Rupendra Maharjan, I. Lavrinovica, A. Supe, J. Porins
{"title":"Minimization of FWM effect in nonlinear optical fiber using variable channel spacing technique","authors":"Rupendra Maharjan, I. Lavrinovica, A. Supe, J. Porins","doi":"10.1109/RTUWO.2016.7821844","DOIUrl":"https://doi.org/10.1109/RTUWO.2016.7821844","url":null,"abstract":"Optical Fiber Communication widely implements Dense Wave Division Multiplexing (DWDM) technique in order to accommodate large number of channels within a limited bandwidth. But, this technology suffers a serious degradation in signal quality due to inter-channel interference. Optical Kerr Effect, in addition to this, worsens the situation. This paper deals with minimization of Four Wave Mixing (FWM) impact, one of the Optical Kerr effects, by using variable channel spacing instead of conventional fixed channel spacing technique. FWM effect generates spurious components at multiple frequencies, whose effective amplitude can be reduced using different channel spacing. Bit Error Rate (BER) observed for different length of fiber has been analyzed with an aim to estimate the difference between variable channel spacing algorithms. Obtained results have shown that BER of 10–11 can be reached with 153.7 km long fiber for fixed channel spacing while the usage of variable channel spacing method keeps the same BER level with 160.5 km long fiber.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133095590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of broadband light source spectral slicing in PON systems","authors":"Kristaps Dravnieks, S. Spolitis","doi":"10.1109/RTUWO.2016.7821885","DOIUrl":"https://doi.org/10.1109/RTUWO.2016.7821885","url":null,"abstract":"The present paper discusses the performance of 32-channel spectrum sliced wavelength division-multiplexed passive optical network (SS-WDM PON) operating at 10 Gbit/s transmission speed per channel with broadband ASE light source which is realized using two EDFA amplifiers. This paper compares performance of intensity modulated fiber optical spectrum sliced transmission system with NRZ and RZ line codes and direct detection. Additionally, the maximum achievable transmission distance of investigated optical transmission system is evaluated. It was found that the maximum reach of SS-WDM PON system with NRZ and RZ line codes is about 160 km, which is completely sufficient to provide 10 Gbit/s data transmission per channel with BER<10−3 if forward error correction (FEC) is used.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133791574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Active-RFId based vehicular system to help the production cycle of bentonite-coal dust mixtures: A case study","authors":"G. Gragnani, C. Montecucco, L. Casella","doi":"10.1109/RTUWO.2016.7821859","DOIUrl":"https://doi.org/10.1109/RTUWO.2016.7821859","url":null,"abstract":"A system based on active RFID and aiming to assist the production cycle of a factory producing bentonite-coal dust mixtures and lustrous carbon formers for foundries is presented and discussed. The vehicular system works in a very harsh environment and uses RFID tags as beacons to locate the various area of the factory. An algorithm to discriminate among different tags is presented and discussed. The plant is now integrated within the production cycle and is showing very satisfactory performances.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114145068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of in-line EDFA performance dependence on channel spacing in WDM transmission systems","authors":"Jūlija Putrina, S. Olonkins, V. Bobrovs","doi":"10.1109/RTUWO.2016.7821848","DOIUrl":"https://doi.org/10.1109/RTUWO.2016.7821848","url":null,"abstract":"The aim of this paper is to estimate the impact of changing channel spacing in a wavelength division multiplexed (WDM) transmission system on the performance of the in-line erbium doped fiber amplifier (EDFA). The performance of the EDFA was investigated in a 16 channel 9.953 Gbit/s WDM transmission system with non-return-to-zero encoding technique, intensity on-off keying modulation format (NRZ-OOK) and three different values of channel spacing (37.5 GHz, 50 GHz and 100 GHz). The single-pump EDFA solution with co-propagating pumping radiation and 12 m long erbium doped fiber was used. To estimate the impact of changes of channel spacing on the performance of the in-line EDFA, the minimal pump power that is required to ensure a certain quality of the signal for each channel spacing was found. To assess the performance of the EDFA, the dependences of the maximal BER values among all the channels on the power of the detected signals for each channel spacing are compared to the same results obtained in a 16 channel WDM system with the corresponding channel spacing but without amplification. Power penalty values are evaluated at each channel spacing in respect to the solution without amplification.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115710368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Ahrens, André Sandmann, Zeliang Wang, J. McWhirter
{"title":"Polynomial matrix algorithms for broadband optical MIMO systems","authors":"A. Ahrens, André Sandmann, Zeliang Wang, J. McWhirter","doi":"10.5220/0005949400350042","DOIUrl":"https://doi.org/10.5220/0005949400350042","url":null,"abstract":"Polynomial matrix singular value decomposition (PMSVD) plays a very important role in broadband multiple-input multiple-output (MIMO) systems. It can be used to decompose a broadband MIMO channel matrix in order to recover the transmitted signals corrupted by the channel interference (CI) at the receiver. In this contribution singular value decomposition (SVD) algorithm for polynomial matrices are analyzed and compared in the application of decomposing optical MIMO channels. The bit-error rate (BER) performance is evaluated and optimized by applying bit and power allocation schemes. For our simulations, the specific impulse responses of a (2 × 2) MIMO channel, including a 1.4 km multi-mode fiber and optical couplers at both ends, are measured for the operating wavelength of 1576 nm.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123266964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Energy efficiency in social-aware D2D networks: A base station perspective","authors":"M. Höyhtyä, A. Mämmelä","doi":"10.1109/RTUWO.2016.7821865","DOIUrl":"https://doi.org/10.1109/RTUWO.2016.7821865","url":null,"abstract":"This paper studies energy efficiency in social-aware device-to-device (D2D) communications, focusing especially on base stations. The work considers multiple cooperative sharing scenarios and analyses the related energy consumption. Different types of base stations from a femtocell to macro cells and their supply power consumption is included in the analysis. The results indicate that D2D communication can be used in reducing the energy consumption of base stations even down to one third of the conventional cellular operation.","PeriodicalId":229246,"journal":{"name":"2016 Advances in Wireless and Optical Communications (RTUWO)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130520364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}