Reductions of peak-to-average power ratio and optical beat interference in cost-effective OFDMA-PONs

被引：6

作者：

Tsokanos, A. ^{[1
]}

Giacoumidis, E. ^{[2
,3
]}

Zardas, G. ^{[7
]}

Kavatzikidis, A. ^{[2
,4
]}

Diamantopoulos, N. P. ^{[2
,5
,6
]}

Aldaya, I. ^{[3
]}

Tomkos, I. ^{[2
]}

机构：

[1] Univ Plymouth, Sch Comp & Math, Fac Sci & Technol, Plymouth PL4 8AA, Devon, England

[2] Athens Informat Technol AIT Ctr, Athens 19002, Greece

[3] Telecom Paris Tech, Dept Commun & Elect, F-75013 Paris, France

[4] iKnowHow SA, Athens, Attica, Greece

[5] Aston Univ, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England

[6] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[7] Technol Educ Inst TEI Lamia, Dept Informat, Lamia 35100, Greece

来源：

PHOTONIC NETWORK COMMUNICATIONS | 2013年 / 26卷 / 2-3期

关键词：

Orthogonal frequency-division multiplexing (OFDM); Passive optical network (PON); Direct-detection; TRANSMISSION; SYSTEMS;

D O I：

10.1007/s11107-013-0405-3

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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 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 , the minimum allowed channel spacing is 11 GHz when employing six users.

引用

页码：44 / 52

页数：9

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