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Wireless Multimedia Networking and Performance Modeling最新文献

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Hycast- podcast discovery in mobile networks Hycast-在移动网络中发现播客
Wireless Multimedia Networking and Performance Modeling Pub Date : 2007-10-22 DOI: 10.1145/1298216.1298224
A. Andronache, Matthias R. Brust, S. Rothkugel
{"title":"Hycast- podcast discovery in mobile networks","authors":"A. Andronache, Matthias R. Brust, S. Rothkugel","doi":"10.1145/1298216.1298224","DOIUrl":"https://doi.org/10.1145/1298216.1298224","url":null,"abstract":"Podcasts are a popular way to provide multimedia information about certain topics. A multitude of podcast servers exist in the Internet, allowing people to subscribe to them. Typically, podcasts are downloaded onto desktop computers and copied on mobile devices to be played while being on the move. In this paper, we extend the idea of podcasts, making them available in mobile network environments. In particular, HyCast does not rely on central podcast directories. Instead, HyCast also allows discovering, subscribing to, and downloading podcasts and episodes in the local neighborhood. For the dissemination of podcast information, we introduce and evaluate two different strategies. One is based on peer-to-peer communication between one-hop neighbors. The second one employs clustering to reduce the overhead of the podcast information dissemination.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116422494","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: 17
Power saving techniques in mbms multicast mode mbms组播模式下的节能技术
Wireless Multimedia Networking and Performance Modeling Pub Date : 2007-10-22 DOI: 10.1145/1298216.1298231
C. Bouras, A. Alexiou, V. Kokkinos
{"title":"Power saving techniques in mbms multicast mode","authors":"C. Bouras, A. Alexiou, V. Kokkinos","doi":"10.1145/1298216.1298231","DOIUrl":"https://doi.org/10.1145/1298216.1298231","url":null,"abstract":"Multimedia Broadcast Multicast Services (MBMS) was introduced in Third Generation Partnership Project (3GPP) Release 6 in order to more efficiently use network and radio resources for the transmission of multimedia services both in the core network and, most importantly, in the air interface of UTRAN (UMTS Terrestrial Radio Access Network). From the radio perspective, MBMS includes point-to-point (PtP) and point-to-multipoint (PtM) modes. The latter aims to overcome network congestion when a large number of users request the same content. One of the most important aspects in MBMS is power control. The fact that Node B's transmission power is a limited resource and must be shared among all MBMS users in a cell indicates the need for power control during an MBMS service. Techniques, such us rate splitting and mixed usage of transport channels can be used to reduce the power requirement of delivering multicast traffic for MBMS users. To this direction, this paper presents simulation results that will reinforce the need for the usage of such techniques and will reveal the amount of power that is saved.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"49 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125919541","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: 12
Delivery of on-demand video services in rural areas via IEEE 802.16 broadband wireless access networks 通过IEEE 802.16宽带无线接入网络在农村地区提供点播视频服务
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163707
O. I. Hillestad, A. Perkis, Vasken Genc, S. Murphy, John Murphy
{"title":"Delivery of on-demand video services in rural areas via IEEE 802.16 broadband wireless access networks","authors":"O. I. Hillestad, A. Perkis, Vasken Genc, S. Murphy, John Murphy","doi":"10.1145/1163698.1163707","DOIUrl":"https://doi.org/10.1145/1163698.1163707","url":null,"abstract":"A simulation study of delivery of streaming video on-demand via IEEE 802.16 based technologies is described. A number of scenarios are simulated which are representative of rural area deployments of such technologies. The study finds that IEEE 802.16 can support up to 9/10 simultaneous users streaming typical cinematic video content in CIF resolution, 24 frames/s, at average rates of around 750 kbps. Further, the study demonstrates the utility of H.264/AVC Scalable Video Coding (SVC) and a buffer-based congestion control algorithm in an adaptive video streaming solution","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130498290","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: 30
Multimedia content distribution in hybrid wireless networks using weighted clustering 基于加权聚类的混合无线网络多媒体内容分布
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163700
A. Andronache, Matthias R. Brust, S. Rothkugel
