2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)最新文献_第3页

MAR: Message-aware routing for opportunistic wireless ad hoc networks 机会无线自组织网络的消息感知路由

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096662

Ming Li, Longxiang Gao, Wanlei Zhou

引用次数: 2

An efficient approach to detecting concept-evolution in network data streams 一种检测网络数据流中概念演化的有效方法

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096654

S. Erfani, S. Rajasegarar, C. Leckie

引用次数: 3

Study of UDP-based Internet traffic: Long-range dependence characteristics 基于udp的互联网流量研究:远程依赖特性

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096648

J. Jusak, R. Harris

{"title":"Study of UDP-based Internet traffic: Long-range dependence characteristics","authors":"J. Jusak, R. Harris","doi":"10.1109/ATNAC.2011.6096648","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096648","url":null,"abstract":"Increasing demand for multimedia Internet applications today has shown progressive growth of the User Datagram Protocol (UDP) as the Internet transport protocol of choice for a large number of applications. However, its statistical characteristics and behaviour, specifically in terms of scaling-dependent properties are rarely studied. In this work, we firstly study the statistical characteristics of the UDP traces in terms of its long-range dependence properties as well as its marginal distribution. Secondly, based on the wavelet-based estimation method, we shall investigate the dependence structure of the wavelet coefficients in the light of the quasi-whitening concept, and lastly we shall consider a study for estimating the Hurst parameter (the degree of self-similarity) or the power law exponent for the long-range dependent processes that are present in the UDP Internet traffic. By analysing a large set of real traffic data taken from public repositories, it is evident that UDP Internet traffic reveals as long-range dependence with considerably high non-stationary processes and exhibits non-Gaussian marginal distributions. It is also interesting to see that analysis of the statistical properties of the wavelet coefficients shows that a reduction of the long dependence range to become short dependence range is impossible to be achieved by increasing the number of vanishing moments although it is done at a very coarse scale. Thus, it can be noticed that there is no significant difference on the performance of the Hurst parameter estimation for different numbers of vanishing moments for the mother wavelet.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127470448","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

Analysis of handover failures in LTE femtocell systems LTE飞蜂窝系统切换故障分析

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096636

Hyung-Deug Bae, B. Ryu, N. Park

引用次数: 33

An experimental study on performance comparison of rate adaptation and fixed rate in IEEE 802.11g IEEE 802.11g中速率自适应与固定速率性能比较的实验研究

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096661

Dong Xia, Q. Fu

引用次数: 4

A novel distributed content replication and placement scheme for Wireless Mesh Networks 一种新的无线网状网络分布式内容复制和放置方案

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096665

Zakwan Al-Arnaout, Q. Fu, Marcus Frean

引用次数: 1

High Performance Distributed Coordination Function with QoS support in IEEE 802.11e networks IEEE 802.11e网络中具有QoS支持的高性能分布式协调功能

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096656

Yeong-Sheng Chen, M. Chuang, Fan-Chun Tseng, C. Ke

{"title":"High Performance Distributed Coordination Function with QoS support in IEEE 802.11e networks","authors":"Yeong-Sheng Chen, M. Chuang, Fan-Chun Tseng, C. Ke","doi":"10.1109/ATNAC.2011.6096656","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096656","url":null,"abstract":"IEEE 802.11e standard is specified to support QoS (Quality of Service) in wireless local area networks for multimedia traffic such as real-time audio and video streaming. It proposes two wireless network access mechanisms to support QoS: HCF Controlled Channel Access (HCCA) and Enhanced Distributed Channel Access (EDCA). EDCA is a contention-based scheme. When the network size is increased, there will be more collisions and idle slots. Therefore, the performance will degrade a lot. To cope with this problem, this study proposed a High Performance Distributed Coordination Function with QoS support (QHDCF) protocol to enhance the performance. In QHDCF, the transmitting station determines the next transmitter according a selection rule from a probability formulation perspective based on the priorities and numbers of stations in different traffic classes. Since, in the proposed QHDCF, stations do not contend for channel access, transmission collisions are reduced a lot, and hence the network throughput is enhanced. Moreover, in EDCA, the high-priority traffic will always get the transmission opportunity and therefore low-priority traffic will suffer starvation. In contrast, in QHDCF, the high-priority traffic has better transmission opportunity on a probability base and hence does not starve the low-priority traffic. Simulation results show that the proposed QHDCF protocol outperform EDCA protocol in different packet sizes and number of stations.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125934453","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

Solutions for securing broadband satellite communication 确保宽带卫星通信安全的解决方案

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096657

W. Fritsche

引用次数: 1

Performance analysis of VoIP services on the LTE network LTE网络下VoIP业务性能分析

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096638

Alia Asheralieva, J. Khan, K. Mahata

引用次数: 10

Incorporating Point of Interconnect within the Australian National Broadband Network 在澳大利亚国家宽带网内合并互连点

2011 Australasian Telecommunication Networks and Applications Conference (ATNAC) Pub Date : 2011-12-08 DOI: 10.1109/ATNAC.2011.6096655

R. Jayasinghe, M. Gregory

{"title":"Incorporating Point of Interconnect within the Australian National Broadband Network","authors":"R. Jayasinghe, M. Gregory","doi":"10.1109/ATNAC.2011.6096655","DOIUrl":"https://doi.org/10.1109/ATNAC.2011.6096655","url":null,"abstract":"The number of Point Of Interconnects (PoI) is a critical factor in the proposed Australian National Broadband Network (NBN) because there is a relationship to the Capital and Operational Expenditure. Initially a centralized model with 14 P0Is in 7 major cities was proposed and after a critical evaluation of the mode the Australian Competition and Consumer Commission proposed a decentralized option with more than 200 PoI. The two models are still being debated by the many stakeholders such as the Federal Government, service providers, backhaul access providers and the general public through the media. One of the NBN objectives is to promote innovative value added services to customers through enhanced competition amongst all service providers. The problem is to find the optimal number of PoI and their locations whilst minimizing cost and maintaining objectives. An analysis is provided in this paper of two potential traffic aggregation techniques: centralized and decentralized PoI models. A proof of concept model used to compare the two models is presented. Video streaming, Voice over Internet Protocol and File Transfer Protocol applications are used as broadband traffic and Weighted Fair Queuing was taken as the quality of service scheme.","PeriodicalId":210916,"journal":{"name":"2011 Australasian Telecommunication Networks and Applications Conference (ATNAC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126803947","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