Pub Date : 2008-04-22DOI: 10.1109/ICACT.2008.4493973
M. Hamid, M.S. Islam, C. Hong
In this paper we propose a detection technique to identify misbehaving client in wireless mesh networks. The technique is devised based on the communication history for two communicating clients through a common set of routers. Individual trust relationship is calculated for both the clients with their common routers. Then a correlation value for each client is found and compared with a predefined threshold to determine whether a client is spurious or not. We evaluate the performance of the proposed detection technique through simulation and results show that the detection efficiency is better with small number of misbehaving clients.
{"title":"Misbehavior Detection in Wireless Mesh Networks","authors":"M. Hamid, M.S. Islam, C. Hong","doi":"10.1109/ICACT.2008.4493973","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4493973","url":null,"abstract":"In this paper we propose a detection technique to identify misbehaving client in wireless mesh networks. The technique is devised based on the communication history for two communicating clients through a common set of routers. Individual trust relationship is calculated for both the clients with their common routers. Then a correlation value for each client is found and compared with a predefined threshold to determine whether a client is spurious or not. We evaluate the performance of the proposed detection technique through simulation and results show that the detection efficiency is better with small number of misbehaving clients.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122701644","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4493957
Sangjin Jeong, M. Shin
This paper describes route optimization support for Proxy Mobile IPv6 (PMIPv6). The protocol specified in the paper leverages route optimization procedures defined in Mobile IPv6 and extend the procedures in order to apply for PMIPv6. The protocol supports route optimization for both IPv6 mobile nodes and IPv4 mobile nodes. Route optimization over IPv4 transport network is also supported.
本文介绍了对代理移动IPv6 (Proxy Mobile IPv6, PMIPv6)路由优化的支持。本文指定的协议利用了移动IPv6中定义的路由优化过程，并对该过程进行了扩展，以适用于PMIPv6。该协议既支持IPv6移动节点，也支持IPv4移动节点的路由优化。支持IPv4传输网络的路由优化。
{"title":"Route Optimization Scheme for Proxy Mobile IPv6 (PMIPv6)","authors":"Sangjin Jeong, M. Shin","doi":"10.1109/ICACT.2008.4493957","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4493957","url":null,"abstract":"This paper describes route optimization support for Proxy Mobile IPv6 (PMIPv6). The protocol specified in the paper leverages route optimization procedures defined in Mobile IPv6 and extend the procedures in order to apply for PMIPv6. The protocol supports route optimization for both IPv6 mobile nodes and IPv4 mobile nodes. Route optimization over IPv4 transport network is also supported.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122767276","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494181
M. Ab-Rahman
Optical cross add drop multiplexer (OXADM) is a newly invented device in optical networks. It is designed with a combined concept of optical cross connect (OXC) and optical add drop multiplexer (OADM) which is potentially used to increase efficiency and flexibility of optical network particularly in metropolitan ring and mesh configuration. The OXADM node focuses on providing functionalities of transport, multiplexing, routing, supervision, termination and survivability in the optical layer for both ring and mesh topologies. The main function of OXADM is to reconfigure the optical channel path while implementing add and drop function simultaneously. The designed 4-channel OXADM device is expected to have maximum operational loss of 6 dB for each channel. OXADM also provide survivability through restoration against failures by means of linear, multiplex and ring protection to both configurations. Hybrid restoration technique with OXADM enables the linear, ring and multiplex protection mechanism to be integrated in single optical network, and it will be activated according to the degree and types of failure. Degradation is expected at about 2 dB in output power with respect to normal condition in ring protection activation. The test was carried out at 2.5 Gbps with BER 1times10-10 for linear protection while BER 1times10-19 (to west) and 1times10-13 (to east) were used for ring protection. The paper also calculates the OSNR according to the percentage of network failures and span variation. The method of this study involves the building and characterizing of two OXADMs, simulating by using Optisystem and modeling them analytical. Loss characterization and measured OSNR are compared with the analytical values. The result of prototype characterization was shown in our previous work.