{"title":"Multimedia content distribution in hybrid wireless networks using weighted clustering","authors":"A. Andronache, Matthias R. Brust, S. Rothkugel","doi":"10.1145/1163698.1163700","DOIUrl":"https://doi.org/10.1145/1163698.1163700","url":null,"abstract":"Fixed infrastructured networks naturally support centralized approaches for group management and information provisioning. Contrary to infrastructured networks, in multi-hop ad-hoc networks each node acts as a router as well as sender and receiver. Some applications, however, requires hierarchical arrangements that¿for practical reasons¿has to be done locally and self-organized. An additional challenge is to deal with mobility that causes permanent network partitioning and reorganizations. Technically, these problems can be tackled by providing additional uplinks to a backbone network, which can be used to access resources in the Internet as well as to inter-link multiple ad-hoc network partitions, creating a hybrid wireless network. In this paper, we present a prototypically implemented hybrid wireless network system optimized for multimedia content distribution. To efficiently manage the ad-hoc communicating devices a weighted clustering algorithm is introduced. The proposed localized algorithm deals with mobility, but does not require geographical information or distances","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130026700","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: 25
Measurements and modeling of resource consumption in wireless video streaming: the decoder case 无线视频流中资源消耗的测量和建模:解码器案例
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163711
C. Koulamas, A. Prayati, G. Lafruit, G. Papadopoulos
{"title":"Measurements and modeling of resource consumption in wireless video streaming: the decoder case","authors":"C. Koulamas, A. Prayati, G. Lafruit, G. Papadopoulos","doi":"10.1145/1163698.1163711","DOIUrl":"https://doi.org/10.1145/1163698.1163711","url":null,"abstract":"Understanding the effects of any change in the parameters of the various functional components in a wireless multimedia streaming chain is an absolute prerequisite for making good decisions towards efficient and effective end-to-end resource management and control. This paper focuses on the behavior evaluation with respect to processing resource consumption of the decoding functional component in a battery-operated wireless device. CPU cycle accurate measurements are provided along with the first order models, which capture the influence of selected encoding parameters to the decoder's resource consumption","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134198640","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
Protecting the privacy of user's QoS preferences for multimedia applications 保护多媒体应用程序的用户QoS首选项的隐私
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163705
K. El-Khatib, G. Bochmann
{"title":"Protecting the privacy of user's QoS preferences for multimedia applications","authors":"K. El-Khatib, G. Bochmann","doi":"10.1145/1163698.1163705","DOIUrl":"https://doi.org/10.1145/1163698.1163705","url":null,"abstract":"Privacy violation is a serious and pressing problem for Internet users that requires immediate solution. This problem is very serious for applications that require the user's identity and QoS preferences like IP-telephony and videoconference applications. In this paper, we will identify the risks of privacy invasion during the setup of interactive multimedia applications, and introduce three schemes to solve the problem of protecting the user's privacy, with varying degree of complexities. The first approach is based on the use of a trusted third party; this has been a common approach for the Public Switched Telephony Network (PSTN). The second approach is based on the trust relationship between the communicating parties, and the third approach is based on primitives from the field of secure distributed computation","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128426610","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 multicast packet forwarding mechanism for WCDMA networks using routing lists WCDMA网络中使用路由列表的组播包转发机制
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163704
A. Alexiou, Dimitrios Antonellis, C. Bouras
{"title":"A multicast packet forwarding mechanism for WCDMA networks using routing lists","authors":"A. Alexiou, Dimitrios Antonellis, C. Bouras","doi":"10.1145/1163698.1163704","DOIUrl":"https://doi.org/10.1145/1163698.1163704","url":null,"abstract":"This paper proposes a multicast scheme for the packet forwarding mechanism in the Universal Mobile Telecommunications System (UMTS). The scheme relies on the introduction of the Permanent Multicast Routing List (PMRL) and Temporary Multicast Routing List (TMRL) in each node of the network except UEs. In the PMRL we record the nodes of the next level that the messages for every multicast group should be forwarded. The TMRL is useful for the temporary record of information from the path from the mobile users to the GGSN. Additionally, a Multicast Group List (MGL) is kept in the GGSN which records the members of each multicast group. These lists lead to the decrement of the transmitted packets and the more efficient use of the network resources in the multicast routing in UMTS. We analyze the exact steps that the multicast packets are transmitted to the members of each multicast group. Furthermore, special issues such as joining/leaving a multicast service are described","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134061135","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
