• 제목/요약/키워드: throughput analysis

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5GHz Wireless LAN의 Throughput을 통한 성능 분석에 관한 연구 (Study of efficiency analysis of 5GHz wireless LAN for throughput of IP level)

  • 전찬욱;고남영
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2003년도 추계종합학술대회
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    • pp.897-903
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    • 2003
  • 본 논문에서는 Wireless LAN의 구조와 전송방식에 대해서 살펴보고, 5GHz Wireless LAN의 연구가 활발하게 이루어지고 있는 시점에서 5GHz Wireless LAN의 다양한 환경(강의실, 대강당, 사무실)에서 IP레벨의 Throughput을 통한 성능분석을 하였다.

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무선5㎓ Wireless LAN의 Throughput을 통한 성능 분석에 관한 연구 (Study of efficiency analysis of 5㎓ wireless LAN for throughput of IP level)

  • 고남영
    • 한국정보통신학회논문지
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    • 제7권7호
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    • pp.1406-1414
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    • 2003
  • 본 논문에서는 Wireless LAN의 구조와 전송방식에 대해서 살펴보고, 5㎓ Wireless LAN의 연구가 활발하게 이루어지고 있는 시점에서 5㎓ Wireless LNA의 다양한 환경(강의실, 대강당, 사무실)에서 IP레벨의 Throughput을 통한 성능분석을 하였다.

듀얼블레이드 로봇 클러스터툴의 생산성 분석 (Throughput Analysis for Dual Blade Robot Cluster Tool)

  • 유선중
    • 제어로봇시스템학회논문지
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    • 제15권12호
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    • pp.1240-1245
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    • 2009
  • The throughput characteristics of the cluster tool with dual blade robot are analyzed. Using equipment's cycle time chart of the equipment, simple analytic form of the throughput is derived. Then, several important throughput characteristics are analyzed by the throughput formula. First, utilization of the process chamber and the robot are maximized by assigning the equipment to the process whose processing time is near the critical process time. Second, rule for selecting optimal number of process chambers is suggested. It is desirable to select a single process chamber plus a single robot structure for relatively short time process and multi process chambers plus a single robot, namely cluster tool for relatively long time process. Third, throughput variation between equipments due to the wafer transfer time variation is analyzed, especially for the process whose processing time is less than critical process time. And the throughput and the wafer transfer time of the equipments in our fabrication line are measured and compared to the analysis.

Throughput Analysis of 1x EV-DO System with Multi Cells

  • Park, Wan;Park, Do-Hyung;Lee, Jun-Cheol;Lee, Sangkeun
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 ITC-CSCC -3
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    • pp.1924-1927
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    • 2002
  • In this paper the average sector throughput of lx EV-DO system is analyzed. The analysis is based on a mathematical approach rather than a field test or a computer simulation. By this analysis, the average sector throughput can be easily estimated under various conditions without complex simulations. In the typical urban environment, the estimated average throughput is 683 Kbps.

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An Analysis of Effective Throughput in Distributed Wireless Scheduling

  • Radwan, Amr
    • 한국멀티미디어학회논문지
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    • 제19권2호
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    • pp.155-162
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    • 2016
  • Several distributed scheduling policies have been proposed with the objective of attaining the maximum throughput region or a guaranteed fraction throughput region. These policies consider only the theoretical throughput and do not account the lost in throughput due to the time complexity of implementing an algorithm in practice. Therefore, we propose a novel concept called effective throughput to characterize the actual throughput by taking into account the time complexity. Effective throughput can be viewed as the actual transmitted data without including the control message overhead. Numerical results demonstrate that in practical scheduling, time complexity significantly affects throughput. The performance of throughput degrades when the time complexity is high.

