CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.最新文献

{"title":"Asymptotic weighted fair queuing (AWFQ) for IEEE 802.11 point coordination function (PCF)","authors":"Yi-Wen Lan, Jyh-cheng Chen","doi":"10.1109/CCNC.2006.1593154","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593154","url":null,"abstract":"In this paper, we present a scheduling algorithm for the centralized controller in the IEEE 802.11 standards. The proposed algorithm is specifically designed for the Point Coordination Function (PCF). Although many scheduling algo- rithms have been proposed, none of them could be directly applied to the PCF uplink scheduling. Most of the literature work focuses on downlink traffic, in which Access Point (AP) could easily gather necessary information, such as queue length, packet arrival rate, and packet delay, for packet scheduling. The scheduling for uplink traffic is more challenging because the information for scheduling is distributed in each wireless station. We propose Asymptotic Weighted Fair Queuing (AWFQ) to approximate Weighted Fair Queuing (WFQ) for uplink scheduling. In AWFQ, bandwidth is allocated dynamically according to channel condition. In addition, each wireless station will give up its transmission opportunity when confronting a poor channel condition. With the proposed scheme, the channel utilization is improved. The average packet delay is reduced as well. An attractive feature of the proposed algorithm is that it could be implemented with only minor modifications to the IEEE 802.11 standards.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124861009","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}

{"title":"MAC-enabling technologies for high-throughput wireless LAN","authors":"Huai-Rong Shao, H. Singh, C. Ngo","doi":"10.1109/CCNC.2006.1593010","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593010","url":null,"abstract":"Wireless LAN systems play an important role in today's CE applications. However, due to various MAC/PHY overheads, the throughput is severely degraded. In this paper, we discuss sev- eral MAC techniques that can improve wireless transmission effi- ciency and reliability. These techniques include frame aggrega- tion, block acknowledgment, and retransmission schemes. Using analysis and simulation, we evaluate their efficiency and through- put performance. We also discuss how these MAC techniques can meet the throughput and QoS requirements of high-quality multi- media transmission applications.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128268773","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}

{"title":"A framework for intrusion detection in heterogeneous environments","authors":"Bo Zhou, Q. Shi, M. Merabti","doi":"10.1109/CCNC.2006.1593237","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593237","url":null,"abstract":"In this paper we introduce the framework of a novel Service-oriented and User-centric Intrusion Detection System (SUIDS). It is proposed to protect ubiquitous computing environments like a smart home/office. Existing Intrusion Detection Systems (IDSs) fail to cope with such a highly heterogeneous and flexible environment due to their homogeneous system design and ineffective auditing mechanisms. Featuring a novel auditing mechanism and system architecture, SUIDS can effectively detect malicious activities of inside users. Specifically, the paper shows how network nodes are classified in order to accommodate different types of detection modules; how service specific knowledge and user profiles are used to audit users' activities and protect various networked appliances against intrusions; and how a user-centric approach is used to compose a dynamic 'defense wall' or 'quarantine' against malicious users. As a result, intrusion detection in our SUIDS is more reliable and resource-effective, with a lightweight, adaptive and heterogeneous system design. Keywords-intrusion detection; service-oriented; ubiquitous","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127116745","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}

{"title":"A SIP-based OSGi device communication service for mobile personal area networks","authors":"A. Brown, M. Kolberg, D. Bushmitch, G. Lomako, M. Ma","doi":"10.1109/CCNC.2006.1593075","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593075","url":null,"abstract":"This paper discusses the benefits of a proposed Session Initiation Protocol (SIP)-based device communication Service for deployment on a Mobile Open Services Gateway Initiative (OSGi) framework. Mobile OSGi deployment provides a gateway to a mobile user’s Personal Area Network (PAN). When the SIP Service is deployed in OSGi, it is possible to bridge multiple devices and gateways, offering device and service mobility as users traverse multiple mobile and home networks. Additionally, the SIP Service provides protocol bridging via bridging bundles and grants application layer mobility to OSGi services. In this paper, we discuss a novel architecture, based on the deployment of the SIP Service in a mobile OSGi framework, which effectively delivers PAN and home network device interoperability. Finally, we offer a use case scenario and analysis of its implementation using our proposed architecture.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127288397","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}

