Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573897
Peng Tian, Wei Huang, Zhengyuan Xu
A real-time optical camera communication (OCC) system was designed and implemented. The system jointly utilizes 4 intensity levels for each color and 3 colors of each RGB LED of a 16×16 LED array, resulting in a 64-ary color-intensity modulation (CIM) carrying on 6-bit coded information in each symbol. The LED array is refreshed at 82.5 Hz, and a FPGA controlled commercial CMOS image sensor from a mobile phone operates at a frame rate of 330 fps whose outputs are fed into a PC for real-time signal demodulation. Excluding 60 boarder LEDs and 4 spatial synchronization LEDs, the remaining 192 data-carrying LEDs are able to transmit data at an effective rate of about 95 kbps. Bit error rate below 10~3 over a communication distance up to 1.2 m is achieved without any external optical lens.
{"title":"Design and experimental demonstration of a real-time 95kbps optical camera communication system","authors":"Peng Tian, Wei Huang, Zhengyuan Xu","doi":"10.1109/CSNDSP.2016.7573897","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573897","url":null,"abstract":"A real-time optical camera communication (OCC) system was designed and implemented. The system jointly utilizes 4 intensity levels for each color and 3 colors of each RGB LED of a 16×16 LED array, resulting in a 64-ary color-intensity modulation (CIM) carrying on 6-bit coded information in each symbol. The LED array is refreshed at 82.5 Hz, and a FPGA controlled commercial CMOS image sensor from a mobile phone operates at a frame rate of 330 fps whose outputs are fed into a PC for real-time signal demodulation. Excluding 60 boarder LEDs and 4 spatial synchronization LEDs, the remaining 192 data-carrying LEDs are able to transmit data at an effective rate of about 95 kbps. Bit error rate below 10~3 over a communication distance up to 1.2 m is achieved without any external optical lens.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"14 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116730200","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573926
P. W. Berenguer, V. Jungnickel, J. Fischer
In this paper, we evaluate the potential of adaptive transmission for optical wireless communications, used together with a real-valued, DC-biased optical (DCO) orthogonal frequency-division multiplexing (OFDM) waveform. Particularly, we include frequency-selective bit- and power-loading on top of DCO-OFDM. This combination is well known as discrete multitone (DMT). We work out the significant advantage of frequency-selective rate adaptation for operation in both, low signal-to-noise ratios and non-line-of-sight scenarios, as compared to using a fixed modulation format commonly applied over all subcarriers and switching between these formats. Our evaluation is based on the channel impulse responses (CIRs) provided by the IEEE task group for the 802.15.7r1 standard. Transmission bandwidth is up to 200 MHz, as supported by modern optical wireless frontends.
{"title":"The benefit of frequency-selective rate adaptation for optical wireless communications","authors":"P. W. Berenguer, V. Jungnickel, J. Fischer","doi":"10.1109/CSNDSP.2016.7573926","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573926","url":null,"abstract":"In this paper, we evaluate the potential of adaptive transmission for optical wireless communications, used together with a real-valued, DC-biased optical (DCO) orthogonal frequency-division multiplexing (OFDM) waveform. Particularly, we include frequency-selective bit- and power-loading on top of DCO-OFDM. This combination is well known as discrete multitone (DMT). We work out the significant advantage of frequency-selective rate adaptation for operation in both, low signal-to-noise ratios and non-line-of-sight scenarios, as compared to using a fixed modulation format commonly applied over all subcarriers and switching between these formats. Our evaluation is based on the channel impulse responses (CIRs) provided by the IEEE task group for the 802.15.7r1 standard. Transmission bandwidth is up to 200 MHz, as supported by modern optical wireless frontends.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115172138","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573945
Yuan-Liang Lan, Kuochen Wang, Yi-Huai Hsu
We propose a Dynamic Load-balanced Path Optimization (DLPO) algorithm which can suit for different SDN-based data center network topologies. The proposed DLPO changes paths of flows during flow transmissions, achieves load balancing among different links, and efficiently resolves the network congestion problem in SDN-based data center networks. We also propose a priority-based flow table updating strategy to ensure that flows of a congested path will be redirected to a light-loaded path as soon as all flow tables of the associated switches in the light-loaded path have been updated successfully so as to avoid packet loss caused by changing paths of flows. The proposed DLPO is composed of two algorithms, which are multi-link DLPO algorithm and single-link DLPO algorithm. The multi-link DLPO algorithm can balance link loads in a network quickly to resolve some congested paths and the single-link DLPO algorithm can reroute flows to avoid using links with large loads to resolve congested paths that the multi-link DLPO algorithm cannot handle. Simulation results show that, compared to LABERIO, the proposed DLPO increases 18.9% and 9.5% of throughput per flow and bandwidth utilization, respectively, in the fat-tree topology, and 24.8% and 8.3% in the fully populated topology, both under a hot-spot traffic pattern.
