Novel optical access and digital processing architectures for future mobile backhaul

Neda Cvijetic, Akihiro Tanaka, Milorad Cvijetic, Yue Kai Huang, Ezra Ip, Yin Shao, Ting Wang

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

In this paper, primary technical challenges for emerging optical mobile backhaul (MBH) networks are discussed, with a focus on novel optical access and digital signal processing (DSP) architectures for future MBH. The first downstream/upstream Orthogonal Frequency Division Multiple Access and Time Division Multiple Access Passive Optical Network (OFDMA/TDMA-PON) achieving >100 Mb/s per-cell mobile backhaul and burst-mode operation using off-the-shelf avalanche photodiodes (APDs) is proposed and experimentally demonstrated for last-mile optical MBH with 200 cells per fiber. In the new approach, the use of OFDMA is motivated by the capability to establish low latency, virtual point-to-point links in the frequency-domain to serve high-density cell areas, while a judicious hybrid of DSP-enhanced digital radio-over-fiber (dRoF) and TDMA is proposed as an efficient way to meet < 1 ms latency constraints subject to a 3 dB upstream burst-mode dynamic range tolerance. By thus enabling high speed, low latency, and low cost via simplified optics, the novel OFDMA/TDMA-PON is promising for future 4G and beyond optical backhaul networks.

Original languageEnglish (US)
Article number6380518
Pages (from-to)621-627
Number of pages7
JournalJournal of Lightwave Technology
Volume31
Issue number4
DOIs
StatePublished - 2013

Fingerprint

time division multiple access
frequency division multiple access
upstream
signal processing
bursts
cells
fibers
shelves
avalanches
dynamic range
photodiodes
emerging
high speed
optics

Keywords

  • Digital signal processing (DSP)
  • mobile backhaul
  • optical networks
  • orthogonal frequency division multiplexing (OFDM)
  • passive optical networks (PON)
  • software-defined

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Novel optical access and digital processing architectures for future mobile backhaul. / Cvijetic, Neda; Tanaka, Akihiro; Cvijetic, Milorad; Huang, Yue Kai; Ip, Ezra; Shao, Yin; Wang, Ting.

In: Journal of Lightwave Technology, Vol. 31, No. 4, 6380518, 2013, p. 621-627.

Research output: Contribution to journalArticle

Cvijetic, Neda ; Tanaka, Akihiro ; Cvijetic, Milorad ; Huang, Yue Kai ; Ip, Ezra ; Shao, Yin ; Wang, Ting. / Novel optical access and digital processing architectures for future mobile backhaul. In: Journal of Lightwave Technology. 2013 ; Vol. 31, No. 4. pp. 621-627.
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