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A cross-layer autonomic architecture for QoS support in wireless networks 无线网络中支持QoS的跨层自治体系结构
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812862
W. Berrayana, H. Youssef, S. Lohier, G. Pujolle
{"title":"A cross-layer autonomic architecture for QoS support in wireless networks","authors":"W. Berrayana, H. Youssef, S. Lohier, G. Pujolle","doi":"10.1109/WD.2008.4812862","DOIUrl":"https://doi.org/10.1109/WD.2008.4812862","url":null,"abstract":"Cross-layering is a novel paradigm in wireless local area networks (WLAN) proposed to improve the support of QoS (Quality of Service) traffic. Many cross-layer solutions have already been developed. They diverge in the way the cross-layer concept is implemented and the type of performance gain they recommend. In parallel to cross-layering, a new network paradigm is growing: the autonomic paradigm appearing as the size and complexity of networks grow. There is a growing consensus among the research community that combining cross-layering and autonomic paradigms is, until now, the best alternative for better QoS support in WLANs. We combine cross-layering and autonomic concepts in the design of a new architecture called XLEngine (Cross-Layer Engine) having the ability to make optimizations based on local and network wide knowledge. XLEngine is implemented and simulated under the J-Sim simulator for different wireless scenarios. Simulation results show that XLEngine outperforms the classic layered architecture.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125295047","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
Agent-cooperation based communication architecture for wireless sensor networks 基于agent协作的无线传感器网络通信体系结构
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812863
A. Sardouk, L. Merghem, D. Gaïti
{"title":"Agent-cooperation based communication architecture for wireless sensor networks","authors":"A. Sardouk, L. Merghem, D. Gaïti","doi":"10.1109/WD.2008.4812863","DOIUrl":"https://doi.org/10.1109/WD.2008.4812863","url":null,"abstract":"The main goal of wireless sensor networks is to gather information from the region of interest through a large number of micro sensor nodes. This gathering is based on a communication architecture such as client/server which consumes a lot of power and doesn't take in consideration the information properties. In this paper, we propose a new communication architecture for wireless sensor networks based on agents' cooperation. This architecture uses techniques from multi-agent systems and networks in order to ensure an optimal information gathering. It benefits from AODV not only for route discovery but also to define the basic list of cooperating agents, using the RREP control message. These agents create cooperatively a simple message summarizing the important information of multiple nodes, where it is widely known that sending a one big message consumes less energy than sending several small messages of the same quantity of information. In order to appreciate our contribution, we discuss its advantages and its limitations by comparing it to client/server and mobile agent architectures.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122791741","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
A hybrid architecture for integrating Mobile ad hoc network and the internet using Fixed and Mobile Gateways 使用固定和移动网关集成移动自组织网络和互联网的混合架构
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812876
K. Khan, M. A. Ahmed, A. V. Reddy, R. Zaman
{"title":"A hybrid architecture for integrating Mobile ad hoc network and the internet using Fixed and Mobile Gateways","authors":"K. Khan, M. A. Ahmed, A. V. Reddy, R. Zaman","doi":"10.1109/WD.2008.4812876","DOIUrl":"https://doi.org/10.1109/WD.2008.4812876","url":null,"abstract":"The integration of wired and wireless networks is gaining popularity due to its usefulness and practical use. Internet connectivity would benefit users from mobility offered by mobile ad hoc networks and connectivity provided by the Internet. This integration however faces problem due to architectural differences in terms of infrastructure, topology, and mobility mechanisms. A number of integration strategies have been proposed so far. Few strategies use fixed gateways, others use mobile gateways. Some strategies are based on mobile IPv4 while others are based on mobile IPv6. The ad hoc routing protocols deployed in the framework are also different. In this paper, we propose a framework for integrating mobile ad hoc network and the Internet using both fixed and mobile gateways. The ad hoc mobile nodes can access the Internet using either fixed or mobile gateway, based on criteria of distance, load on the gateway. We use an extended version of AODV routing protocol in the framework. The objective behind using both fixed and mobile gateways is to increase the reliability of the Internet access, scalability, providing transparent Internet access to the ad hoc hosts and in general improve the performance of the integrated framework. The proposed framework is a hybrid approach involving two-layer and three layer approaches of integration.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122895152","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
