2008 10th International Conference on Advanced Communication Technology最新文献_第2页

Misbehavior Detection in Wireless Mesh Networks 无线Mesh网络中的错误行为检测

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4493973

M. Hamid, M.S. Islam, C. Hong

引用次数: 9

Route Optimization Scheme for Proxy Mobile IPv6 (PMIPv6) 代理移动IPv6路由优化方案(PMIPv6)

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4493957

Sangjin Jeong, M. Shin

引用次数: 15

Survivability Schemes in Optical Cross Add and Drop Multiplexer 光交叉加丢复用器的生存性方案

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494181

M. Ab-Rahman

{"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}

引用次数: 6

A Design of an Access Control Model for Multilevel-Security Documents 多级安全文档访问控制模型的设计

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494043

M. Alhammouri, S. Muftic

引用次数: 5

Error Free Despreading Of Orthogonal Codes In Quasi-Synchronous Cellular CDMA Communication 准同步蜂窝CDMA通信中正交码的无差错扩频

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494129

S. Jos, P. Kumar, S. Chakrabarti

{"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}

引用次数: 2

Cluster Management in a Virtualized Server Environment 虚拟化服务器环境中的集群管理

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494229

Jong-Geun Park, Jin-Mee Kim, Chang-Won Ami, Y. Woo, Hoon Choi

引用次数: 10

All-Optical Header Processing using Direct Modulation of a Fabry-Perot Laser Diode for All-Optical Packet Switching 在全光分组交换中使用法布里-珀罗激光二极管直接调制的全光报头处理

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494104

Ji Young Lee, J. Cho, Y. Won

引用次数: 0

Optical Network Restoration and Migration Using OXADM 基于OXADM的光网络恢复与迁移

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494216

M. Ab-Rahman

{"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}

引用次数: 4

Performance Analysis of System Architecture using Wireless Relay Station and Virtual MIMO in WiBro Uplink WiBro上行链路中采用无线中继站和虚拟MIMO的系统架构性能分析

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494165

D. Han, Jihoon Lee, Young-Min Seung, Sung-Joon Cho

引用次数: 1

MPEG4 Realtime Encoder for Multi-channel DVR Systems 多通道DVR系统的MPEG4实时编码器

2008 10th International Conference on Advanced Communication Technology Pub Date : 2008-04-22 DOI: 10.1109/ICACT.2008.4494081

Kyung-Hyun Jang, Kitae Park, Y. Moon

引用次数: 1