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| 1 | Congestion Control of Differentiated Service Network显示文摘 | XIAO Yang KIM Kiseon | 2010 | Chinese Journal of Electronics2010，19，1： | 8 |
| 2 | Construction of protograph LDPC codes with circular generator matrices显示文摘The application of protograph low density parity check(LDPC) codes involves the encoding complexity problem.Since the generator matrices are dense,and if the positions of '1' s are irregularity,the encoder needs to store every '1' of the generator matrices by using huge chip area.In order to solve this problem,we need to design the protograph LDPC codes with circular generator matrices.A theorem concerning the circulating property of generator matrices of nonsingular protograph LDPC codes is proposed.The circulating property of generator matrix of nonsingular protograph LDPC codes can be obtained from the corresponding quasi-cyclic parity check matrix.This paper gives a scheme of constructing protograph LDPC codes with circulating generator matrices,and it reveals that the fast encoding algorithm of protograph LDPC codes has lower encoding complexity under the condition of the proposed theorem.Simulation results in additive white Gaussian noise(AWGN) channels show that the bit error rate(BER) performance of the designed codes based on the proposed theorem is much better than that of GB20600 LDPC codes and Tanner LDPC codes. | Kaiyao Wang Yang Xiao Kiseon Kim | 2011 | Journal of Systems Engineering and Electronics2011，22，5： | 5 |
| 3 | The QoS of the Edge Router based on DiffServ显示文摘Internet real-time multimedia communication brings a further challenge to Quality of Service(QoS).A higher QoS in communication is required increasingly.As a new framework for providing QoS services,Differentiated Services (DiffServ)is undergoing a speedily standardization process at the IETF.DiffServ not only can offer classified level of services,but also can provide guaranteed QoS in a certain extent.In order to provide QoS,DiffServ must be properly configured.The traditional DiffServ mechanism provides classifier for edge router to mark the different traffic streams,and then the core router uses different Drop Packet Mechanisms to drop packets or transmit data packets according to these classified markers.When multiple edge routers or other core routers transmit data packets high speedily to a single core router,the core router will emerge bottleneck bandwidth.The most valid solution to this problem is that the edge router adopts drop packet mechanism.This paper proposes an Modified Edge Router Mechanism that let the edge router achieve marking,dropping and transmitting packets of hybrid traffic streams based on DiffServ in a given bandwidth,the core router will only transmits packets but won’t drop packets.By the simulation of ns2,the modified mechanism ensure the QoS of high priority traffics and simplify the core router,it is a valid method to solve the congestion of the core router. | Zhang Nan Mao Pengxuan Xiao Yang Kiseon Kim | 2009 | China Communications2009，6，3： | 4 |
| 4 | 时滞偏微分方程系统的稳定性检验(英文)显示文摘TDPDE系统的稳定性涉及到2D拟多项式,TDPDE系统的特征多项式为2D拟多项式,而其零点为一些连续的超曲面,不再是孤立的和可分离的.这导致检验TDPDE系统的稳定性非常困难.为解决上述问题,提出一种检验TDPDE系统渐近稳定性的方法,该方法通过检验TDPDE系统对应的2D特征多项式的Hurwitz稳定性来确定TDPDE系统的渐近稳定性.该文提出的定理建立了TDPDE系统的渐近稳定性与对应的2D特征多项式的Hurwitz稳定性关系,提供了2D特征多项式(2D拟多项式)的Hurwitz稳定性检验方法.由该文结果导出具有简单检验过程的2D拟多项式的Hurwitz-Schur稳定性数值检验算法,并用实例说明其应用. | 肖扬 KIM Kiseon | 2008 | 应用科学学报2008，26，6： | 3 |
| 5 | Construction of time-frequency codes based on protograph LDPC codes in OFDM communication systems显示文摘This paper proposes a scheme to construct timefrequency codes based on protograph low density parity check (LDPC) codes in orthogonal frequency division multiplexing (OFDM) communication systems.This approach synthesizes two techniques:protograph LDPC codes and OFDM.One symbol of encoded information by protograph LDPC codes corresponds to one subcarrier,namely the length of encoded information equals to the number of subcarriers.The design of good protograph LDPC codes with short lengths is given,and the proposed protograph LDPC codes can be of fast encoding,which can reduce the encoding complexity and simplify encoder hardware implementation.The proposed approach provides a higher coding gain in the Rayleigh fading channel.The simulation results in the Rayleigh fading channel show that the bit error rate(BER) performance of the proposed time-frequency codes is as good as random LDPC-OFDM codes and is better than Tanner LDPC-OFDM codes under the condition of different fading coefficients. | Kaiyao Wang Yang Xiao Kiseon Kim | 2012 | Journal of Systems Engineering and Electronics2012，23，3： | 2 |
