9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)最新文献_第7页

Provision resource bidding for special service provider in decoupling spaces network 解耦空间网络中为特殊服务提供商提供资源竞标

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274376

K. Wongrujira, P. Sookavatana, A. Seneviratne

{"title":"Provision resource bidding for special service provider in decoupling spaces network","authors":"K. Wongrujira, P. Sookavatana, A. Seneviratne","doi":"10.1109/APCC.2003.1274376","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274376","url":null,"abstract":"In this paper we present the design and implementation of a framework that used JavaSpaces to support a bidding service over the decoupling network. There is a high expectation and demand for a network that could support various devices. With JavaSpaces technique, the user who requested services and the provider who provided services could read, write or take an entry task to/from the space. It was possible that one service provider could not support all client application needs. Therefore, the requirement of the chaining application and finding the lowest cost of the cascade sequence were in the interested area of middle ware network for the Internet application and adaptation. In addition, we also showed that the price and cost for support specific application could turn into the bidding concept. Hence, in this paper we focused on a research in finding an application and come out with bidding cost where we implemented JavaSpaces as a middle object pool. The result was shown by a comparison of consuming time between provision read the resource node and real time read the resource node. These ideas could extend to further perform in a recursive fashion for finding specific service applications.","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133386437","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: 0

Native multicast datagram delivery using Xcast over IPv6 networks 使用Xcast在IPv6网络上传送本地多播数据报

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274268

Ki-Il Kim, Daejin Choi, Sang-Ha Kim

{"title":"Native multicast datagram delivery using Xcast over IPv6 networks","authors":"Ki-Il Kim, Daejin Choi, Sang-Ha Kim","doi":"10.1109/APCC.2003.1274268","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274268","url":null,"abstract":"While traditional multicast is scalable in the sense that they can support very large groups, there are scalability problems when network needs to support a very large number of distinct groups. This paper presents a new alternative scheme, called Xcast6+, which is an extension of Explicit Multicast (Xcast) for an efficient delivery of native multicast datagrams over IPv6 networks. The mechanism incorporates MLDv2 and a new control plane into existing Xcast, and not only does it provide the transparency of traditional multicast schemes to sources and recipients, but it also enhances the routing efficiency in networks. Since intermediate routers do not have to keep track of multicast state, it results in a more efficient and scalable mechanism to deliver native multicast datagrams. Moreover, the seamless integration of Xcast6+ in Mobile IPv6 can support multicast efficiently for mobile nodes (both sources and recipients) over IPv6 networks by avoiding tunnel avalanches and tunnel convergence. Our simulation results show distinct performance improvements of our approach. Our approach can reduce network resources when recipients are clustered in local links (i.e., \"subset-dense group\").","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132982842","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: 0

Comparison of channel capacity for MIMO-DAS versus MIMO-CAS MIMO-DAS与MIMO-CAS的信道容量比较

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274323

Cong Shen, Shidong Zhou, Yan Yao

引用次数: 2

Simulation and design of EDFAs for long-haul soliton based communication systems 远距离孤子通信系统中edfa的仿真与设计

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274302

M. Zafruullah, M. Waris, M.K. Islam

{"title":"Simulation and design of EDFAs for long-haul soliton based communication systems","authors":"M. Zafruullah, M. Waris, M.K. Islam","doi":"10.1109/APCC.2003.1274302","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274302","url":null,"abstract":"The simulation of EDFA using a long span of Er-doped fiber for the amplification of optical solitons is presented. Various parameters can be varied as a control to optimize soliton amplification. Instead of using lumped amplifiers, a distributed amplification is employed. It is possible to design EDFA for different input pulse widths depending upon the dispersion and loss of the fiber. The effective values of the pump range, fiber dispersion, doping concentration have been varied with in the recommended criterion of the on going progress in carrying out data successfully to the horizon limits. To study amplification, the FWHM of solitons is considered in pica second range only as ultra short soliton pulses suffer from various other effects of higher order dispersion, Raman effect and SSFS. The simulations worked out in this perspective are providing leverage to the existing research on conventional techniques of the signal amplification, development of the EDFAs based on the previous research, as the soliton exploitation approach for the development of EDFAs lead to cope with the long standing desire of long haul communication to pierce through the horizon. The results obtained provide a future guideline to implement them practically. The new systematic trends is available for the researchers to go ahead to explore the hidden nooks of the future optical development.","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116184207","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: 1

How to succeed in NGcN of Korea 如何在韩国NGcN取得成功

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274355

J. Won, Gilsoo Chang, Hakseong Jeon, Dong-Seung Kwon

引用次数: 0

Packet/cell loss recovery using variable FEC matrix for real time transport services over best effort networks 利用可变FEC矩阵进行最佳努力网络上实时传输服务的包/单元丢失恢复

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274274

M. Hayasaka, Luis Loyola, Tetsuya Miki

{"title":"Packet/cell loss recovery using variable FEC matrix for real time transport services over best effort networks","authors":"M. Hayasaka, Luis Loyola, Tetsuya Miki","doi":"10.1109/APCC.2003.1274274","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274274","url":null,"abstract":"Real-time services over best-effort networks, such as teleconferencing over unspecified bit rate (UBR) class asynchronous transfer mode (ATM) networks or the Internet, are expected to be in high demand in the near future as such services become more cost effective. However, cell loss caused by buffer overflow at switches is a serious problem in this service class, and is responsible for degradation of the quality of service (QoS). A promising technology for improving the QoS of best-effort networks is the recovery of lost cells by forward error correction (FEC). Conventional FEC methods utilize a FEC matrix with fixed dimensions and which is usually designed to cope with the worst case of cell loss. In this paper, a new method that provides dynamic recovery capacity to deal with the current cell loss ratio through the use of a variable-dimension FEC matrix is proposed. The scheme also takes into account the coding method of the matrix to provide data prioritization. Numerical results show that the cell loss ratio and transmission efficiency of the proposed method are superior to those of conventional methods.","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116575406","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

The performance analysis and simulation of header compression in VoIP services over cellular links 蜂窝链路上VoIP业务报头压缩的性能分析与仿真

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274437

Yichuan Wu, Jianping Zheng, Kui Huang

引用次数: 1

IPv4/IPv6 SIP interworking methods in dual-stack network 双栈组网下的IPv4/IPv6 SIP互通方式

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274275

Y. Kawarasaki, T. Shibata, T. Takahashi

引用次数: 9

Finite-difference time-domain computation of pulse propagation in relatively long nonlinear optical fiber 脉冲在较长非线性光纤中传播的时域有限差分计算

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274364

P. Kaewplung, T. Angkaew

引用次数: 0

User based network (WAN) traffic analysis 基于用户的网络(WAN)流量分析

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274281

C. Dethe, D. Wakde

引用次数: 3