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Wireless Multimedia Networking and Performance Modeling最新文献

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Aggregate modeling for TCP sessions TCP会话的聚合建模
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163712
H. Hassan, Jean-Marie Garcia
{"title":"Aggregate modeling for TCP sessions","authors":"H. Hassan, Jean-Marie Garcia","doi":"10.1145/1163698.1163712","DOIUrl":"https://doi.org/10.1145/1163698.1163712","url":null,"abstract":"In this paper, we characterize the superposition of TCP sessions and we study the influence of transmission parameters on traffic burstiness. Particularly, we show the relation between TCP traffic characteristics and the loss rate observed on transmission links. Then we propose aggregate traffic model for TCP sessions allowing faster execution while preserving TCP sessions dynamic behavior. The results show that our aggregate TCP session model is suitable when activity periods are very short compared to idle periods. In particular, this is true in wireless networks","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"44 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":"130190312","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
Optimal design of hybrid FEC/ARQ schemes for real-time applications in wireless networks 无线网络实时应用中FEC/ARQ混合方案的优化设计
Wireless Multimedia Networking and Performance Modeling Pub Date : 2006-10-06 DOI: 10.1145/1163698.1163701
R. E. Azouzi, Thierry Peyre, A. Benslimane
{"title":"Optimal design of hybrid FEC/ARQ schemes for real-time applications in wireless networks","authors":"R. E. Azouzi, Thierry Peyre, A. Benslimane","doi":"10.1145/1163698.1163701","DOIUrl":"https://doi.org/10.1145/1163698.1163701","url":null,"abstract":"Multimedia data transmission over wireless networks often suffers from delay, jitter and packet loss. The main problem to implement a wireless network is the high and variable bit error rate in the radio link, making it necessary to use an additional error control mechanism. The traditional techniques for error control are ARQ (Automatic Repeat Request) and FEC (Forward Error Correction). The ARQ technique works better than FEC, if the bit error rate in the channel is low, and worse, if the bit error rate is high. Thus, hybrid ARQ/FEC techniques can improve the performance. In this paper, a novel hybrid ARQ/FEC scheme is analyzed in an environment of real-time applications. We focus in a simple FEC scheme which has been standardized by IETF [11]. It consists in adding a low quality copy of the original packet n to the packet n + ø. If packet n is lost in the network, it can be correctly recovered if packet n +ø is correctly received. The effect of link layer (LL) parameters like the number of LL transmission attempts, offset ø , LL packet size, and FEC code rate on the TFRC (TCP Friendly Rate Control)and UDP performance is evaluated. We show that the combination of FEC and ARQ reduces the number of retransmissions and the time spent by a packet in the buffer at the output of the wireless link. We validate our analytical results using ns-2 [9]simulation","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"92 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":"117265052","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
Adaptive streaming on heterogeneous networks 异构网络上的自适应流
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089741
M. Bernaschi, F. Cacace, Raffaele Clementelli, L. Vollero
{"title":"Adaptive streaming on heterogeneous networks","authors":"M. Bernaschi, F. Cacace, Raffaele Clementelli, L. Vollero","doi":"10.1145/1089737.1089741","DOIUrl":"https://doi.org/10.1145/1089737.1089741","url":null,"abstract":"Specific network protocols, like MobileIP, offer seamless connectivity to mobile systems. However, the QoS requirements of streaming applications and video conferencing systems require an approach that spans across different layers of the network stack. In this paper we study how to integrate an efficient method for vertical handoff and adaptation support for multimedia streaming through heterogeneous networks. We also present experimental results obtained with our prototype on IEEE 802.11 and UMTS networks.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"602 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134042170","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
Performance analysis of differentiated ARQ scheme for video transmission over wireless networks 无线网络视频传输差分ARQ方案的性能分析
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089739
Fen Hou, P. Ho, Yongbing Zhang
{"title":"Performance analysis of differentiated ARQ scheme for video transmission over wireless networks","authors":"Fen Hou, P. Ho, Yongbing Zhang","doi":"10.1145/1089737.1089739","DOIUrl":"https://doi.org/10.1145/1089737.1089739","url":null,"abstract":"The Advance in video coding and wireless communication techniques has enabled video-based services to be the most important component of many emerging multimedia applications. The critical issue is to develop a quality video transmission system over wireless networks. In this paper, an efficient error control scheme, Differentiated Automatic Repeat reQuest (DARQ), is proposed to enhance the robustness of video transmission over error-prone wireless environments. Analytical and simulation results are given to evaluate the performance of the proposed scheme in terms of discard probability, overflow probability and outage probability.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134464909","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
