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2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)最新文献

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A matrix-based fast calculation algorithm for estimating network capacity of MANETs 基于矩阵的manet网络容量快速估计算法
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.11
Ning Li, Yan Guo, Shaoren Zheng, Chang Tian, Jun Zheng
{"title":"A matrix-based fast calculation algorithm for estimating network capacity of MANETs","authors":"Ning Li, Yan Guo, Shaoren Zheng, Chang Tian, Jun Zheng","doi":"10.1109/ICW.2005.11","DOIUrl":"https://doi.org/10.1109/ICW.2005.11","url":null,"abstract":"In this paper, we study capacity estimation for mobile ad hoc networks, (MANETs) using directional antennas. A matrix-based fast calculation algorithm is proposed to calculate the network capacity in a network scenario in which there is no channel sharing among multiple sessions and there is an end-to-end delay constraint between each source and destination pair The algorithm calculates the network capacity in terms of the maximum number of k-hop paths based on the k-hop adjacency matrix of the network. Through numerical and simulation results, we show that our proposed algorithm can estimate network capacity much faster than the brute-force search algorithm with the same accuracy. In addition, our proposed algorithm can also be adapted to a transmission environment using omni-directional antennas.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133936147","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: 9
Estimation of linear stochastic systems over a queueing network 排队网络上线性随机系统的估计
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.46
M. Epstein, A. Tiwari, Ling Shi, R. Murray
{"title":"Estimation of linear stochastic systems over a queueing network","authors":"M. Epstein, A. Tiwari, Ling Shi, R. Murray","doi":"10.1109/ICW.2005.46","DOIUrl":"https://doi.org/10.1109/ICW.2005.46","url":null,"abstract":"In this paper, we consider the standard state estimation problem over a congested packet-based network. The network is modeled as a queue with a single server processing the packets. This provides a framework to consider the effect of packet drops, packet delays and bursty losses on state estimation. We use a modified Kalman Filter with buffer to cope with delayed packets. We analyze the stability of the estimates with varying buffer length and queue size. We use high order Markov chains for our analysis. Simulation examples are presented to illustrate the theory.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133082400","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
Unequal error protection for ROI coded images over fading channels 衰落信道上ROI编码图像的不等错误保护
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.79
Yeshan Yatawara, M. Caldera, T. M. Kusuma, H. Zepernick
{"title":"Unequal error protection for ROI coded images over fading channels","authors":"Yeshan Yatawara, M. Caldera, T. M. Kusuma, H. Zepernick","doi":"10.1109/ICW.2005.79","DOIUrl":"https://doi.org/10.1109/ICW.2005.79","url":null,"abstract":"Region of interest (ROI) coding is a feature supported by the Joint Photographic Experts Group 2000 (JPEG 2000) image compression standard and allows particular regions of interest within an image to be compressed at a higher quality than the rest of the image. In this paper, unequal error protection (UEP) is proposed for ROI coded JPEG 2000 images as a technique for providing increased resilience against the effects of transmission errors over a wireless communications channel. The hierarchical nature of an ROI coded JPEG 2000 code-stream lends itself to the use of UEP whereby the important bits of the code-stream are protected with a strong code while the less important bits are protected with a weaker code. Simulation results obtained using symbol-by-symbol maximum a posteriori probability (MAP) decoding demonstrate that the use of UEP offers significant gains in terms of the peak signal to noise ratio (PSNR) and the percentage of readable files. Moreover the use of ROI-based UEP leads to reduced computational complexity at the receiver.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129687934","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: 16
A flexible communication toolkit for synchronous groupware 用于同步群件的灵活通信工具包
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.8
Cezar Plesca, R. Grigoras, P. Quéinnec, G. Padiou
{"title":"A flexible communication toolkit for synchronous groupware","authors":"Cezar Plesca, R. Grigoras, P. Quéinnec, G. Padiou","doi":"10.1109/ICW.2005.8","DOIUrl":"https://doi.org/10.1109/ICW.2005.8","url":null,"abstract":"Synchronous groupware applications need to offer each user a consistent view of the interactions represented by the streams exchanged between dispersed groups of users. Using strong ordering such as CAUSAL or TOTAL order to capture and deliver streams' interactions may be too expensive (in terms of delay) due to the variability of the network conditions. This paper builds upon previous work on expressing streams causality and propose a multimodal communication toolkit in order to integrate different delivery modes (e.g. FIFO, CAUSAL, TOTAL) into a single channel (with respect to each of these protocols). Moreover the proposed multimodal channel can handle the mix of any partial or total order protocols. We build an experimental platform for measuring the cost of combining several protocols on various network conditions and show how our communication service can adjust the degree of synchronization according to network variations.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132770760","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
A new approach for supporting QoS in MAC layer over MANETs 一种支持MAC层服务质量的新方法
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.12
M. Brahma, K. Kim, A. Abouaissa, P. Lorenz
{"title":"A new approach for supporting QoS in MAC layer over MANETs","authors":"M. Brahma, K. Kim, A. Abouaissa, P. Lorenz","doi":"10.1109/ICW.2005.12","DOIUrl":"https://doi.org/10.1109/ICW.2005.12","url":null,"abstract":"Currently, the emergence of nomadic applications has raised intense research interest in providing quality of service (QoS) in mobile ad hoc networks (MANETs). An ad hoc network can be considered as an autonomous distributed system that consists of a set of identical mobile nodes that move independently and freely. Each node uses wireless links to communicate with other nodes that reside within its transmission range. In this paper, we propose a new approach for support QoS by the use of priority in the MAC buffer over MANETs. We evaluate the performance of our algorithm and compare its performance with the original IEEE 802.11b protocol. Simulation results show that this new approach reduces packet loss rate and increases throughput in the MAC layer.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133672782","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
