuhan Hongxin Telecommunication Technologies Co., Ltd., Wuhan, ChinaWuhan Hongxin Telecommunication Technologies Co., Ltd., Wuhan, ChinaWuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, ChinaA low-complexity mobile fronthaul architecture via digital code-division multiplexing (CDM) is proposed to enable channel aggregation of 4G-LTE signals. In comparison with traditional frequency division multiplexing based aggregation scheme, the fast Fourier transformation/inverse fast Fourier transformation operations are replaced by simple sign selection and addition, leading to the significant reduction of computational complexity. Moreover, synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for the purpose of control and management using the CDM approach is also presented to be compliant with the common public radio interface (CPRI). In a proof-of-concept experiment, we demonstrate the transmission of 48 × 20 MHz LTE signals with CPRI equivalent data rate of 59 Gb/s, achieving an average error vector magnitude (EVM) of ~3.6% and ~4.3% after 5 and 20 km transmission over standard single-mode fiber (SSMF), respectively. Furthermore, we successfully demonstrate the transmission of 32 × 20 MHz LTE signals together with CPRI-compliant CWs, corresponding to CPRI-equivalent data rate of 39.32 Gb/s, only using single optical wavelength channel with analog bandwidth of ~1.96 GHz. After transmission over 5 km SSMF, CWs can be error-free recovered while the LTE signals are recovered with an EVM of ~3.6%.https://ieeexplore.ieee.org/document/8031892/Mobile fronthauldigital code-division multiplexing (CDM)control words (CWs) |
| spellingShingle | Haibo Li Qi Yang Songnian Fu Ming Luo Xiang Li Zhixue He Peng Jiang Yongpiao Liu Shaohua Yu Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity IEEE Photonics Journal Mobile fronthaul digital code-division multiplexing (CDM) control words (CWs) |
| title | Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity |
| title_full | Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity |
| title_fullStr | Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity |
| title_full_unstemmed | Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity |
| title_short | Digital Code-Division Multiplexing Channel Aggregation for Mobile Fronthaul Architecture With Low Complexity |
| title_sort | digital code division multiplexing channel aggregation for mobile fronthaul architecture with low complexity |
| topic | Mobile fronthaul digital code-division multiplexing (CDM) control words (CWs) |
| url | https://ieeexplore.ieee.org/document/8031892/ |
| work_keys_str_mv | AT haiboli digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT qiyang digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT songnianfu digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT mingluo digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT xiangli digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT zhixuehe digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT pengjiang digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT yongpiaoliu digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity AT shaohuayu digitalcodedivisionmultiplexingchannelaggregationformobilefronthaularchitecturewithlowcomplexity |