Performance analysis of the intertwined effects between network layers for 802.11g transmissions 802.11g传输的网络层间交织效应的性能分析
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089758
Jon Gretarsson, Feng Li, Mingzhe Li, A. Samant, H. Wu, M. Claypool, R. Kinicki
{"title":"Performance analysis of the intertwined effects between network layers for 802.11g transmissions","authors":"Jon Gretarsson, Feng Li, Mingzhe Li, A. Samant, H. Wu, M. Claypool, R. Kinicki","doi":"10.1145/1089737.1089758","DOIUrl":"https://doi.org/10.1145/1089737.1089758","url":null,"abstract":"While the canonical behavior of today's home Internet users involves several residents concurrently executing diverse Internet applications, the most common home configuration is a single external connection into a wireless access point (AP) that promises to provide concurrent high-bandwidth Internet access for multiple hosts through a wireless local area network (WLAN). Recent research has attempted to assess the performance impact of hosts with weak wireless connectivity upon the other WLAN hosts by employing measurement studies or analytic models that focus primarily on wireless channel characteristics. This paper examines the intertwined effects on performance of the user applications, the network protocol and the wireless channel characteristics via carefully designed experiments that leverage previously developed network measurement tools. The study provides empirical evidence that suggests the overall performance of a WLAN is not only determined by the individual wireless channel qualities associated with each host, but also by the interaction of the various network layers with respect to transmission contention, queuing at the access point, transport protocol, and behavior of the specific applications. These results imply that effective WLAN performance modeling needs to include details on multiple network layers.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131864746","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: 13
QoS- based JPEG images transmission protocol for wireless CDMA communication systems 无线CDMA通信系统中基于QoS的JPEG图像传输协议
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089744
A. Boukerche, Yanjun Hu
{"title":"QoS- based JPEG images transmission protocol for wireless CDMA communication systems","authors":"A. Boukerche, Yanjun Hu","doi":"10.1145/1089737.1089744","DOIUrl":"https://doi.org/10.1145/1089737.1089744","url":null,"abstract":"In recent years, wireless communication systems have become increasingly popular as an inexpensive and promising means for ubiquitous and wireless multimedia communications. However, before wireless multimedia appliances become a common commodity several challenging issues need to be resolved. Wireless communication channels are characterized by long bursts of data errors, and ambient noise, propagation losses, multipath, interference, and properties arising from the use of multiple antennas pose a serious problem to information transmission over wireless networks. In this paper, we propose a QoS-based modified scheme to transmit JPEG-coded images over wireless channels for CDMA communication systems, based upon a combination of a modified MAP (Maximum Aposteriori Probability) decoding to eliminate error transmissions and a fast decorrelating multiuser detection mechanism as a post-processing task to eliminate the MAI (Multiple Access Interference) interference. We describe our transmission protocol, and report on its performance evaluation using a simulation testbed we have designed for this purpose. Our results clearly indicate that our protocol improves significantly the quality of transmitted JPEG images over wireless CDMA systems and the transmission errors are significantly reduced when compared to regular transmissions.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124741308","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
The optimal choice of encoding parameters for MPEG-4 AAC streamed over wireless networks 无线网络上MPEG-4 AAC流编码参数的最佳选择
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089753
C. Bauer
{"title":"The optimal choice of encoding parameters for MPEG-4 AAC streamed over wireless networks","authors":"C. Bauer","doi":"10.1145/1089737.1089753","DOIUrl":"https://doi.org/10.1145/1089737.1089753","url":null,"abstract":"This paper addresses a novel linear programming based approach to optimize the choice of the encoding parameters for the MPEG-4 AAC audio codec. Current techniques solve the encoding problem for MPEG-4 AAC by splitting the encoding procedure into a sequence of smaller problems that are solved heuristically. In contrast, we approach the coding problem as multidimensional optimization problem and achieve large performance gains compared with current methods.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122124013","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
