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A Distributed Channel Assignment Algorithm for Uncoordinated WLANs 非协调无线局域网的分布式信道分配算法
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421840
Xiaonan Yue, C. Wong, S. Chan
{"title":"A Distributed Channel Assignment Algorithm for Uncoordinated WLANs","authors":"Xiaonan Yue, C. Wong, S. Chan","doi":"10.1109/CCNC.2010.5421840","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421840","url":null,"abstract":"IEEE 802.11 WLANs are becoming more and more popular in homes and urban areas. As opposed to traditional WLANs, the access points (APs) in these networks are often deployed by network non-specialists in an uncoordinated manner, leading to unplanned topology, interference and unsatisfactory throughput performance. \u0000 \u0000We consider in this paper a distributed channel assignment algorithm for uncoordinated WLANs, where APs can self-configure their operating channels to minimize interference. We propose an efficient, simple and distributed algorithm termed CACAO (Client-Assisted Channel Assignment Optimization). In CACAO, an AP makes use of the traffic information fed back by its clients to make channel assignment decision. This leads to better knowledge on network environment and better channel assignment decision at the APs. We conduct extensive simulation study and comparisons using Network Simulator 2 (NS2). Our results show that CACAO out-performs other traditional and recent schemes in terms of throughput with similar level of fairness. Furthermore, it converges quite fast to reduce interference to a low level.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131345009","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: 22
Security Issues in Integrated EPON and Next-Generation WLAN Networks 集成EPON和下一代WLAN网络的安全问题
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421795
Sarwarul Chowdhury, M. Maier
{"title":"Security Issues in Integrated EPON and Next-Generation WLAN Networks","authors":"Sarwarul Chowdhury, M. Maier","doi":"10.1109/CCNC.2010.5421795","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421795","url":null,"abstract":"In this paper, we propose a security policy by improving the extensible authentication protocol (EAP)-IKEv2 (Internet key exchange version-2) for key exchange together with advanced encryption standard in counter mode (AES-CTR) for encryption. This approach mitigate the involved security issues like mutual authentication and data confidentiality in emerging Fiber-Wireless (FiWi) networks based on integrated EPON and WLAN networks.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131713611","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
neXtream: A Multi-Device, Social Approach to Video Content Consumption nextstream:视频内容消费的多设备、社交方法
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421599
Reed Martin, A. L. Santos, Mike Shafran, Henry Holtzman, M. Montpetit
{"title":"neXtream: A Multi-Device, Social Approach to Video Content Consumption","authors":"Reed Martin, A. L. Santos, Mike Shafran, Henry Holtzman, M. Montpetit","doi":"10.1109/CCNC.2010.5421599","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421599","url":null,"abstract":"Video content has become available on an increasingly diverse set of devices and from an ever growing number of sources, creating a vast amount of choice for viewers. At the same time, the varying methods of viewing, interacting with, and sharing content have diverged. This paper introduces neXtream, a new approach to delivering video by integrating multiple devices, content sources, and social networks. This concept is developed following research in social television and converged applications, providing both personalization features and social interaction. NeXtream delivers video by dynamically generating streams of video customized to a viewer, while facilitating a common dialog between users around the content, creating both a userand community-centric viewing experience. NeXtream integrates smartphones, PCs, and TVs to deliver video content to viewers. The paper presents the system concept, theory, and architecture, and describes the developed prototype.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133924791","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: 28
Enabling Temporal Bit Rate Adaptation in Encrypted Video Streams 在加密视频流中启用时间比特率适应
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421797
M. Krause, M. Burza
{"title":"Enabling Temporal Bit Rate Adaptation in Encrypted Video Streams","authors":"M. Krause, M. Burza","doi":"10.1109/CCNC.2010.5421797","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421797","url":null,"abstract":"In practice, video streaming over wireless network through home gllteways requires bandwidth adaptation methods to deal with the fluctuation bandwidth the network. A popular method to compensate for temporary insufficient data throughput is dropping of B-frames. However, this method cannot be applied for encrypted commercial content, because frame types cannot be identified due to encryption of frame headers. Dropping I-frames or P-frames is not an option, because the video quality would drop dramatically. We developed a new approach using a sliding window to estimate the types of frames in an encrypted video stream. We validate the approach with probability calculations and extensive testing to demonstrate feasibility. Based on a large set of video sequences, our proposed algorithm drops the right frames in 99.99% of the cases.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123019367","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