{"title":"OSPF-MCDS-MC: a routing protocol for multi-channel wireless ad-hoc networks","authors":"U. Lee, S. Midkiff, Tao Lin","doi":"10.1109/CCNC.2006.1593060","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593060","url":null,"abstract":"We present an innovative routing protocol that utilizes multiple channels to improve performance in a mobile ad hoc network. The basic idea of the design is to provide nodes with the ability to use multiple channels effectively so that multiple useful transmissions can occur simultaneously, thus improving network capacity. The proposed scheme requires minor changes to existing proactive or table-driven routing protocols and no modifications to current the IEEE 802.11 medium access control protocol. To avoid inefficiencies due to transmission of periodic updates in proactive routing protocols, the proposed scheme divides the network layer into control and data planes. To demonstrate the multi-channel routing scheme, we extend the OSPF-MCDS routing protocol to a multi-channel version, OSPF- MCDS-MC. Simulation results indicate that OSPF-MCDS-MC successfully exploits multiple channels to improve network capacity. The routing protocol allows the network goodput to increase in proportion to the number of available channels, even as the number of nodes and network load increase, in both single- hop and multiple-hop networks.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130577744","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}

{"title":"Hierarchical self-routing scatternet for multihop bluetooth networks","authors":"Wenzhan Song, Xiangyang Li","doi":"10.1109/CCNC.2006.1592993","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1592993","url":null,"abstract":"The paper proposes a strategy for each Bluetooth device selecting proper communication neighbors and assigning proper label, hence all nodes together form a hierarchical self-routing Bluetooth networks. Both the scatternet formation and routing protocols do not require any geometric information, and the final network topology has the following attractive properties: (1) the diameter of the scatternet is O(log(n)) and the backbone is a hop spanner; (2) the degree of each master node is bounded by a constant 7; (3) the number of piconets is close to optimal; (4) each cluster has self-routing property. Moreover, the network topology can be maintained dynamically and locally with low communication cost, and the message delivery is guaranteed even during structure updating in clusters. The network supports efficient IP-based routing through Distributed Hash Tables(DHTs). The actual routing performance on the structure is evaluated through extensive simulations, the result shows the average communication hops are indeed around log(n). Keywords— Bluetooth networks, scatternet formation, multi-hop, de Bruijn, connected dominating set, low diameter, hop spanner, degreebounded,","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130428488","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}

{"title":"WLAN call admission control strategies for voice traffic over integrated 3G/WLAN networks","authors":"A. Bazzi, M. Diolaiti, C. Gambetti, G. Pasolini","doi":"10.1109/CCNC.2006.1593235","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593235","url":null,"abstract":"Heterogeneous networks integration and interwork- ing, with particular reference to third generation (3G) cellular networks and wireless local area networks (WLANs), is a challenging issue for the early future wireless communications world. In our researches we consider the opportunity to convert those circuit switched voice flows that would be blocked by UMTS for resource saturation into voice over IP streams to be served through the WLAN connection. In order to increase voice users satisfaction when WLAN available resources are critically falling off, in this paper we investigate, by means of a simulation approach, different WLAN call admission control strategies within the context of 3G-WLAN integrated networks. I. INTRODUCTION Heterogeneous networks integration and interworking, with particular reference to third generation (3G) cellular networks and wireless local area networks (WLANs), is a challenging issue for the early future wireless communications world. Provided that the WLAN hot spot is within the 3G network coverage and that the final user is equipped with a dual mode terminal, integrating the two technologies, thus increasing the \"pool\" of available resources, would considerably increase both users satisfaction and networks utilization efficiency. In the last few years several projects were dedicated to the issue of 3G/WLAN interworking networks (e.g., (1)) and many papers appeared, investigating specific aspects mainly related to architectural/signalling issues (e.g., (2)) and vertical handover (e.g., (3)). Besides the data users exchange between UMTS and WLAN, in this paper we focused our attention on the possi- bility to serve by means of the WLAN technology those voice calls that within the hot spot region cannot be served by the 3G network (and would therefore be blocked) in case of saturation of its radio resources. Obviously a format conversion from circuit-switched (CS) voice flows into packet-switched (PS) Voice over IP (VoIP) flows (and vice versa) is needed in order to allow the radio network switching (see (4) for details on the network architecture). The benefits of 3G/WLAN interworking are here inves- tigated with reference to the Chinese TD-SCDMA UMTS This work was carried out in the framework of \"VICOM Project\" funded by MIUR. technology (5) and to the upcoming IEEE802.11e (6) WLAN technology. In this paper, in particular, the users satisfaction level provided in a realistic scenario by the integrated network is assessed by means of a dedicated simulation platform. Three simple but effective call admission control (CAC) strategies for the WLAN are implemented in our simulation platform in order to prevent WLAN overloads. Their performance have been derived and compared. The paper is outlined as follows. In section II the WLAN CAC strategies are described, in section III the scenario under investigation is introduced; in section IV and in section V the simulations settings and the related numerical results are report","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125375783","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}

