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2006 Asia-Pacific Conference on Communications最新文献

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Adaptive Power Control on Transmission Rate Guaranteed Data Services in a WCDMA System WCDMA系统中传输速率保证数据业务的自适应功率控制
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255803
JingXian Mei, K. Chung
{"title":"Adaptive Power Control on Transmission Rate Guaranteed Data Services in a WCDMA System","authors":"JingXian Mei, K. Chung","doi":"10.1109/APCC.2006.255803","DOIUrl":"https://doi.org/10.1109/APCC.2006.255803","url":null,"abstract":"A robust mobile radio scheduling service must be able to withstand multipath fading, which causes error rate to fluctuate over time. To allow the system to maximize the channel utilization while guarantying the QoS for data service, a hybrid resource allocation scheme that combines power control and fair queuing procedures is proposed for a WCDMA system. In the proposed scheme, resource allocation fairness may be traded off with channel utilization using a power control procedure. This paper presents the performance of the proposed protocol under different channel conditions and parameter settings. It is shown that the scheduling scheme is able to provide a balance between the channel efficiency and the resource allocation fairness","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115600439","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
IPv6 Experiments in Deploying and Accessing Services from Home Networks IPv6在家庭网络部署和访问服务中的实验
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255794
B. Silverajan, K. Huhtanen, J. Harju
{"title":"IPv6 Experiments in Deploying and Accessing Services from Home Networks","authors":"B. Silverajan, K. Huhtanen, J. Harju","doi":"10.1109/APCC.2006.255794","DOIUrl":"https://doi.org/10.1109/APCC.2006.255794","url":null,"abstract":"New networking challenges are arising in home networks which will host advanced services in the future. In this paper, we look at home networks as they are managed today, and attempt to identify difficulties that will arise in future when advanced usage is desired. We discuss how IPv6 and standardised IPv6 transition technologies assist in deploying advanced services from home networks. Our practical experiences and experiments with bringing IPv6 to home networks using 6 to 4, building an experimental prototype home gateway device, as well as deploying image sharing, data and streaming audio services from these networks are detailed","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"57 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120999987","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
Combined Eigen-beamforming and Power Allocation for Spatial Multiplexing over Correlated Channels 相关信道上空间复用的联合本征波束形成和功率分配
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255953
Wei Wang, R. Jin, Jiaqiang Li, Jun-ping Geng, D. Jiang
{"title":"Combined Eigen-beamforming and Power Allocation for Spatial Multiplexing over Correlated Channels","authors":"Wei Wang, R. Jin, Jiaqiang Li, Jun-ping Geng, D. Jiang","doi":"10.1109/APCC.2006.255953","DOIUrl":"https://doi.org/10.1109/APCC.2006.255953","url":null,"abstract":"In this paper, an eigen-beamforming (E-BF) technology combined with power allocation is proposed to improve the performance of spatial multiplexing (SM) system in the presence of spatial fading correlation. This hybrid scheme requires only knowledge of the transmit correlation matrix and does not necessitate frequent updates. A simple closed-form expression for power allocation is derived. Simulations demonstrate the effectiveness of the proposed method","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123563790","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
Time-Frequency Distribution Based on Bi-directional Gaussian kernel and its application in instantaneous frequency estimation 基于双向高斯核的时频分布及其在瞬时频率估计中的应用
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255954
Jiaqiang Li, R. Jin, Wei Wang, Jun-ping Geng, X. Rui, Guomin Yang
{"title":"Time-Frequency Distribution Based on Bi-directional Gaussian kernel and its application in instantaneous frequency estimation","authors":"Jiaqiang Li, R. Jin, Wei Wang, Jun-ping Geng, X. Rui, Guomin Yang","doi":"10.1109/APCC.2006.255954","DOIUrl":"https://doi.org/10.1109/APCC.2006.255954","url":null,"abstract":"In this paper, a kernel based on bi-directional Gaussian function is proposed to compute time-frequency distribution (TFD) of non-stationary signals. By controlling two parameters of the kernel in time lag and frequency lag directions, the new distribution makes a good improvement in time-frequency resolution and avoids the influence of cross terms. The application in instantaneous frequency (IF) estimation also demonstrates the distribution effective. Simulation results show that the TFD has good performance","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121913506","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
