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2nd International Conference on Computer Science and Network Technology (ICCSNT)

作者： Li Rui-xin Zhao Shang-hong Li Yong-jun Kang Qiao-yan Wei Wei Air Force Engn Univ Sch Informat & Aviat Xian Peoples R China

ISBN: (纸本)9781467329644;9781467329637

Aiming at satellite optical network and optical switching, we bring forward an assembly algorithm for satellite onboard optical switching. It can regulate the assembly threshold on the basis of traffic flow of edge node, then achieve intelligent assembly. The simulation result shows that the algorithm improves the packet loss ratio and delay, and its complexity is not high, so it is suitable for satellite optical network.

关键词： satellite optical communication onboard optical switching assembly algorithm adaptively

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Research of On-Board Optical Burst Switching Weight-weighted Round Robin assembly algorithm Based on the QoS Guarantee 15

Research of On-Board Optical Burst Switching Weight-weighted...

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15th International Conference on Optical Communications and Networks (ICOCN)

作者： Liao, Shangzhi Zhang, Qi Tian, Qinghua Tao, Ying Liu, Bo Liu, Naijin Shen, Yufei Chen, Dong Tian, Feng Wang, Houtian Xin, Xiangjun BUPT Sch Elect Engn Beijing 100876 Peoples R China

ISBN: (纸本)9781509034918

In order to solve the problem of on-board optical burst switching assembly algorithm cannot realize completely QoS guarantee, an on-board optical burst switching weight-weighted round robin assembly algorithm based on the QoS guarantee(QWRRA) is proposed in this paper. In this assembly algorithm, IP packet will be inserted in different queue according to the different destination and QoS level when arrive at edge node LEO, the assemble scheduler removes the IP packet from the queue according to the weight-weighted round robin mechanism and assembles the IP packet. When the assemble scheduler generates a burst data packet, it will detect the length of each queue, and change the weights of the queue. Simulation studies the transmission delay and throughput performance of the algorithm, then compared with the assembly algorithm based on mixed threshold and round-robin scheme(FZTFR) and assembly algorithm based on maximum length and maximum time(MSMAP). The results show that the proposed algorithm improves the transmission quality of high priority IP packet and guarantees the transmission of lower level IP packet at the same time.

关键词： on-board switching optical burst switching QoS weight-weighted round robin assembly algorithm

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Space-based Optical Burst Switching assembly algorithm Based on QoS Adaption 11

Space-based Optical Burst Switching Assembly Algorithm Based...

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IEEE 11th International Conference on Communication Software and Networks (ICCSN)

作者： Wang, Yuqi Chen, Te Zhou, Na China Acad Space Technol Inst Telecommun Satellite Beijing Peoples R China

ISBN: (纸本)9781728121840

In order to improve the performance and quality of service (QoS) guarantee of space-based optical burst switching networks, this paper proposes a burst assembly algorithm appropriate for on-board optical switching, which adaptively adjusts the time threshold according to the QoS priority to reduce the assembly time delay of the high-QoS services without extra overhead. The simulation results indicate that compared with the traditional assembly algorithm based on hybrid threshold, the assembly time delay of high-QoS services can be reduced by 2.81%-44.68%.

关键词： on-board optical burst switching QoS adaptive assembly algorithm assembly time delay

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Improvement of ACL assembly algorithm 2

Improvement of ACL Assembly Algorithm

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2nd International Conference on System Reliability and Safety (ICSRS)

作者： Xue, Chen Qin, Tao Wu, Xiao Bi, Hui Wang, Zhonghua Coordinat Ctr China Natl Comp Network Emergency Response Tech Team Beijing Peoples R China

ISBN: (纸本)9781538633229

To prevent harmful information through ISP's firewall, major technical measures are filtering technology and classification access. ACL assembly technology can effectively achieve the effect of fine filtering and restricted access, so the network equipment with the application of ACL assembly technology is a new research direction. This paper briefly introduces the basic principles and development of ACL assembly, and focuses on the matching performance of ACL assembly. An improved NP+ TCAM-based ternary bitmap matching algorithm is proposed to effectively minimize the number of times of matching when assembling ACLs. The test data suggest that this algorithm effectively improves the real-timeliness of correlation matching.

关键词： ACL precision filtering assembly algorithm access strategy ternary bitmap search

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A data burst assembly algorithm in optical burst switching networks

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ETRI JOURNAL 2002年第4期24卷 311-322页

作者： Oh, SY Hong, HH Kang, MH Informat & Commun Univ Taejon South Korea ETRI Opt Packet Router Team Taejon South Korea

Presently, optical burst switching (OBS) technology is under study as a promising solution for the backbone of the optical Internet in the near future because OBS eliminates the optical buffer problem at the switching node with the help of no optical/electro/optical conversion and guarantees class of service without any buffering. To implement the OBS network, there are a lot of challenging issues to be solved. The edge router, burst offset time management, and burst assembly mechanism are critical issues. In addition, the core router needs data burst and control header packet scheduling, a protection and restoration mechanism, and a contention resolution scheme. In this paper, we focus on the burst assembly mechanism. We present a novel data burst generation algorithm that uses hysteresis characteristics in the queueing model for the ingress edge node in optical burst switching networks. Simulation with Poisson and self-similar traffic models shows that this algorithm adaptively changes the data burst size according to the offered load and offers high average data burst utilization with a lower timer operation. It also reduces the possibility of a continuous blocking problem in the bandwidth reservation request, limits the maximum queueing delay, and minimizes the required burst size by lifting up data burst utilization for bursty input IP traffic.