High-throughput identification of chrysanthemum gene function and expression: An overview and an effective proposition

  • Nguyen, Toan Khac;Lim, Jin Hee
    • Journal of Plant Biotechnology
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    • 제48권3호
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    • pp.139-147
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    • 2021
  • Since whole-genome duplication (WGD) of diploid Chrysanthemum nankingense and de novo assembly whole-genome of C. seticuspe have been obtained, they have afforded to perceive the diversity evolution and gene discovery in the improved investigation of chrysanthemum breeding. The robust tools of high-throughput identification and analysis of gene function and expression produce their vast importance in chrysanthemum genomics. However, the gigantic genome size and heterozygosity are also mentioned as the major obstacles preventing the chrysanthemum breeding practices and functional genomics analysis. Nonetheless, some of technological contemporaries provide scientific efficient and promising solutions to diminish the drawbacks and investigate the high proficient methods for generous phenotyping data obtaining and system progress in future perspectives. This review provides valuable strategies for a broad overview about the high-throughput identification, and molecular analysis of gene function and expression in chrysanthemum. We also contribute the efficient proposition about specific protocols for considering chrysanthemum genes. In further perspective, the proper high-throughput identification will continue to advance rapidly and advertise the next generation in chrysanthemum breeding.

Throughput Analysis and Optimization of Distributed Collision Detection Protocols in Dense Wireless Local Area Networks

  • Choi, Hyun-Ho;Lee, Howon;Kim, Sanghoon;Lee, In-Ho
    • Journal of Communications and Networks
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    • 제18권3호
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    • pp.502-512
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    • 2016
  • The wireless carrier sense multiple access with collision detection (WCSMA/CD) and carrier sense multiple access with collision resolution (CSMA/CR) protocols are considered representative distributed collision detection protocols for fully connected dense wireless local area networks. These protocols identify collisions through additional short-sensing within a collision detection (CD) period after the start of data transmission. In this study, we analyze their throughput numerically and show that the throughput has a trade-off that accords with the length of the CD period. Consequently, we obtain the optimal length of the CD period that maximizes the throughput as a closed-form solution. Analysis and simulation results show that the throughput of distributed collision detection protocols is considerably improved when the optimal CD period is allocated according to the number of stations and the length of the transmitted packet.

RTP-TCP가 공존하는 네트워크의 Throughput 분석 (Throughput analysis of RTP-TCP coexistence network)

  • 김석후;채현석;최명렬
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2002년도 가을 학술발표논문집 Vol.29 No.2 (3)
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    • pp.682-684
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    • 2002
  • 본 논문에서는 RTP와 TCP가 공존하는 네트워크에서 RTP 패킷의 크기, interval,전송라인의 대역폭, Queue의 크기, delay의 변화에 따라 throughput의 특징에 대하여 알아보기 위해서 ns(network simulator)를 이용하여 RTP, TCP_Reno, TCP_Vegas로 구성된 네트워크를 구성하고 시뮬레이션을 통해서 throughput의 특징 및 원인을 분석했다.

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열차 고속 주행환경에서 LTE-R 무선통신시스템 성능 분석 (Performance Analysis of LTE-R Radio Communication Systems in High Speed Train Environment)

  • 권유철;최준성;오현서;김성철
    • 한국전자통신학회논문지
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    • 제17권4호
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    • pp.587-594
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    • 2022
  • 본 논문에서는 420km/h 고속으로 이동하는 열차 환경에서 LTE-R 무선링크 성능을 분석함에 있어 현차 시험에 제약이 있으므로 무선링크 시뮬레이션과 계측기를 이용하여 고속 이동에 따른 무선링크 Throughput 성능을 분석하였다. 성능 분석 결과 QPSK와 16QAM 변조 방식은 고속 이동으로 인한 성능 열화가 미미하지만 64QAM 변조 방식은 성능 열화가 크고 이로 인하여 Throughput 감소가 크게 발생함을 알 수 있었다.

Throughput of Coded DS CDMA/Unslotted ALOHA Networks with Variable Length Data Traffic and Two User Classes in Rayleigh Fading FSMC Model

  • Tseng, Shu-Ming;Chiang, Li-Hsin;Wang, Yung-Chung
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제8권12호
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    • pp.4324-4342
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    • 2014
  • Previous papers analyzed the throughput performance of the CDMA ALOHA system in Rayleigh fading channel, but they assume that the channel coefficient of Rayleigh fading was the same in the whole packet, which is not realistic. We recently proposed the finite-state Markov channel (FSMC) model to the throughput analysis of DS uncoded CDMA/unslotted ALOHA networks for fixed length data traffic in the mobile environment. We now propose the FSMC model to the throughput analysis of coded DS CDMA/unslotted ALOHA networks with variable length data traffic and one or two user classes in the mobile environment. The proposed DS CDMA/unslotted ALOHA wireless networks for two user classes with access control can maintain maximum throughput for the high priority user class under high message arrival per packet duration.