A Novel Handover Scheme for Improving the Performance of WLANs based on IEEE802.11 一种改进基于IEEE802.11的无线局域网性能的切换方案
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255784
T. Manodham, M. Hayasaka, Tetsuya Miki
{"title":"A Novel Handover Scheme for Improving the Performance of WLANs based on IEEE802.11","authors":"T. Manodham, M. Hayasaka, Tetsuya Miki","doi":"10.1109/APCC.2006.255784","DOIUrl":"https://doi.org/10.1109/APCC.2006.255784","url":null,"abstract":"Recently, new technologies improve WLANs to provide high quality of service (QoS) and support real time applications. In this paper, we improve network efficiency in terms of reducing the latency time in handover process and support traffic load sharing among neighbor access points (APs). We neglect both detection phase and search phase in the conventional handover scheme by proposing a pre-active scan phase, which works during normal connectivity. This phase will scan for the information of neighbor APs, which in turn is used to decide whether to perform a handover or not. The results from our simulation show the proposed handover scheme is more effective than the conventional one in terms of providing low latency time and support traffic load sharing among neighbor APs","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121999591","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: 10
Average Performance of Minimum Estimation and Combining Generalized Selection Combining in Cellular Systems 蜂窝系统中最小估计与组合广义选择组合的平均性能
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255918
Kyu-Sung Hwang, Young-Chai Ko, M.-S. Alouini, Hong-Chuan Yang
{"title":"Average Performance of Minimum Estimation and Combining Generalized Selection Combining in Cellular Systems","authors":"Kyu-Sung Hwang, Young-Chai Ko, M.-S. Alouini, Hong-Chuan Yang","doi":"10.1109/APCC.2006.255918","DOIUrl":"https://doi.org/10.1109/APCC.2006.255918","url":null,"abstract":"This paper presents the average performance of the adaptive minimum estimation-combining generalized selection combining (MEC-GSC) scheme when used in a cellular deployment. In evaluating the performance, we consider a practical cellular environment in which we adopt log-normal shadowing for the local mean on top of Rayleigh fading, under the assumption that a user equipped with MEC-GSC is located uniformly over a cell of circular shape. Our numerical and simulation results show that the scheme under consideration considerably reduces the average receiver complexity of channel estimation and the average power drain from the battery while satisfying the desired performance requirement","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128295986","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
Proposal of a Robust Zone-based Hierarchical Routing Method for Ad Hoc Networks 一种基于区域的Ad Hoc网络鲁棒分层路由方法的提出
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255922
K. Aburada, K. Morita, N. Okazaki, S. Tomita, M. Park
{"title":"Proposal of a Robust Zone-based Hierarchical Routing Method for Ad Hoc Networks","authors":"K. Aburada, K. Morita, N. Okazaki, S. Tomita, M. Park","doi":"10.1109/APCC.2006.255922","DOIUrl":"https://doi.org/10.1109/APCC.2006.255922","url":null,"abstract":"Ad hoc routing protocols can be divided into two categories. One is proactive schemes, the other is reactive schemes. Two schemes have advantage and disadvantage each other. There are hybrid schemes which are good mix of proactive schemes and reactive schemes. In hybrid schemes, nodes maintain the complete routing information of particular area only. Outside of this area, a node search for a route only when it needs to forward a packet. In consequence, the communication overhead is reduced zone-based hierarchical link state (ZHLS) routing protocol is proposed as a hybrid scheme. However, ZHLS take time to search new route when route is disconnected because it search only one route. In particular, real-time application is severely-impacted by this delay. For this reason, it is necessary to construct multiple routes as backup route. In this paper, we propose multiple-route zone-based hierarchical source routing (called MR-ZHSR) scheme that extends ZHLS routing protocol to construct multi-path routes","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129155559","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: 7