关键词： .offset Optical Internet optical packet optical burst data burst Switching Networks assembly algorithm Se-yoon Router Team burst switching OBS OBS network burst generation

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Enhanced Fast Recovery Dynamic assembly Period algorithm for TCP over OBS Networks 1

Enhanced Fast Recovery Dynamic Assembly Period Algorithm for...

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1st International Conference on Software, Systems and Information Technology, SSITCON 2024

作者： Balamurugan, A.M. Sai Ravi Ganesh, V. Prinston, R. St. Joseph's College of Engineering Department of Electronics and Communication Engineering Chennai India

ISBN: (纸本)9798350352931

assembly algorithm plays a vital role in the functionality of OBS networks. In this article, the fixed and dynamic assembly period algorithms are analyzed and also, we proposed Enhanced Fast Recovery dynamic assembly period algorithm (EFRDAP) to decrease the burst loss probability. In contrast, the proposed algorithm is simulated and contrasted with the fixed and dynamic assembly period algorithms. From the results it is evident that the proposed EFRDAP algorithm gives better performance in the aspect of reduction in burst dropping rate and increase in throughput. © 2024 IEEE.

关键词： assembly algorithm dynamic assembly period enhanced fast recovery dynamic assembly algorithm(EFRDAP) OBS networks throughput

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Optical packet assembly algorithms considering switching time

Optical packet assembly algorithms considering switching tim...

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Conference on Network Architectures, Management and Applications V

作者： Yang, Junjie Li, Jie Shanghai Univ Elect Power Fac Comp & Informat Engn Shanghai 200090 Peoples R China ZTE Corp Shanghai Res & Dev Ctr Shanghai 201203 Peoples R China

ISBN: (纸本)9780819469472

Optical packet assembly algorithms have great effects on the performances of optical packet switching network. When the granularity of an optical packet is almost the same as the switching time of an optical switch, optical packet assembly algorithms have to be modified. For this purpose, in this paper, two improved assembly algorithms, i.e., Threshold-Based-ST and Timer-Based-ST are proposed. The performances of the optical packet switch are evaluated by simulation experiments.

关键词： optical packet switching assembly algorithm switching time

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Recent Advances in assembly of Complex Plant Genomes

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Genomics, Proteomics & Bioinformatics 2023年第3期21卷 427-439页

作者： Weilong Kong Yibin Wang Shengcheng Zhang Jiaxin Yu Xingtan Zhang Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China

Over the past 20 years,tremendous advances in sequencing technologies and computational algorithms have spurred plant genomic research into a thriving era with hundreds of genomes decoded already,ranging from those of nonvascular plants to those of flowering ***,complex plant genome assembly is still challenging and remains difficult to fully resolve with conventional sequencing and assembly methods due to high heterozygosity,highly repetitive sequences,or high ploidy characteristics of complex ***,we summarize the challenges of and advances in complex plant genome assembly,including feasible experimental strategies,upgrades to sequencing technology,existing assembly methods,and different phasing ***,we list actual cases of complex genome projects for readers to refer to and draw upon to solve future problems related to complex ***,we expect that the accurate,gapless,telomere-totelomere,and fully phased assembly of complex plant genomes could soon become routine.

关键词： Complex plant genome assembly algorithm Telomere-to-telomere genome Haplotype-resolved assembly Sequencing technology

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Improved OBS burst assembly with a buffer safety space in unit input bit rate

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PHOTONIC NETWORK COMMUNICATIONS 2006年第3期11卷 313-321页

作者： Li, L Zhang, MD Sun, XH Southeast Univ Dept Elect Engn Nanjing 210096 Peoples R China MIT Elect Res Lab Cambridge MA 02139 USA

A burst assembly scheme at the edge routers in optical burst switched networks (OBSNs) is presented for setting up more universal, realistic, and high-powered networks. For the first time, the concept of unit input bit rate is introduced to improve universality. In addition, various factors limiting burst length are discussed, while considering service requirement and hardware architectures. Then, a novel burst assembly algorithm with a buffer safety space is proposed. Based on the above, the assembly process in optical burst switching at edge routers is simulated, and its influence on burst creation, burst length distribution, packet loss ratio, total output data, and valid data ratio are discussed. The results show that the scheme can provide more efficient QoS guarantee in optical burst switched networks, even for 32 random packet sources at an edge router, the packet loss ratio is to 5 x 10(-5), and the valid data ratio reaches 99.7%.

关键词： optical burst switching assembly algorithm self-similar traffic buffer safety space unit input bit rate

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On using optical maps for genome assembly

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GENOME BIOLOGY 2011年第1-Sup期12卷 23-23页

作者： Lin, Henry Pop, Mihai Univ Maryland Ctr Bioinformat & Computat Biol College Pk MD 20742 USA

P41

关键词： Genome assembly Large Graph Final assembly assembly algorithm Mapping Technology

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