{"title":"Dynamic load-balanced path optimization in SDN-based data center networks","authors":"Yuan-Liang Lan, Kuochen Wang, Yi-Huai Hsu","doi":"10.1109/CSNDSP.2016.7573945","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573945","url":null,"abstract":"We propose a Dynamic Load-balanced Path Optimization (DLPO) algorithm which can suit for different SDN-based data center network topologies. The proposed DLPO changes paths of flows during flow transmissions, achieves load balancing among different links, and efficiently resolves the network congestion problem in SDN-based data center networks. We also propose a priority-based flow table updating strategy to ensure that flows of a congested path will be redirected to a light-loaded path as soon as all flow tables of the associated switches in the light-loaded path have been updated successfully so as to avoid packet loss caused by changing paths of flows. The proposed DLPO is composed of two algorithms, which are multi-link DLPO algorithm and single-link DLPO algorithm. The multi-link DLPO algorithm can balance link loads in a network quickly to resolve some congested paths and the single-link DLPO algorithm can reroute flows to avoid using links with large loads to resolve congested paths that the multi-link DLPO algorithm cannot handle. Simulation results show that, compared to LABERIO, the proposed DLPO increases 18.9% and 9.5% of throughput per flow and bandwidth utilization, respectively, in the fat-tree topology, and 24.8% and 8.3% in the fully populated topology, both under a hot-spot traffic pattern.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122703017","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}
For orthogonal frequency division multiplexing (OFDM) based indoor visible light communication (VLC) systems, we show that the subcarrier channels tend to synchronize and add up to a resultant high peak signal at the leading edge of each symbol when using certain types of modulation formats. Thus, occasional non-ideal transmission conditions such as insufficient guard intervals and a dispersive channel will result in inter-symbol crosstalk. This paper presents a time domain reshuffling (TDR) technique for both DC-biased optical (DCO-) and asymmetrically clipped optical (ACO-) OFDM based VLC systems. Only by simple operations in the frequency domain, the potential high peaks can be relocated in each OFDM symbol to alleviate the crosstalk. Based on Monte-Carlo simulations, we demonstrate the statistical distribution of the signal high peak values and the complementary cumulative distribution function of the peak-to-average power ratio for comparison. By adopting the TDR method, we show that the bit error rate performance can be also improved for both DCO- and ACO-OFDM systems under occasional non-ideal transmission conditions.
{"title":"Time domain reshuffling for OFDM based indoor visible light communications","authors":"Xiaodi You, Jian Chen, Changyuan Yu, Zabih Ghassemlooy","doi":"10.1109/CSNDSP.2016.7574006","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574006","url":null,"abstract":"For orthogonal frequency division multiplexing (OFDM) based indoor visible light communication (VLC) systems, we show that the subcarrier channels tend to synchronize and add up to a resultant high peak signal at the leading edge of each symbol when using certain types of modulation formats. Thus, occasional non-ideal transmission conditions such as insufficient guard intervals and a dispersive channel will result in inter-symbol crosstalk. This paper presents a time domain reshuffling (TDR) technique for both DC-biased optical (DCO-) and asymmetrically clipped optical (ACO-) OFDM based VLC systems. Only by simple operations in the frequency domain, the potential high peaks can be relocated in each OFDM symbol to alleviate the crosstalk. Based on Monte-Carlo simulations, we demonstrate the statistical distribution of the signal high peak values and the complementary cumulative distribution function of the peak-to-average power ratio for comparison. By adopting the TDR method, we show that the bit error rate performance can be also improved for both DCO- and ACO-OFDM systems under occasional non-ideal transmission conditions.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128042649","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573919
A. Burton, Zabih Ghassemlooy, Pantelis-Daniel M. Arapoglou
This paper is about simulation of physical layer optical link for space-to-ground laser communications. Using forward error correction (FEC) schemes outlined by the Consultative Committee for Space Data Systems (CCSDS) with non-return-to-zero (NRZ), return to zero (RZ) on-off keying (OOK) and pulse position modulation (PPM); the high photon efficiency optical communications link is analysed using Matlab. Results show the degree to which modulation schemes are susceptible to atmospheric turbulence and AWG noise with and without FEC. We show that at a bit error rate of 10e-3 4-PPM offers better resiliency to atmospheric fading than OOK RZ and NRZ respectively.