Applying multipath routing to a video surveillance system deployed over a wireless mesh network 多路径路由在无线网状网络视频监控系统中的应用
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163703
F. Licandro, A. Lombardo, G. Schembra
{"title":"Applying multipath routing to a video surveillance system deployed over a wireless mesh network","authors":"F. Licandro, A. Lombardo, G. Schembra","doi":"10.1145/1163698.1163703","DOIUrl":"https://doi.org/10.1145/1163698.1163703","url":null,"abstract":"Large-scale distributed video surveillance systems typically consists of many video sources distributed over a wide area, transmitting live video streams to a central location for processing and monitoring. The target of this paper to bring down the overall system cost, increasing deployability, scalability, and performance is to propose a new architecture for a WVSN, which is based on a wireless mesh network, and to analyze its performance in order to choose some project parameters to achieve the best trade-off between video encoding quality and the generated network traffic","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132074041","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: 4
Scheduling and buffering mechanisms for remote rendering streaming in virtual walkthrough class of applications 虚拟演练类应用程序中远程呈现流的调度和缓冲机制
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163708
A. Boukerche, R. Pazzi
{"title":"Scheduling and buffering mechanisms for remote rendering streaming in virtual walkthrough class of applications","authors":"A. Boukerche, R. Pazzi","doi":"10.1145/1163698.1163708","DOIUrl":"https://doi.org/10.1145/1163698.1163708","url":null,"abstract":"With the recent advances of wireless networking and mobile devices technologies, exploration of remote 3D virtual environments has received a great deal of attention nowadays where many applications can be envisioned, such as virtual guides malls, online gaming, just to name a few. The primary objective of this paper is to present the specification of a buffering mechanism and a scheduling solution for on-time image delivery for a class of applications that is based upon a remote virtual environment exploration. Similar to a video buffering, our approach involves buffering the images closest to the user's position within the virtual environment, thereby, providing the client device with the necessary imagery data for rendering future user's viewpoints, removing network jitter, and providing smooth virtual interactionIn this paper, in order to overcome the limitations of current mobile device graphics performance, we propose to use a remote rendering approach that streams the necessary images to a client device as the user explores the virtual environment, leaving only the display and a number of minor image-based rendering tasks to the local, less powerful mobile hardware. Using ns-2, we present and extensive set of simulation experiments to evaluate the performance of our scheme. Our results indicate clearly that our solution is able to guarantee on-time delivery for approximately 40 sessions with a 10 Mbps link","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133641845","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: 15
Establishing how many VoIP calls a wireless LAN can support without performance degradation 确定无线局域网在不降低性能的情况下可以支持多少VoIP呼叫
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163709
Ángel Cuevas Rumín, C. Guy
{"title":"Establishing how many VoIP calls a wireless LAN can support without performance degradation","authors":"Ángel Cuevas Rumín, C. Guy","doi":"10.1145/1163698.1163709","DOIUrl":"https://doi.org/10.1145/1163698.1163709","url":null,"abstract":"The use of Voice IP (VoIP) over wireless local area networks (WLAN) is a topic of great interest in the research arena. This paper attempts to answer the question: how many VoIP calls can be established over a WLAN 802.11b network before the call quality becomes unacceptable?In order to answer the question we carried out a large number of simulations of both infrastructure and ad-hoc networks, with different background traffic conditions. In each case we measured the key performance criteria: packet delay, jitter and lost-packet rate. This paper presents some of the key results and provides a number of answers, depending on the precise conditions. It turns out that for infrastructure networks it is unlikely that more than 5 VoIP calls can be supported before some of the calls experience unacceptable performance limitations. For ad-hoc networks the situation is less clear, as it depends very much on the exact routing used. However the likely limit is similar","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134636325","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: 5
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