A coordination middleware for wireless sensor networks 无线传感器网络的协调中间件
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.5
M. Díaz, B. Rubio, J. M. Troya
{"title":"A coordination middleware for wireless sensor networks","authors":"M. Díaz, B. Rubio, J. M. Troya","doi":"10.1109/ICW.2005.5","DOIUrl":"https://doi.org/10.1109/ICW.2005.5","url":null,"abstract":"Middleware development in the growing and promising field of sensor networks is a major challenge in order to facilitate the programmer task and bridge the gap between the applications and the hardware. This paper presents a new middleware for wireless sensor networks based on the Coordination paradigm. The middleware is thought to support both an operational setting based on a (hierarchical) architecture of sensor regions and a coordination model rested on tuple channels. Tuple channels are FIFO structures that allow one-to-many and many-to-one communication between region sensors and the region leader in a single-hop way. The main components of the middleware architecture are described.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133448141","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
SMDP - a simple multimedia service description protocol on the Internet 一个简单的互联网多媒体服务描述协议
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.74
Q. N. Yin, Chung-Horng Lung
{"title":"SMDP - a simple multimedia service description protocol on the Internet","authors":"Q. N. Yin, Chung-Horng Lung","doi":"10.1109/ICW.2005.74","DOIUrl":"https://doi.org/10.1109/ICW.2005.74","url":null,"abstract":"Downloading multimedia content from the Internet becomes more and more popular. Consumers have more to consider than just the name of the artist or the title of the content when they buy online. Based on the current model, it is time consuming for consumers to obtain the desired multimedia content, starting from the beginning of searching a title to the end of placing a purchase order. We have proposed a protocol MSAP (Multimedia Service Announcement Protocol) that enables consumers to search and download multimedia content more effectively and faster. This paper builds on the concept of MSAP for content search and distribution. This paper presents SMDP (Simple Multimedia service Description Protocol) that is used for multimedia description for both the service and content levels. SMDP can be used for service providers to effectively convey multimedia information to the consumers.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122563855","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
Framework for secure audio streaming to wireless access network 安全音频流到无线接入网络的框架
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.48
B. Vaidya, Jongwoo Kim, Jae-Young Pyun, Jong-An Park, Seung-Jo Han
{"title":"Framework for secure audio streaming to wireless access network","authors":"B. Vaidya, Jongwoo Kim, Jae-Young Pyun, Jong-An Park, Seung-Jo Han","doi":"10.1109/ICW.2005.48","DOIUrl":"https://doi.org/10.1109/ICW.2005.48","url":null,"abstract":"Advances in the Internet and multimedia technologies have spurred many research efforts in Internet-based multimedia access systems, which integrate wireline and wireless networks. Internet-based multimedia streaming services are in need of a service creation model. In this paper, we presented such a model and framework for delivering real-time traffics to a wireless access network over public Internet protocol (IP) backbone network. We have presented an experimental study of audio streaming when IP tunneling network using generic route encapsulation (GRE) along with Internet protocol security (IPSec) is implemented. The impact on performance, with particular attention to quality of service (QoS) has been evaluated through a series of experiments. A compression scheme based on compressed real-time transport protocol (CRTP) used for delivering real-time traffic securely in wireless access network and preliminary performance results have been presented.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117222672","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
Characterizing the impact of routing holes on geographic routing 描述路由孔对地理路由的影响
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.34
Marwan M. Fayed, H. Mouftah
{"title":"Characterizing the impact of routing holes on geographic routing","authors":"Marwan M. Fayed, H. Mouftah","doi":"10.1109/ICW.2005.34","DOIUrl":"https://doi.org/10.1109/ICW.2005.34","url":null,"abstract":"The performance of geographic routing protocols is largely determined by the routing holes from which they must recover. In this paper we examine routing hole characteristics. In simulations of large networks of varying size and placement strategy we investigate (1) the size of routing holes, (2) the number of hops needed to escape from a routing hole, and (3) the likelihood of encountering a routing hole as a function of distance. Our results show the distribution of hops required to map a hole is skewed toward smaller values (/spl les/ 10 hops), and that the majority of holes can be circumvented in 4 hops or less. Interestingly, we find the probability of encountering a routing hole to be greatly affected by the distance in all but uniformly generated networks.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125653477","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: 18
Distributed sensor network data fusion using image processing 基于图像处理的分布式传感器网络数据融合
2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05) Pub Date : 2005-08-14 DOI: 10.1109/ICW.2005.43
M. Elmusrati, R. Jäntti, H. Koivo
{"title":"Distributed sensor network data fusion using image processing","authors":"M. Elmusrati, R. Jäntti, H. Koivo","doi":"10.1109/ICW.2005.43","DOIUrl":"https://doi.org/10.1109/ICW.2005.43","url":null,"abstract":"In this paper we discuss the analogy between spatial distributed sensor network analysis and image processing. The analogy comes from the fact that in high density sensor networks the output of sensors is correlated both spatially and temporally. This means that the output of a sensor is correlated with the outputs of its neighbours. This characteristic is very similar to the pixels' output (intensity) in video signals. The video signal consists of multiple correlated frames (correlation in time), and each frame consists of large number of pixels, and usually there is high correlation between pixels (spatial correlation). By defining this relation one can use the well-known image processing techniques for sensor data compression, fusion, and analysis. As an example we show how to use the quadtree image decomposition for sensor spatial decomposition.","PeriodicalId":255955,"journal":{"name":"2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129421223","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
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