Reduction of Message Misdirection in Description Based Clustered Ad Hoc Networks 基于描述的集群自组织网络中信息误传的减少
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421714
Tharinda Nishantha Vidanagama, H. Nakazato
{"title":"Reduction of Message Misdirection in Description Based Clustered Ad Hoc Networks","authors":"Tharinda Nishantha Vidanagama, H. Nakazato","doi":"10.1109/CCNC.2010.5421714","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421714","url":null,"abstract":"Future home appliances will have many useful built-in functions. A communication network that allows a user to access these built-in functions and to control the appliances is highly desirable. An ad hoc network can be easily deployed to connect these home appliances. For such a home network, ease of use must be given higher consideration. This paper discusses description based ad-hoc network routing where the nodes are given descriptions or keywords such as living room TV, kitchen oven etc. as identifiers. We propose three description based routing mechanisms: Single Routing Cache, Directional Routing Cache, and Proportional-Directional Routing Cache. Through simulation, we show that in all three methods the message delivery is 100% success in our configuration, but the amount of misdirected messages experienced by each method is different. The Proportional-Directional Routing Cache shows the least message misdirection with most preferable resource usage.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124555858","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
Optimizing Substream Scheduling for Peer-to-Peer Live Streaming 优化点对点直播的子流调度
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421848
K.-H. Kelvin Chan, S. Chan, A. Begen
{"title":"Optimizing Substream Scheduling for Peer-to-Peer Live Streaming","authors":"K.-H. Kelvin Chan, S. Chan, A. Begen","doi":"10.1109/CCNC.2010.5421848","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421848","url":null,"abstract":"In peer-to-peer (P2P) live streaming using unstructured mesh, packet scheduling is an important factor on overall playback delay. The hybrid pull-push approach has been recently proposed to reduce delay compared to classical pulling method. In this approach, video are divided into substreams and packets are pushed with low delay. There has been little work addressing the scheduling problem on substream assignment. In this paper, we study the scheduling problem on assigning substreams to minimize packet delay. Given heterogeneous contents, delays and bandwidths of parents, we formulate the Substream Assignment (SA) problem to assign substreams to parents with minimum delay. The SA problem can be optimally solved in polynomial time by transforming it into a Max-Weighted Bipartite Matching problem. Simulation results show that our distributed algorithm achieves substantially lower delay as compared with traditional pull and current hybrid pull-push approaches based on greedy algorithm.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127877536","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 Session Model for Cross-Domain Interactive Multi-User IPTV 跨域交互式多用户IPTV的会话模型
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421792
Daniel Goergen, J. Zoric, J. O'Connell, O. Friedrich, Benjamin Zachey
{"title":"A Session Model for Cross-Domain Interactive Multi-User IPTV","authors":"Daniel Goergen, J. Zoric, J. O'Connell, O. Friedrich, Benjamin Zachey","doi":"10.1109/CCNC.2010.5421792","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421792","url":null,"abstract":"This work proposes a session model for crossdomain interactive multi-user IPTV. The model has been designed to Support the creation and consumption of multi-user multimedia sessions that span multiple technology domains like managed IPTV, mobile network, home network and the Internet. These sessions can combine content and services from various domains and the model enables shared experiences between users at different locations, connected across diverse technology domains. This paper describes the session model, gives an overview of the general architecture and presents the results of an implementation that spans home, internet and mobile networks. This session model has been and first application demonstrators have been realized.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127977239","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
Mobile Devices as an Extension to the Wireless Infrastructure 移动设备作为无线基础设施的扩展
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421596
K. Seada