{"title":"Load balancing based on velocity and position in multitier cellular system","authors":"Guangxi Zhu, Guoqin Ning, Renyong Wu, Xiaofeng Lu","doi":"10.1109/CCNC.2006.1593067","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593067","url":null,"abstract":"Efficient load balancing algorithm is indispensable to serve more mobile stations in the heterogeneous wireless networks. In this paper, we propose a load balancing algorithm based on the velocity and position of mobile station for heterogeneous multitier wireless networks consisting of macrocell system and microcell system. This algorithm is able to balance load by transferring some mobile stations with longer sojourn time from overloaded cells to overlapping heterogeneous under-loaded cells. In addition, velocity, direction of motion and local position can be used to decrease unnecessary handoffs, and high-speed mobile stations can also connect to microcell system. Simulation results of three models show that blocking probability, dropping probability and overall system utilization using the proposed load balancing algorithm are improved significantly.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126368398","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}

{"title":"Appbus: providing short term memory for mobile devices","authors":"C. Janssen, M. Pearce, S. Kollipara","doi":"10.1109/CCNC.2006.1593204","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593204","url":null,"abstract":"The increasing quality of computation and connectivity on mobile devices has motivated a need for data-sharing between resident services. Most such services rely on the user to transfer data manually between them. This approach is not only prone to input error but also creates a significant data-entry burden for the user on a mobile device. With AppBus, we envision a cooperative data-sharing facility that provides the equivalent of a “short-term memory” for the mobile device. By leveraging this transient data store, services can collaborate in a loosely-coupled manner that makes their combined operation appear more intuitive and seamless. In this paper, we describe the design and implementation of AppBus for a mobile phone and initiate a discussion on both the utility and the limitations of this paradigm in mobile computing.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126049337","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}

{"title":"The MIRACLE video search engine","authors":"D. Gibbon, Zhu Liu, B. Shahraray","doi":"10.1109/CCNC.2006.1593031","DOIUrl":"https://doi.org/10.1109/CCNC.2006.1593031","url":null,"abstract":"This paper presents some of the searching and browsing features of the MIRACLE Video Search Engine. The rapid increase in the generation and dissemination of information and entertainment in video form has created a need for video search engines that facilitate finding and browsing relevant information. MIRACLE is an ongoing project at AT&T Labs aimed at addressing this need. This video search engine combines existing metadata with content-based information that is automatically extracted from the media components, or is obtained from other sources, to achieve this goal. A Web-based user interface provides browsing mechanisms that take advantage of the user’s perceptual abilities to refine the search results. The MIRACLE search engine currently operates on an archive of more than 32,000 hours of video that have been collected and automatically indexed over a ten year period.","PeriodicalId":194551,"journal":{"name":"CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114185915","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}