Paper Info
Title
Reductions of peak-to-average power ratio and optical beat interference in cost-effective OFDMA-PONs
Abstract
The peak-to-average power ratio (PAPR) and optical beat interference (OBI) effects are examined thoroughly in orthogonal frequency-division multiplexing access (OFDMA)-passive optical networks (PONs) at a signal bit rate up to $$\sim 20\,\mathrm{{Gb}}/{\hbox {s}}$$ ~ 20 Gb / s per channel using cost-effective intensity-modulation and direct-detection (IM/DD). Single-channel OOFDM and upstream multichannel OFDM-PONs are investigated for up to six users. A number of techniques for mitigating the PAPR and OBI effects are presented and evaluated including adaptive-loading algorithms such as bit/power-loading, clipping for PAPR reduction, and thermal detuning (TD) for the OBI suppression. It is shown that the bit-loading algorithm is a very efficient PAPR reduction technique by reducing it at about 1.2 dB over 100 Km of transmission. It is also revealed that the optimum method for suppressing the OBI is the TD + bit-loading. For a targeted BER of $$1 \times 10 ^{-3}$$ 1 脳 10 - 3 , the minimum allowed channel spacing is 11 GHz when employing six users.
Year
DOI
Venue
2013
10.1007/s11107-013-0405-3
Photonic Network Communications
Keywords
Field
DocType
Orthogonal frequency-division multiplexing (OFDM),Passive optical network (PON),Direct-detection
Topology,Channel spacing,Power ratio,Computer science,Bit rate,Computer network,Communication channel,Beat (music),Interference (wave propagation),Multiplexing,Electrical engineering
Journal
Volume
Issue
ISSN
26
2-3
1572-8188(Series Online ISSN)1387-974X(Series Print ISSN)
Citations 
PageRank 
References 
1
0.43
1
Authors
7
Name
Order
Citations
PageRank
Athanasios Tsokanos111.45
Elias G. Giacoumidis265.51
G. Zardas310.43
A. Kavatzikidis410.43
N. P. Diamantopoulos511.79
Ivan Aldaya6298.84
I. Tomkos75610.48