One-node-based mobile architecture for a better QoS control 基于单节点的移动架构，实现更好的QoS控制
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812874
K. Daoud, Philippe Herbelin, N. Crespi
{"title":"One-node-based mobile architecture for a better QoS control","authors":"K. Daoud, Philippe Herbelin, N. Crespi","doi":"10.1109/WD.2008.4812874","DOIUrl":"https://doi.org/10.1109/WD.2008.4812874","url":null,"abstract":"Although IMS (IP multimedia subsystem) brings a large set of new services and offers service convergence, it introduces complexity on network procedures and architecture. This paper focuses on IMS session establishment procedure and highlights the long delay introduced by this procedure. It also raises failure problems encountered when only partial radio resources are available for the requested service. To solve these issues, we propose a new architecture, called UFA (ultra flat architecture) which is an IMS distributed and flat architecture composed of only base stations. We define session establishment procedure for UFA and describe the way it handles access network resource information to adapt the service accordingly. We compare UFA and IMS classical architectures in terms of session establishment delay. Evaluation uses queuing theory and shows that UFA enables a considerable gain.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133166204","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
Bit, tone and cyclic prefix allocation in OFDM with application to In-Home PLC OFDM中的位、音、循环前缀分配及其在家用PLC中的应用
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812844
A. Tonello, S. D'Alessandro, L. Lampe
{"title":"Bit, tone and cyclic prefix allocation in OFDM with application to In-Home PLC","authors":"A. Tonello, S. D'Alessandro, L. Lampe","doi":"10.1109/WD.2008.4812844","DOIUrl":"https://doi.org/10.1109/WD.2008.4812844","url":null,"abstract":"We propose to maximize achievable rate in OFDM systems via the adaptation of the cyclic prefix (CP) length jointly with tone and bit loading. We show that significant gains are obtained compared to the case of using a fixed CP with duration equal to the channel. Several metrics for the CP design are described. They tradeoff between performance and complexity. Both single user and multiuser OFDM are considered. Numerical results are reported for typical power line communication indoor channels.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121793867","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: 31
Reduced complexity dSLM recovery in MIMO-OFDM without side information 在没有侧信息的MIMO-OFDM中降低了dSLM恢复的复杂性
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812835
Mohammed I. Asseri, B. Sharif, S. L. Goff, C. Tsimenidis
{"title":"Reduced complexity dSLM recovery in MIMO-OFDM without side information","authors":"Mohammed I. Asseri, B. Sharif, S. L. Goff, C. Tsimenidis","doi":"10.1109/WD.2008.4812835","DOIUrl":"https://doi.org/10.1109/WD.2008.4812835","url":null,"abstract":"Directed Selected Mapping (dSLM) is a well known Peak-to-Average Power Ratio (PAPR) reduction scheme in Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems. This paper presents a modification to dSLM for a Zero-Forcing (ZF) receiver. The contribution in this paper is twofold; firstly, the transmitted phase vector is recovered without side information whist maintaining bit error performance, and secondly, receiver complexity is reduced.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"11 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124258213","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
On the congestion control within VANET VANET内的拥塞控制
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812915
M. Bouassida, M. Shawky
{"title":"On the congestion control within VANET","authors":"M. Bouassida, M. Shawky","doi":"10.1109/WD.2008.4812915","DOIUrl":"https://doi.org/10.1109/WD.2008.4812915","url":null,"abstract":"The basic objective of congestion control is to best exploit the available network resources while preventing sustained overloads of network nodes and links. Appropriate congestion control mechanisms are essential to maintain the efficient operation of a network. Ensuring congestion control within vehicular ad hoc networks address special challenges, due to the characteristic and specificities of such environment (High dynamic and mobility of nodes, high rate of topology changes, high variability in nodes density and neighborhood, broadcast/geocast communication nature ...). In this context, we present in this paper a congestion control approach, based on the concept of dynamic priorities-based scheduling, to ensure a reliable and safe communications architecture within VANET. Messages priorities are dynamically evaluated according to their types, the network context and the neighborhood.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129490556","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: 58