{"title":"Survivability Schemes in Optical Cross Add and Drop Multiplexer","authors":"M. Ab-Rahman","doi":"10.1109/ICACT.2008.4494181","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494181","url":null,"abstract":"Optical cross add drop multiplexer (OXADM) is a newly invented device in optical networks. It is designed with a combined concept of optical cross connect (OXC) and optical add drop multiplexer (OADM) which is potentially used to increase efficiency and flexibility of optical network particularly in metropolitan ring and mesh configuration. The OXADM node focuses on providing functionalities of transport, multiplexing, routing, supervision, termination and survivability in the optical layer for both ring and mesh topologies. The main function of OXADM is to reconfigure the optical channel path while implementing add and drop function simultaneously. The designed 4-channel OXADM device is expected to have maximum operational loss of 6 dB for each channel. OXADM also provide survivability through restoration against failures by means of linear, multiplex and ring protection to both configurations. Hybrid restoration technique with OXADM enables the linear, ring and multiplex protection mechanism to be integrated in single optical network, and it will be activated according to the degree and types of failure. Degradation is expected at about 2 dB in output power with respect to normal condition in ring protection activation. The test was carried out at 2.5 Gbps with BER 1times10-10 for linear protection while BER 1times10-19 (to west) and 1times10-13 (to east) were used for ring protection. The paper also calculates the OSNR according to the percentage of network failures and span variation. The method of this study involves the building and characterizing of two OXADMs, simulating by using Optisystem and modeling them analytical. Loss characterization and measured OSNR are compared with the analytical values. The result of prototype characterization was shown in our previous work.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"80 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129866292","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494043
M. Alhammouri, S. Muftic
In this paper we describe an access control model for multilevel-security documents, those structured into multiple sections based on certain security classifications. Our access control system uses XACML policies to allow documents, whose contents have varying sensitivity levels, to be created, viewed, and edited by groups that have members with varying clearance levels, while enforcing the required security constraints.
{"title":"A Design of an Access Control Model for Multilevel-Security Documents","authors":"M. Alhammouri, S. Muftic","doi":"10.1109/ICACT.2008.4494043","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494043","url":null,"abstract":"In this paper we describe an access control model for multilevel-security documents, those structured into multiple sections based on certain security classifications. Our access control system uses XACML policies to allow documents, whose contents have varying sensitivity levels, to be created, viewed, and edited by groups that have members with varying clearance levels, while enforcing the required security constraints.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126679109","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494129
S. Jos, P. Kumar, S. Chakrabarti
Code division multiple access (CDMA) schemes have been considered as attractive multiple access schemes in the second-generation (2G), third-generation (3G) and future broadband wireless systems. Orthogonal codes are integral part of any broadband cellular systems. In this paper, we studied the performance of DS-CDMA signals with Walsh-Hadamard orthogonal codes, orthogonal gold codes and quadratic-residue (QR) orthogonal codes in a quasi-synchronous transmission. The synchronization error considered is smaller than the chip duration. We evaluate the maximum synchronization error that can be tolerated so that complete error-free despreading is guaranteed for all the three orthogonal codes in the absence of additive white Gaussian noise. This provides insight in the synchronization demands for QS-CDMA systems. Also system capacity (the total bit rate which can be detected) subjected to this synchronization error has been calculated for all the three codes. It has been found that QR orthogonal codes provide maximum allowable synchronization error and system capacity as compared to other two orthogonal codes. The BER performance at different values of synchronization error is also studied. Monte-Carlo simulations have been carried out to verify the numerical results.
{"title":"Error Free Despreading Of Orthogonal Codes In Quasi-Synchronous Cellular CDMA Communication","authors":"S. Jos, P. Kumar, S. Chakrabarti","doi":"10.1109/ICACT.2008.4494129","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494129","url":null,"abstract":"Code division multiple access (CDMA) schemes have been considered as attractive multiple access schemes in the second-generation (2G), third-generation (3G) and future broadband wireless systems. Orthogonal codes are integral part of any broadband cellular systems. In this paper, we studied the performance of DS-CDMA signals with Walsh-Hadamard orthogonal codes, orthogonal gold codes and quadratic-residue (QR) orthogonal codes in a quasi-synchronous transmission. The synchronization error considered is smaller than the chip duration. We evaluate the maximum synchronization error that can be tolerated so that complete error-free despreading is guaranteed for all the three orthogonal codes in the absence of additive white Gaussian noise. This provides insight in the synchronization demands for QS-CDMA systems. Also system capacity (the total bit rate which can be detected) subjected to this synchronization error has been calculated for all the three codes. It has been found that QR orthogonal codes provide maximum allowable synchronization error and system capacity as compared to other two orthogonal codes. The BER performance at different values of synchronization error is also studied. Monte-Carlo simulations have been carried out to verify the numerical results.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126756997","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494229
Jong-Geun Park, Jin-Mee Kim, Chang-Won Ami, Y. Woo, Hoon Choi
One of the most attractive topics of today is server visualization. Sever virtualization is not a new concept. However technologies and market demand are increasing the use of server virtualization amazingly. In this paper, we consider cluster management in virtualized environment to implement the virtualizing up and down model. Thus we identify some design considerations for constructing and managing cluster. And then we show architecture to support clustering of virtual nodes based on the DMTF standards.
