• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.2
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• pp.67-75
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• 2004

This paper presents a buffer insertion method for RLC-class interconnect structured as a sin91e line or a tree. First, a closed form expression for the interconnect delay of a CMOS buffer driving single RLC line is represented. This expression has been derived by the n-th power law for deep submicrometer technology and occurs to be within 9 percentage of maximal relative error in accuracy compared with the results of HSPICE simulation for various RLC loads. This paper proposes a closed form expression based on this for the buffer insertion of single RLC lines and the buffer sizing algorithms for RLC tree interconnects to optimize path delays. The proposed buffer insertion algorithms are applied to insert buffers for several interconnect trees with a 0.25${\mu}{\textrm}{m}$ CMOS technology and the results are compared against those of HSPICE.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.54 no.8
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• pp.350-354
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• 2005

This paper proposes a new method for delay time calculation in RLC interconnects. This method is simple, but precise. The proposed method can calculate delay time of RLC interconnects by simple numerical formula calculation without complex moment calculation using reduced model in RLC interconnects. The results using the proposed method for RLC circuits show that average relative error is within $10\%$ in comparison with HSPICE simulation results.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.3
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• pp.111-118
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• 2013

The connection based TCP protocol provides reliable packet delivery, but it takes certain overhead compare to the connection-less UDP protocol. Thus, 3GPP devise the upper-layer RLC protocol which provides reliability based upon the UDP protocol. Consequently, each implement of a base station and/or mobile terminal require the development of the RLC protocol, and it must qualify various interoperable tests. In this paper, we implement a testbed which verifies the RLC protocol under various packet losses/inversion circumstances of networks. Finally, we propose our testbed as the RLC protocol tester for the developments.

• International Journal of Highway Engineering
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• v.14 no.6
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• pp.67-73
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• 2012

PURPOSES : This study deals with the effects on the installation of RLC(Red Light Camera). The objective is to analyze the effects of accident reduction after the installation of RLC. METHODS : In pursuing the above, the study uses the 703 accident data occurred at the 64 intersections which RLC are installed or not installed. RESULTS : The main results are as follows. First, Poisson RLC accident model developed in this study is analyzed to be statistically significant. Second, using the above developed model, 33 intersections among 40 intersections are predicted to have the decreasing effects of accidents after the installation of RLC. Finally, the reduction effects are analyzed to be affected by ADT and the number of left-turn lane. CONCLUSIONS : This study is expected to improve the efficiency of RLC and to help in decision-making of RLC installation.

• 전기의세계
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• v.22 no.2
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• pp.40-44
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• 1973

A method for obtaining state equation for nonlinear time-varying RLC networks is presented. The nonlinear time-varying RLC elements are decomposed by using Murata method to formulate nonlinear state equation. A nonlinear time-varying RLC network containing twin tunnel diode is solved as an example. In consequence of solving the examjple, simple methods are presented for revising the original network model so that the formulation of state equation is simplified.

• Proceedings of the IEEK Conference
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• 2004.06b
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• pp.565-568
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• 2004

This paper proposes effective method for delay estimation in RLC interconnects. This method is simple, but precise. The results using the proposed method for RLC circuits show that absolute average relative error is within $7\%$ with the exception of first node in comparison with HSPICE results.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06d
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• pp.440-443
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• 2008

WCDMA 시스템에서 radio link간에 data를 주고 받고 신뢰성 있는 data를 검증하는 layer가 RLC이다. RLC에서는 전송 측에서 전송한 data가 수신 측에 잘 전송이 되었는지 status report를 확인을 받고 전송이 이루어지지 않았을 경우 재전송을 한다. 재전송 메커니즘에는 poll 및 status 관련 timer가 존재하면 이러한 파라미터값을 적절히 사용하지 않으면 불필요한 data의 재전송으로 인한 radio resource 낭비 및 시스템 throughput에 영향을 준다.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.75.1-75
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• 2002

Several model order reduction methods for large RLC circuits have been developed in the last few years. Krylop subspace based methods are extremely effective for generating the low order models of large system but there is no optimal theory for the resulting models. Alternatively, methods based truncated balanced realization have an optimality property but are too computationally expensive to use on complicated problems such as large RLC circuits. In this paper, we present a method for improving time domain response of reduced order RLC circuits. The method used here is based on combing Krylop subspace based method and truncated balanced realization method plus residualization. The metho...

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2009.11a
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• pp.187-190
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• 2009

네트워크 코딩 중 RLC (random linear coding)은 다양한 연구들에서 이미 그 효용성이 입증되었으며 실제 유/무선 네트워크 환경에서 RLC를 적용하는 연구들이 최근 활발하게 진행되고 있다. RLC는 간단한 방법론적인 특성과 그 효용성으로 인해 많은 관심을 받고 있지만, 실제 환경에서 RLC 디코딩 과정이 요구하는 높은 성능 복잡도로 인하여 실용성에 한계를 가진다. 이러한 상황에서 최근 병행 방법 (Parallelized method)을 이용해 RLC 디코딩 과정의 복잡도를 개선하고 이를 실제적인 비디오 전송에 적용하는 연구들이 진행되고 있다. 본 논문에서는 이러한 연구들과 더불어 무선 환경에서의 실시간 비디오 전송을 위한 비디오의 특성을 고려하는 RLC 기반의 실시간 비디오 전송 시스템을 제안한다. 또한 제안한 시스템 실험적으로 구현하고, 이를 실제 무선 네트워크 환경에서 검증하였다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.10 no.1
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• pp.1-15
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• 2011

The RLC systems is one of the intelligent transportation systems that has gained a nation-wide support for last decades and being installed to discourage motorists from running the red lights at signalized intersections. It is taken for granted that the RLC will provide motorists with increased safety, so that their installments are always justifiable. However, in order to acquire more efficiency and wider supports from the general public in future RLC installments, an improved methodology for analyzing the effects of the RLC systems is required. In order to satisfy this requirement, this research performed the following tasks. First, the number of signal violations after the RLC systems were investigated in order to check its resulting effects. Second, the number of crashes after the RLC systems were collected and compared with the number of signal violations. Third, a statistical analysis was carried out to develop the relationships between the signal violations and the crashes based on negative binomial distribution. The analysis revealed that the number of crashes has a close relationship with the RLC placement, traffic volume, vehicle speed, the number of phases, and the number of lanes for major approaches. Finally, based on the results found in this analysis, this research presents a methodology for analyzing the safety effects of placing the RLC that should be of service when investigating the economic consequences of the RLC systems.