Fast pre-authentication based on proactive key distribution for 802.11 infrastructure networks 基于主动密钥分发的802.11基础设施网络快速预认证
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089746
M. Kassab, A. Belghith, J. Bonnin, Sahbi Sassi
{"title":"Fast pre-authentication based on proactive key distribution for 802.11 infrastructure networks","authors":"M. Kassab, A. Belghith, J. Bonnin, Sahbi Sassi","doi":"10.1145/1089737.1089746","DOIUrl":"https://doi.org/10.1145/1089737.1089746","url":null,"abstract":"Recently, user mobility in wireless data networks is increasing because of the popularity of portable devices and the desire for voice and multimedia applications. These applications, however, require fast handoffs among base stations to maintain the quality of the connections. Re-authentication during handoff procedures causes a long handoff latency which affects the flow and service quality especially for multimedia applications. Therefore minimizing re-authentication latency is crucial in order to support real-time multimedia applications on public wireless IP networks.In this paper, we proposed two fast re-authentication methods based on the predictive authentication mechanism defined by IEEE 802.11i security group. We have implemented these methods in an experimental test-bed using freeware and commodity 802.11 hardware and we demonstrate that they provide significant latency reductions compared to already proposed solutions. Conducted measurements show a very low latency not exceeding 50 ms under extreme congested network conditions.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131118027","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: 85
A novel secure wireless video surveillance system based on Intel IXP425 network processor 基于Intel IXP425网络处理器的新型安全无线视频监控系统
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089748
H. Yin, Chuang Lin, Sebastien Berton, Xiaowen Chu
{"title":"A novel secure wireless video surveillance system based on Intel IXP425 network processor","authors":"H. Yin, Chuang Lin, Sebastien Berton, Xiaowen Chu","doi":"10.1145/1089737.1089748","DOIUrl":"https://doi.org/10.1145/1089737.1089748","url":null,"abstract":"This paper presents the design of a novel high-secure wireless video surveillance system. The system is based on the 802.11g ad-hoc wireless infrastructure; and the Intel IXP425 network processors are used as the basic processing unit. A media-dependant video encryption scheme, including reliable data embedding technique and real-time video encryption algorithm, has been implemented for the system to work in an open and insecure wireless environment. Our system offers several unique advantages: (1) it provides high security guarantee; (2) it does not require expensive access points/routers; (3) it can be readily deployed since it is built on top of existing wireless ad-hoc infrastructure; (4) it is robust in the presence of adaptive mechanism and error-prone channel.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128370092","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
A novel multiple access scheme in wireless multimedia networks with multi-packet reception 多分组接收无线多媒体网络中的一种新的多址方案
Wireless Multimedia Networking and Performance Modeling Pub Date : 2005-10-13 DOI: 10.1145/1089737.1089742
Hui Chen, F. Yu, Henry C. B. Chan, Victor C. M. Leung
{"title":"A novel multiple access scheme in wireless multimedia networks with multi-packet reception","authors":"Hui Chen, F. Yu, Henry C. B. Chan, Victor C. M. Leung","doi":"10.1145/1089737.1089742","DOIUrl":"https://doi.org/10.1145/1089737.1089742","url":null,"abstract":"Recent advances in signal processing techniques have enabled wireless networks to have multi-packet reception (MPR) capability at the physical layer, where it is possible to receive one or more packets when concurrent transmissions occur. In this paper, we propose the novel multi-reservation multiple access (MRMA) scheme for future wireless multimedia networks based on such an MPR channel model, which fully exploit the channel's MPR capacity while fulfilling the quality of service (QoS) requirements of different multimedia traffic. MRMA employs a centralized reservation mechanism to control the number of simultaneous packets transmitted in each time slot to satisfy a traffic class' packet loss ratio requirement. Moreover, MRMA incorporates an efficient adaptive random access method and a priority control mechanism to provide guaranteed and best-effort services for real time voice/video traffic and connectionless data traffic, respectively. Simulation and analytical results are presented to illustrate the effectiveness of the proposed scheme.","PeriodicalId":131891,"journal":{"name":"Wireless Multimedia Networking and Performance Modeling","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128681217","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: 8
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