{"title":"Mobile Devices as an Extension to the Wireless Infrastructure","authors":"K. Seada","doi":"10.1109/CCNC.2010.5421596","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421596","url":null,"abstract":"Current capabilities of mobile handheld devices introduce them to new roles that were not possible less than a few years ago. In this paper, we look at personal mobile devices as an extension to the wireless infrastructure in environments that lack complete infrastructure coverage. We discuss various roles that these devices can play, starting with setting the devices as Internet relays that provide access to other devices not in range of the infrastructure access points. We then investigate server-like functionalities, in which the devices act as communication proxies or information caches in subnets disconnected from the rest of the network. We describe in detail the system architecture and an experimental implementation of these functionalities focusing on the practical issues of building the collective system.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128478892","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
Symbol Based Log-MAP in Concatenated LDPC-Convolutional Codes 基于符号的ldpc -卷积码的Log-MAP
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421729
K. ElMahgoub, M. Nafie
{"title":"Symbol Based Log-MAP in Concatenated LDPC-Convolutional Codes","authors":"K. ElMahgoub, M. Nafie","doi":"10.1109/CCNC.2010.5421729","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421729","url":null,"abstract":"In this paper we study the use of a high rate Low Density Parity Check (LDPC) codes in concatenated coding structures. Specifically, we use the LDPC code as an outer code, with a convolutional code as an inner code. We decode the convolutional code using a symbol based Log-MAP (Maximum a posteriori probability) decoder, and feed the soft outputs of this decoder into a non-binary Galois Field LDPC decoder. We compare this concatenation scheme using 16 QAM modulation with one using a bit based Log-MAP decoder over Additive White Gaussian Noise (A WGN) and Stanford University Interim (SVI-3) channel model. The new proposed decoding technique has shown improvements for both channel models.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128549838","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
An Architecture Based on Internet of Things to Support Mobility and Security in Medical Environments 基于物联网的医疗环境移动性和安全性支持体系结构
2010 7th IEEE Consumer Communications and Networking Conference Pub Date : 2010-01-09 DOI: 10.1109/CCNC.2010.5421661
A. Jara, M. A. Zamora, A. Gómez-Skarmeta
{"title":"An Architecture Based on Internet of Things to Support Mobility and Security in Medical Environments","authors":"A. Jara, M. A. Zamora, A. Gómez-Skarmeta","doi":"10.1109/CCNC.2010.5421661","DOIUrl":"https://doi.org/10.1109/CCNC.2010.5421661","url":null,"abstract":"Recently the problem of providing effective and appropriate healthcare to elderly and disable people is an important field in relative to the aging of population problems. The objective of information and communication technologies (ICT) is to focus on the new technologies the medical environments, so that it can provide management to accelerate and improve the clinical process. Our contribution is to introduce an approach based on Internet of things (IoT) in medical environments to achieve a global connectivity with the patient, sensors and everything around it. The main goal of this globality feature is to provide a context awareness to make the patient's life easier and the clinical process more effective. To achieve this approach, firstly has been developed an architecture which has been designed to offer great potential and flexibility of communications, monitoring and control. This architecture includes several advanced communication technologies; among them are 6LoWPAN and RFID/NFC, which are the basis ofthe IoT. Moreover the research deal with the problems related to the mobility and security that happens when IoT is applied in medical environments. The mobility issue requires developing a protocol over 6LoWPAN network to be carried out in sensor networks with high specification related with low power consumption and capacity. While in the RFID/NFC technologies need to support secure communications, our proposal is to introduce a set of security techniques and cryptographic SIM card to authenticate, encrypt and sign the communications with medical devices. The preliminary results showed a reduction of time in the handover process with the protocol for mobility defined, by omitting the stages of addressing and simplifying the MIPv6 protocol. In addition to increase the security in the communications carried out by NFC devices enhanced with the inclusion of cryptographic SIM card.","PeriodicalId":172400,"journal":{"name":"2010 7th IEEE Consumer Communications and Networking Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115859810","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: 141
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