Study on Computational Complexity in OFDM-RoF System Using SLM Technique

Shao, Yufeng; Ma, Wenzhe; Hu, Yiying; Huang, Jiadong; Xia, Mingyue

doi:10.1109/imccc.2015.199

Cited by 3 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At present, orthogonal frequency division multiplexing (OFDM) has been widely used in many optical access systems, such as OFDM modulated WDM-PON [1][2], OFDM based metro access [3], and OFDM-ROF systems [4][5][6]. The reason is that it has a good ability to resist chromatic dispersion (CD) and polarization mode dispersion (PMD), and the spectrum utilization rate is high and the flexible multi-service bandwidth allocation can be realized by using a large number of sub carriers [7][8].OFDM system not only has not guard band between sub channels, but also the main lobe of the spectrum of adjacent channel signals overlaps with each other .But the spectrum of each sub channel signal is orthogonal to each other in the frequency domain, and each subcarrier is orthogonal in time domain.…”

Section: Introductionmentioning

confidence: 99%

Generation of 8QAM-OFDM Optical Access Signals Using DMT Modulation Method

Shao¹,

Ma²,

Li³

et al. 2017

Proceedings of the 2017 5th International Conference on Frontiers of Manufacturing Science and Measuring Technology (FMSMT 2017

Self Cite

View full text Add to dashboard Cite

Abstract. In this letter， a 8QAM-DMT-OFDM optical access scheme is proposed and demonstrated. 8QAM-OFDM optical access signal is generated using discrete multitone (DMT) modulation, and its optical spectrum, electric spectrum before electro-optical conversion, constellation diagrams before and after transmission and bit error rate (BER) are measured. By this scheme, the system complexity and costs could be reduced .The results show that t As the transmission distance is 20 km, the value of BER of 8QAM-DMT-OFDM optical access signals is below 10 -4 .Therefore, this work not only reduces the complexity and cost budget of 8QAM-DMT-OFDM optical access system but also improves the receiver sensitivity.

show abstract

Section: Introductionmentioning

confidence: 99%

Generation of 8QAM-OFDM Optical Access Signals Using DMT Modulation Method

Shao¹,

Ma²,

Li³

et al. 2017

Proceedings of the 2017 5th International Conference on Frontiers of Manufacturing Science and Measuring Technology (FMSMT 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Amongst these techniques, selected mapping (SLM) is one of the promising methods for reducing PAPR influence because it is simple to achieve and not introduce any distortion [10]. Recently, SLM method is introduced into generation of (16 quadrature amplitude modulation orthogonal frequency division multiplexing) 16QAM-OFDM signals in millimeter wave optical access systems for solving high PAPR problem [11,12]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Research on modified selected mapping technique for PAPR reduction and reception performance improvement in 8QAM-OFDM optical access systems

Shao

2017

J. Eur. Opt. Soc.-Rapid Publ.

Self Cite

View full text Add to dashboard Cite

Background: Orthogonal frequency division multiplexing has been regarded as one of the promising technologies for the optical access systems application. However, high peak-to-average power ratio will cause the signal distortion and enable the used amplifier to operate in nonlinear section. Methods: In this paper, a modified selected mapping technique is introduced for reducing the peak-to-average power ratio and enhancing reception performance of the downstream 8QAM-OFDM signals in optical access systems. Results: Compared with the traditional selected mapping technique, the PAPR value of 8QAM-OFDM optical downstream signals with 128 subcarriers is reduced by almost 2 dB using modified SLM when the complementary cumulative distribution function probability value is 10−2. Moreover, the bit error rate performance will be improved, while 10Gbit/s 8QAM-OFDM optical downlink signals are transmitted over single mode fiber with different access length. Conclusions: Hence, the proposed scheme becomes more efficient for the future optical orthogonal frequency division multiplexing access systems.

show abstract

Proposal and application of hybrid SLM-PTS method in 8QAM-OFDM optical access system for reducing PAPR influence

Shao

Wang

et al. 2017

2017 2nd International Conference on Image, Vision and Computing (ICIVC)

View full text Add to dashboard Cite

Study on Computational Complexity in OFDM-RoF System Using SLM Technique

Cited by 3 publications

References 15 publications

Generation of 8QAM-OFDM Optical Access Signals Using DMT Modulation Method

Generation of 8QAM-OFDM Optical Access Signals Using DMT Modulation Method

Research on modified selected mapping technique for PAPR reduction and reception performance improvement in 8QAM-OFDM optical access systems

Proposal and application of hybrid SLM-PTS method in 8QAM-OFDM optical access system for reducing PAPR influence

Contact Info

Product

Resources

About