A Logical Topology Design with Tabu Search in IP over WDM Optical Networks IP over WDM光网络的禁忌搜索逻辑拓扑设计
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255821
Gilhyon Lee, Sugang Xu, Yoshiaki Tanaka
{"title":"A Logical Topology Design with Tabu Search in IP over WDM Optical Networks","authors":"Gilhyon Lee, Sugang Xu, Yoshiaki Tanaka","doi":"10.1109/APCC.2006.255821","DOIUrl":"https://doi.org/10.1109/APCC.2006.255821","url":null,"abstract":"Given a static traffic condition, the motivation of logical topology design in IP over WDM networks is to optimize the network resource utilization and improve network performance. The objectives of the optimization can be to minimize network congestion or to reduce packet delay in the networks. The logical topology design for IP over WDM networks can be decomposed into several subproblems, some of those subproblems have been proven to be NP-hard problems, and many heuristic algorithms have been proposed to find the near optimal solutions. Our research effort has been put into the investigation of different heuristic algorithms for the logical topology design problem. Using an indirect neighbour discovery method to change the logical topology of the network, several simulated annealing and genetic algorithms for logical topologic design problem in WDM networks have been proposed in our previous researches. In this paper, a tabu search (TS) method to resolve the logical topology design problem is proposed. Our motivation is to find a feasible meta-heuristic algorithm for logical topology design in IP over WDM networks","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124760932","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: 3
Inverted-F Antenna for Mobile Communication Part-II 用于移动通信的倒f天线(第二部分)
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255879
G. Qasim, Hyung-Jin Choi
{"title":"Inverted-F Antenna for Mobile Communication Part-II","authors":"G. Qasim, Hyung-Jin Choi","doi":"10.1109/APCC.2006.255879","DOIUrl":"https://doi.org/10.1109/APCC.2006.255879","url":null,"abstract":"The inverted F-antennas are the popular and extensively used in mobile handsets. Due to compactness, small size and conformal nature these can be easily mounted anywhere in the handsets. The hybrid finite element method (FEM) in conjunction with finite difference time domain (FDTD) using modified equivalent conducting surface boundary is implemented to investigate the characteristics of IFA at 1800 MHz frequency. FEMLAB and FORTRAN 90 are used to model the antenna along with scatterer with low reflecting material for the purpose to truncate the fields above the ground plane and antenna. The simulation results found sufficient good to predict the antenna performance are presented. The design confirmed the implementation of the hybrid FEM-FDTD numerical technique","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130356346","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
Logical Cascaded Private Subnet - A Novel Scheme for Optical Burst Switching Networks under Self-Similar Traffic 逻辑级联专用子网——自相似业务下光突发交换网络的一种新方案
2006 Asia-Pacific Conference on Communications Pub Date : 2006-12-11 DOI: 10.1109/APCC.2006.255819
L. Shan, Linzhen Xie, Zhengbin Li, A. Xu
{"title":"Logical Cascaded Private Subnet - A Novel Scheme for Optical Burst Switching Networks under Self-Similar Traffic","authors":"L. Shan, Linzhen Xie, Zhengbin Li, A. Xu","doi":"10.1109/APCC.2006.255819","DOIUrl":"https://doi.org/10.1109/APCC.2006.255819","url":null,"abstract":"Many recent studies have convincingly demonstrated that network traffic exhibits a noticeable self-similar nature which has a considerable impact on network performance. Therefore, we present a novel scheme for optical burst switching (OBS) networks, called logical cascaded private subnet. We define the concept of `canoe' relative to `cluster' in self-similar traffic, and introduce a new device named payload segregator at the edge node as a gateway to the core node in OBS networks. According to the changes in the edge node framework, we put forward the concept of cluster private subnet and canoe private subnet in the core node correspondingly. Performance study indicates that, the new scheme is robust under self-similar traffic","PeriodicalId":205758,"journal":{"name":"2006 Asia-Pacific Conference on Communications","volume":"368 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114863016","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
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