| 6 | Diffserv AQM algorithm for edge and core routers显示文摘The existing active queue management (AQM) algorithm acts on subscribers and edge routers only, it does not support differentiate-serve (Diffserv) quality of service (QoS), while the existing diffserv QoS has not considered the link capacities between edge routers and connected core routers. When a core router in a two layers’ network experiences congestion, the connected edge routers have no ability to adjust their access data rates. Thus, it is difficult to achieve the congestion control for the large scale network with many edge routers and core routers. To solve these problems, two difffserve AQM algorithms are proposed for the congestion control of multilayer network. One diffserv AQM algorithm implements fair link capacities of edge routers, and the other one implements unequal link capacities of edge routers, but it requires the core routers to have multi-queues buffers and Diffserv AQM to support. The proposed algorithms achieve the network congestion control by operating AQM parameters on the conditions of proposed three theorems for core and edge routers. The dynamic simulation results demonstrate the proposed control algorithms for core and edge routers to be valid. | Yang Xiao Lingyun Lu Kiseon Kim | 2010 | Journal of Systems Engineering and Electronics2010，21，6： | 2 |
| 7 | QoS-sensitive admission policy for non-real-time data packets in voice/data integrated CDMA systems显示文摘 | BAHNG Seungiae KIM Kiseon | 2003 | Computer Communications2003，26，： | 1 |
| 8 | QoS-Sensitive Admission Policy for Non-Real-Time Data Packets in Voice/Data Integrated CDMA Systems显示文摘 | KOO INSOO BAHNG SEUNGIAE KIM KISEON | 2003 | Computer Communications2003，26，7： | 1 |
| 9 | A queue length-based scheduling scheme in ATM networks显示文摘 | Hyun-Ho Yoon Hakyong Kim Changhwan Oh and Kiseon Kim | 1999 | IEEE TENCON1999，6，： | 1 |
| 10 | Multicast scheduling and resource allocation algorithms for OFDMA-based sys- tems: a survey 显示文摘 | Afolabi R O Dadlani A Kiseon K | 2013 | IEEE Communications Surveys and Tutorials2013，15，1： | 1 |
| 11 | Parameter Conditions for TCP AQM Routers Based on 2-D S-Z Domain Stability A- nalysis显示文摘 | MAO P XIAO Y KISEON K | 2010 | IEEE Communications Letters2010，14，9： | 1 |
| 12 | A New Diff Serv Edge Router with Controlled-UDP显示文摘The existing edge routers can not assign the link capacities between User datagram protocol(UDP) subscribers and Transmission control protocol(TCP) subscribers to ensure the multiple priorities traffics with Differentiate-Serve(Diff Serv). To solve the problem,a new Diff Serv edge router with Controlled-UDP(C-UDP)is proposed. The proposed Diff Serv edge router can control the data rates of UDP and TCP subscribers according to their priorities. In the proposed edge router, there are multi-queues buffers controlled by TCP Active queue management(AQM) and UDP AQM algorithms to implement fair and stable link capacities. The proposed TCP AQM and UDP AQM algorithms achieve the network congestion control and Diff Serv by operating AQM parameters on the stable conditions proposed by us. The dynamic simulation results demonstrate the proposed edge router for Diff Serv network to be valid. | XIAO Yang QU Guangzhi Kiseon Kim | 2015 | Chinese Journal of Electronics2015，24，1： | 1 |
| 13 | Strategies for the design of raptor decoding in broadcast/multicast delivery systems显示文摘 | Mla:enov T Nooshabadi S and Kiseon Kim | 2010 | [EEE Transactions on Consumer Electronics2010，56，2： | 1 |
| 14 | BER performance analysis of radio over free-space optical systems considering laser phase noise under Gamma-Gamma turbulence channels显示文摘 | Wansu Lim Changho Yun Kiseon Kim | 2009 | Opt Express2009，17，6： | 1 |
| 15 | Reliability comparison of opportunistic schedu- ling and BD-precoding in downlink MIMO systems with multiple users 显示文摘 | LEE D KISEON K | 2010 | IEEE Trans on Wireless Communications2010，9，3： | 1 |
| 16 | Distance estimation with weigh- ted lease squares for mobile beacon-based localization in wireless sensor networks 显示文摘 | EUNCHAN K KISEON K | 2010 | IEEE Signal Processing Let- ters2010，17，6： | 1 |
| 17 | A prototype for hardware-in-the- loop simulationof a distributed control architecture 显示文摘 | NITAIGOUR P M KISEON K | 2008 | IEEE Transactions on Systems Man and Cybernetics : Part C : Applica- tions and Reviews2008，38，2： | 1 |
| 18 | QoS-Sensitive Admission Policy for Non-Real-Time Data Packets in Voice/Data Integrated CDMA Systems 显示文摘 | KOO INSOO BAHNG SEUNGIAE KIM KISEON | 2003 | Computer Communications2003，26，7： | 1 |
| 19 | QoS-sensitive admission policy for non-real-time data packets in voice/data integrated CDMA systems显示文摘 | KOO INSOO BAHNG SEUNGIAE KIM KISEON | 2003 | Computer Communications2003，26，： | 1 |
| 20 | 54 × 54 - bit radix-4 multiplier based on modified booth algorithm显示文摘 | Kiseon Cho Jongon Park Jinseek Horg | 2003 | IEEE Solid-State Circuits2003，25，3： | 1 |
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