Orthogonal frequency division multiple access PON (OFDMA-PON) for colorless upstream transmission beyond 10 Gb/s

Lightwave communications is a necessity for the information age. Optical links provide enormous bandwidth, and the optical fiber is the only medium that can meet the modern society's needs for transporting massive amounts of data over long distances. Applications range from global highcapacity networks, which constitute the backbone of the internet, to the massively parallel interconnects that provide data connectivity inside datacenters and supercomputers. Optical communications is a diverse and rapidly changing field, where experts in photonics, communications, electronics, and signal processing work side by side to meet the ever-increasing demands for higher capacity, lower cost, and lower energy consumption, while adapting the system design to novel services and technologies. Due to the interdisciplinary nature of this rich research field, Journal of Optics has invited 16 researchers, each a world-leading expert in their respective subfields, to contribute a section to this invited review article, summarizing their views on state-of-the-art and future developments in optical communications.

show abstract

“…Their future success appears related to the cost decrease of fast digital signal processors [124,125].…”

Section: Current and Future Challengesmentioning

confidence: 99%

Roadmap of optical communications

Agrell

Karlsson

Chraplyvy³

et al. 2016

J. Opt.

465

268

View full text Add to dashboard Cite

show abstract

“…As an emerging optical access network, OFDM-PON has gained extensive attentions from numerous research institutions [13][14][15][16][17][18], since it was proposed at the international conference ECOC 2007 [19]. As a multi-carrier modulation technique, OFDM transfers a high-speed and serial data trunk into N parallel low-speed streams, so the period of each symbol becomes N times the original one.…”

Section: ) Ofdm-ponmentioning

confidence: 99%

Optimization mechanisms in multi-dimensional and flexible PONs: challenging issues and possible solutions

Gong

Guo

Liu

et al. 2015

Optical Switching and Networking

View full text Add to dashboard Cite

“…Owing to their high spectral efficiency, good chromatic dispersion tolerance, flexible and dynamic bandwidth allocation as well as the ability to adapt to frequency dependent channel quality with simple single-tap equalization [4][5][6], the orthogonal frequency division multiplexing (OFDM) based PONs including orthogonal frequency division multiple access (OFDMA), wavelength division multiplexing (WDM)-OFDM-PON, time division multiplexing (TDM)-OFDM-PON and code division multiple access (CDMA)-OFDM PON [7][8][9][10][11] are investigated as promising solutions for future optical access. TDM-OFDM-PON suffers from transmission impairments at higher transmission speeds caused by burst synchronization and interference between different optical network units (ONUs).…”

Section: Introductionmentioning

confidence: 99%