{"title":"Physical layer solutions for optical communications in space","authors":"A. Burton, Zabih Ghassemlooy, Pantelis-Daniel M. Arapoglou","doi":"10.1109/CSNDSP.2016.7573919","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573919","url":null,"abstract":"This paper is about simulation of physical layer optical link for space-to-ground laser communications. Using forward error correction (FEC) schemes outlined by the Consultative Committee for Space Data Systems (CCSDS) with non-return-to-zero (NRZ), return to zero (RZ) on-off keying (OOK) and pulse position modulation (PPM); the high photon efficiency optical communications link is analysed using Matlab. Results show the degree to which modulation schemes are susceptible to atmospheric turbulence and AWG noise with and without FEC. We show that at a bit error rate of 10e-3 4-PPM offers better resiliency to atmospheric fading than OOK RZ and NRZ respectively.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132766002","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574025
Jakub Nikonowicz, M. Jessa
Cognitive radio (CR) is one of the most important challenges in contemporary communication. Because cognitive technologies are based on matching transmission parameters to the surrounding radio environment, several practical problems related to weak signal detection must be solved. These include, e.g., uncertainty of the noise variance value, the changes of this value in time and space, limited hardware resources or time of detection. All of these factors can seriously degrade system performance. The search for practically useful solutions of the encountered difficulties is therefore very important for the successful development and implementation of CR technology. This article provides an overview and comparison of chosen blind detection methods proposed for use in CR receivers. The comparison is based on simulation results, and the methods are compared in terms of detection efficiency, time complexity and robustness to changes in transmission parameters.
{"title":"Blind detection methods in cognitive radio — An overview and comparison","authors":"Jakub Nikonowicz, M. Jessa","doi":"10.1109/CSNDSP.2016.7574025","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574025","url":null,"abstract":"Cognitive radio (CR) is one of the most important challenges in contemporary communication. Because cognitive technologies are based on matching transmission parameters to the surrounding radio environment, several practical problems related to weak signal detection must be solved. These include, e.g., uncertainty of the noise variance value, the changes of this value in time and space, limited hardware resources or time of detection. All of these factors can seriously degrade system performance. The search for practically useful solutions of the encountered difficulties is therefore very important for the successful development and implementation of CR technology. This article provides an overview and comparison of chosen blind detection methods proposed for use in CR receivers. The comparison is based on simulation results, and the methods are compared in terms of detection efficiency, time complexity and robustness to changes in transmission parameters.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115043816","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573902
M. Piechowiak, P. Zwierzykowski, P. Owczarek, Michal Waslowicz
The article considers the efficiency of routing protocols for wireless mesh networks. Routing protocols are crucial element for performance of mesh networks, they ensure even flow of data packets and reduce negative influence of interferences. The article contains an overview of routing protocols used in the network mesh. As part of the research includes a comparative analysis of representative routing protocols carried out in the OMNeT++ environment. Results of simulation has been presented and compared.
{"title":"Comparative analysis of routing protocols for wireless mesh networks","authors":"M. Piechowiak, P. Zwierzykowski, P. Owczarek, Michal Waslowicz","doi":"10.1109/CSNDSP.2016.7573902","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573902","url":null,"abstract":"The article considers the efficiency of routing protocols for wireless mesh networks. Routing protocols are crucial element for performance of mesh networks, they ensure even flow of data packets and reduce negative influence of interferences. The article contains an overview of routing protocols used in the network mesh. As part of the research includes a comparative analysis of representative routing protocols carried out in the OMNeT++ environment. Results of simulation has been presented and compared.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114418398","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573941
E. Pikasis, S. Karabetsos, T. Nikas, P. Chvojka, A. Nassiopoulos, D. Syvridis
Over the recent years many modulation schemes were proposed for laser based high-speed short-range transmission over step-index plastic optical fiber (SI-POF). Among these schemes, CAP and DFT-Spread DMT demonstrated a good performance for intensity modulation direct-detection transmission via SI-POF. In this work, for the first time, we report on the progress and initial experimentation regarding the comparison of CAP and DFT-Spread DMT for transmission over 50m of 1-mm SI-POF. It is shown that CAP and DFT-Spread DMT achieve a comparable transmission rate for a given bit error rate over the same experimental configuration.