Instantaneous mobile video surveillance: A security & quality challenge 即时移动视频监控:安全和质量的挑战
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812864
S. Sutor, G. Pujolle, R. Reda
{"title":"Instantaneous mobile video surveillance: A security & quality challenge","authors":"S. Sutor, G. Pujolle, R. Reda","doi":"10.1109/WD.2008.4812864","DOIUrl":"https://doi.org/10.1109/WD.2008.4812864","url":null,"abstract":"In this paper an instantaneous, high performance, large-scale video surveillance system is presented. Available and future network technologies are analyzed for the dynamical and flexible use of mobile devices in video surveillance. Based on this analysis, video quality levels are proposed followed by wireless ad hoc video surveillance performance levels (WAD levels). Then the systems' structure as well as the underlying technologies are presented. The system is further analyzed to measure its performance and to expose potential security threats and discuss the corresponding counter meas.ures on real-world attack scenarios.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125725399","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 efficient algorithm resistant to SPA and DPA variants in ECC 一种有效的ECC中抗SPA和DPA变异的算法
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812882
H. Meshgi, Mohammad Erfan Khazaee, B. Kasiri, H. Shahhoseini
{"title":"An efficient algorithm resistant to SPA and DPA variants in ECC","authors":"H. Meshgi, Mohammad Erfan Khazaee, B. Kasiri, H. Shahhoseini","doi":"10.1109/WD.2008.4812882","DOIUrl":"https://doi.org/10.1109/WD.2008.4812882","url":null,"abstract":"Power analysis is a dominant method that reveals side channel information by tracing power signal. In elliptic curve cryptosystem (ECC), they have received considerable attention. The main operation of ECC is scalar multiplication which is vulnerable to power analysis attacks. In this paper we present an algorithm for securing elliptic curve scalar multiplication against Power Analysis. However some algorithms, which are resistant against some kinds of power analysis attacks like Simple Power Analysis (SPA) or Differential Power Analysis (DPA), were developed, we contribute an algorithm that is resistant against the most recent kinds of power analysis attacks. Also, our algorithm can be successful for a large class of elliptic curves, including most of the elliptic curves recommended by standard bodies such as ANSI, IEEE, ISO, NIST, SECG or WTLS.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124412305","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
Performance evaluation of random step-size NLMS in adaptive channel equalization 随机步长NLMS在自适应信道均衡中的性能评价
2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI: 10.1109/WD.2008.4812828
S. Jimaa, N. A. Saeedi, S. Al-Araji, R. Shubair
{"title":"Performance evaluation of random step-size NLMS in adaptive channel equalization","authors":"S. Jimaa, N. A. Saeedi, S. Al-Araji, R. Shubair","doi":"10.1109/WD.2008.4812828","DOIUrl":"https://doi.org/10.1109/WD.2008.4812828","url":null,"abstract":"Adaptive filtering algorithms have been widely applied to solve the problem of channel equalization in digital communication systems. So far, the LMS and the NLMS adaptive algorithms have been the most commonly adopted approaches owing to the clarity of the mean-square-error cost function in terms of statistical concept and the simplicity for computation. However, a critical issue associated with both algorithms is the choice of the step-size parameter that is the trade-off between the steady-state misadjustment and the speed of adaptation. The aim of this paper is to investigate the performance, in terms of MSE, of random step-size NLMS algorithm in adaptive channel equalization. The proposed idea of this paper is that the adaptive filter will change its coefficients according to the NLMS algorithm in which its step size is multiplied by PN (pseudo random number generator) to pseudo randomize the step size.","PeriodicalId":247938,"journal":{"name":"2008 1st IFIP Wireless Days","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130327612","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
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