{"title":"Cluster Management in a Virtualized Server Environment","authors":"Jong-Geun Park, Jin-Mee Kim, Chang-Won Ami, Y. Woo, Hoon Choi","doi":"10.1109/ICACT.2008.4494229","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494229","url":null,"abstract":"One of the most attractive topics of today is server visualization. Sever virtualization is not a new concept. However technologies and market demand are increasing the use of server virtualization amazingly. In this paper, we consider cluster management in virtualized environment to implement the virtualizing up and down model. Thus we identify some design considerations for constructing and managing cluster. And then we show architecture to support clustering of virtual nodes based on the DMTF standards.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129184975","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494104
Ji Young Lee, J. Cho, Y. Won
In this paper, all-optical header processing using an injection-locked Fabry-Perot laser diode (FP-LD) for all-optical packet switching is demonstrated. Optical packets consisting of the 1.25 Gb/s optical header and the 10 Gb/s payload are put into the FP-LD of which amplitude is modulated by a control signal. When the header bit coincides with the trigger of the control, the FP-LD is injection-locked signal and the FP-LD outputs a switched-on optical signal. Otherwise, the FP-LD outputs a switched-off optical signal of which the payload is suppressed.
{"title":"All-Optical Header Processing using Direct Modulation of a Fabry-Perot Laser Diode for All-Optical Packet Switching","authors":"Ji Young Lee, J. Cho, Y. Won","doi":"10.1109/ICACT.2008.4494104","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494104","url":null,"abstract":"In this paper, all-optical header processing using an injection-locked Fabry-Perot laser diode (FP-LD) for all-optical packet switching is demonstrated. Optical packets consisting of the 1.25 Gb/s optical header and the 10 Gb/s payload are put into the FP-LD of which amplitude is modulated by a control signal. When the header bit coincides with the trigger of the control, the FP-LD is injection-locked signal and the FP-LD outputs a switched-on optical signal. Otherwise, the FP-LD outputs a switched-off optical signal of which the payload is suppressed.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123972926","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494216
M. Ab-Rahman
Optical cross add and drop multiplexer (OXADM) is a recently invented optical networks device. Designed with a purpose to combine the operational concepts of optical cross connect (OXC) and optical add-drop multiplexer (OADM), OXADM is potentially useful in increasing the efficiency and flexibility of optical networks particularly of the metropolitan ring and mesh configurations. The OXADM node focuses on providing the functions of transportation, multiplexing, routing, supervision, termination and survivability in the optical layer for both ring and mesh topologies. Thus, OXADM is particularly of use for networks which require topology migration from ring to mesh, or vice versa [4]. The main function of OXADM is to reconfigure the optical channel path while implementing add/drop function simultaneously. The 4-channel OXADM design is expected to have a maximum operational loss of 6 dB for each channel [5]. OXADM is also able to provide survivability through restoration against failures by means of linear, multiplex and ring protection to both configurations [6]. Hybrid restoration technique with OXADM enables the linear, ring and multiplex protection mechanism to be integrated in single optical network, which will be activated according to the degree and types of failure. Output power degradation during ring activation is expected to be at 2 dB with respect to normal operating condition. The test was carried out at 2.5 Gbps with BER of 1times10-10 for linear protection, while BER of 1times10-19 (to west) and BER of 1times10-13 (to east) were used for ring protection.
{"title":"Optical Network Restoration and Migration Using OXADM","authors":"M. Ab-Rahman","doi":"10.1109/ICACT.2008.4494216","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494216","url":null,"abstract":"Optical cross add and drop multiplexer (OXADM) is a recently invented optical networks device. Designed with a purpose to combine the operational concepts of optical cross connect (OXC) and optical add-drop multiplexer (OADM), OXADM is potentially useful in increasing the efficiency and flexibility of optical networks particularly of the metropolitan ring and mesh configurations. The OXADM node focuses on providing the functions of transportation, multiplexing, routing, supervision, termination and survivability in the optical layer for both ring and mesh topologies. Thus, OXADM is particularly of use for networks which require topology migration from ring to mesh, or vice versa [4]. The main function of OXADM is to reconfigure the optical channel path while implementing add/drop function simultaneously. The 4-channel OXADM design is expected to have a maximum operational loss of 6 dB for each channel [5]. OXADM is also able to provide survivability through restoration against failures by means of linear, multiplex and ring protection to both configurations [6]. Hybrid restoration technique with OXADM enables the linear, ring and multiplex protection mechanism to be integrated in single optical network, which will be activated according to the degree and types of failure. Output power degradation during ring activation is expected to be at 2 dB with respect to normal operating condition. The test was carried out at 2.5 Gbps with BER of 1times10-10 for linear protection, while BER of 1times10-19 (to west) and BER of 1times10-13 (to east) were used for ring protection.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124417811","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494165
D. Han, Jihoon Lee, Young-Min Seung, Sung-Joon Cho
Introduction of Relay Station (RS) is unavoidable and wireless RS has gained more interest for next generation mobile communication systems including Wireless Broadband (WiBro) system. Also, Multi-Input Multi-Output (MIMO) scheme is an emerging technology, offering high spectral efficiency. In this paper, we propose a system architecture applying Space Time Block Coding (STBC) algorithm in RS-Base Station (BS) link and Virtual MIMO (V-MIMO) scheme in Mobile Station (MS)-RS link based on WiBro network using wireless RS. The proposed system architecture is analyzed comparing with conventional single antenna system in uplink. As a result of simulation, the proposed system architecture outperforms the 2~3dB Bit Error Rate (BER) performance in RS-BS, MS-RS, MS-RS-BS uplink. And uplink transmission capacity improved 1.7-1.8 times. The system architecture proposed in this paper, is efficient because it can improve transmission gain and system capacity without change of MS.