{"title":"Comparison of CAP and DFT-spread DMT for high speed transmission over 50m SI-POF","authors":"E. Pikasis, S. Karabetsos, T. Nikas, P. Chvojka, A. Nassiopoulos, D. Syvridis","doi":"10.1109/CSNDSP.2016.7573941","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573941","url":null,"abstract":"Over the recent years many modulation schemes were proposed for laser based high-speed short-range transmission over step-index plastic optical fiber (SI-POF). Among these schemes, CAP and DFT-Spread DMT demonstrated a good performance for intensity modulation direct-detection transmission via SI-POF. In this work, for the first time, we report on the progress and initial experimentation regarding the comparison of CAP and DFT-Spread DMT for transmission over 50m of 1-mm SI-POF. It is shown that CAP and DFT-Spread DMT achieve a comparable transmission rate for a given bit error rate over the same experimental configuration.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115432434","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573984
D. Krstić, S. Suljovic, Vesad Doljak, M. Stefanovic, E. Leitgeb, P. Pezzei
Macrodiversity system with selection combining diversity receiver and three microdiversity maximal ratio combining diversity receivers operating over correlated Gamma shadowed Nakagami-m multipath fading environment is considered. Moment generating function (MGF) of microdiversity MRC receivers output signals are calculated. By using these formulas, closed form expression for MGF function of macrodiversity SC receiver output signal envelope is evaluated. This result can be used for calculation the bit error probability of proposed macrodiversity system with several modulation schemes. Numerical results are presented graphically to show the influence of Nakagami-m severity parameter, Gamma shadowing severity parameter and correlation coefficient of shadowing on MGF.
{"title":"Moment generating function of macrodiversity system with three microdiversity MRC receivers in Gamma shadowed Nakagami-m fading channel","authors":"D. Krstić, S. Suljovic, Vesad Doljak, M. Stefanovic, E. Leitgeb, P. Pezzei","doi":"10.1109/CSNDSP.2016.7573984","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573984","url":null,"abstract":"Macrodiversity system with selection combining diversity receiver and three microdiversity maximal ratio combining diversity receivers operating over correlated Gamma shadowed Nakagami-m multipath fading environment is considered. Moment generating function (MGF) of microdiversity MRC receivers output signals are calculated. By using these formulas, closed form expression for MGF function of macrodiversity SC receiver output signal envelope is evaluated. This result can be used for calculation the bit error probability of proposed macrodiversity system with several modulation schemes. Numerical results are presented graphically to show the influence of Nakagami-m severity parameter, Gamma shadowing severity parameter and correlation coefficient of shadowing on MGF.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124475986","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}
Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573944
K. Fang, Kuochen Wang, Jian-Hong Wang
We propose a Fast and Load-aware Controller Failover (FLCF) for software-defined networks to resolve the single point of failure problem. The FLCF utilizes one detecting controller to collect all the other controllers' failure notifications about a failed controller so as to help the detecting controller to make the final decision. Each controller pre-computes its recovery plan and synchronizes the plan with other controllers that will take over the switches if the controller is determined failed. Using Estinet, experiment results show that the proposed FLCF has better performance in terms of failover time and controller load standard deviation than related works.
{"title":"A fast and load-aware controller failover mechanism for software-defined networks","authors":"K. Fang, Kuochen Wang, Jian-Hong Wang","doi":"10.1109/CSNDSP.2016.7573944","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573944","url":null,"abstract":"We propose a Fast and Load-aware Controller Failover (FLCF) for software-defined networks to resolve the single point of failure problem. The FLCF utilizes one detecting controller to collect all the other controllers' failure notifications about a failed controller so as to help the detecting controller to make the final decision. Each controller pre-computes its recovery plan and synchronizes the plan with other controllers that will take over the switches if the controller is determined failed. Using Estinet, experiment results show that the proposed FLCF has better performance in terms of failover time and controller load standard deviation than related works.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123567093","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}
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