中继站(RS)的引入是不可避免的，无线RS在包括无线宽带(WiBro)系统在内的下一代移动通信系统中得到了越来越多的关注。此外，多输入多输出(MIMO)方案是一种新兴的技术，具有很高的频谱效率。本文提出了一种基于无线RS的WiBro网络，在RS- base Station (BS)链路上应用STBC算法，在MS -RS链路上应用V-MIMO方案的系统架构，并在上行链路上与传统的单天线系统进行了对比分析。仿真结果表明，该系统结构优于RS-BS、MS-RS、MS-RS- bs上行链路中2~3dB的误码率(BER)性能。上行传输容量提高1.7-1.8倍。本文提出的系统架构在不改变MS的情况下提高了传输增益和系统容量，是一种高效的系统架构。
{"title":"Performance Analysis of System Architecture using Wireless Relay Station and Virtual MIMO in WiBro Uplink","authors":"D. Han, Jihoon Lee, Young-Min Seung, Sung-Joon Cho","doi":"10.1109/ICACT.2008.4494165","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494165","url":null,"abstract":"Introduction of Relay Station (RS) is unavoidable and wireless RS has gained more interest for next generation mobile communication systems including Wireless Broadband (WiBro) system. Also, Multi-Input Multi-Output (MIMO) scheme is an emerging technology, offering high spectral efficiency. In this paper, we propose a system architecture applying Space Time Block Coding (STBC) algorithm in RS-Base Station (BS) link and Virtual MIMO (V-MIMO) scheme in Mobile Station (MS)-RS link based on WiBro network using wireless RS. The proposed system architecture is analyzed comparing with conventional single antenna system in uplink. As a result of simulation, the proposed system architecture outperforms the 2~3dB Bit Error Rate (BER) performance in RS-BS, MS-RS, MS-RS-BS uplink. And uplink transmission capacity improved 1.7-1.8 times. The system architecture proposed in this paper, is efficient because it can improve transmission gain and system capacity without change of MS.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127953241","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 : 2008-04-22DOI: 10.1109/ICACT.2008.4494081
Kyung-Hyun Jang, Kitae Park, Y. Moon
Recently, MPEG-1, MPEG-2 and H.263 are still used in the industry, and more efficient video codecs such as MPEG-4 and H.264 are widely used. These video codecs provide better picture quality, higher coding efficiency, and more error robustness. However, it is difficult to apply these codecs to multi-channel environment such as DVR systems, because these codecs require high computational complexity. In order to apply MPEG-4 video codecs to multi-channel DVR systems, low-cost motion estimation method and simple quantization method are required. In this paper, we propose an MPEG-4 codec for PC-based DVR systems that provide multi-channel encoding and decoding in real-time. The experimental results show that the proposed codec can encode 24-channel in real-time at 28.5-30 frames per second.
{"title":"MPEG4 Realtime Encoder for Multi-channel DVR Systems","authors":"Kyung-Hyun Jang, Kitae Park, Y. Moon","doi":"10.1109/ICACT.2008.4494081","DOIUrl":"https://doi.org/10.1109/ICACT.2008.4494081","url":null,"abstract":"Recently, MPEG-1, MPEG-2 and H.263 are still used in the industry, and more efficient video codecs such as MPEG-4 and H.264 are widely used. These video codecs provide better picture quality, higher coding efficiency, and more error robustness. However, it is difficult to apply these codecs to multi-channel environment such as DVR systems, because these codecs require high computational complexity. In order to apply MPEG-4 video codecs to multi-channel DVR systems, low-cost motion estimation method and simple quantization method are required. In this paper, we propose an MPEG-4 codec for PC-based DVR systems that provide multi-channel encoding and decoding in real-time. The experimental results show that the proposed codec can encode 24-channel in real-time at 28.5-30 frames per second.","PeriodicalId":448615,"journal":{"name":"2008 10th International Conference on Advanced Communication Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121920479","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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