无线互联科技最新文献_第5页

A novel high gain monopole CPW antenna for WiMAX applications 一种用于WiMAX应用的新型高增益单极CPW天线

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940824

V. D. Reddy, S. Raghavan

引用次数: 1

Interoperability procedures between access technologies using IEEE 802.21 使用IEEE 802.21的接入技术之间的互操作程序

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940886

Alexandra Vulpe, S. Obreja, O. Fratu

{"title":"Interoperability procedures between access technologies using IEEE 802.21","authors":"Alexandra Vulpe, S. Obreja, O. Fratu","doi":"10.1109/WIRELESSVITAE.2011.5940886","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940886","url":null,"abstract":"Next generation wireless communication will integrate the heterogeneous wireless technologies in order to provide better services, with improved quality, higher coverage, and seamless access to the system resources. Providing support for the connection transfer between different access technologies — vertical handover — together with radio resources management for the integrated networks are the major integration challenges. IEEE has introduced the 802.21 standard which provides a technology-independent abstraction layer. It provides a framework to be used as a starting point for the integrated wireless networks development. In this paper, a solution, built on the IEEE 802.21 — Media Independent Handover — framework is presented, along with some aspects related to the implementation of the system modules in QualNet simulator. The proposed system tries to offer a solution for both the vertical handover process and radio resource managemnet. The paper focuses on system functionalities evaluation for the vertical handover process implemented on a heterogeneous wireless network, implemented with WiMAX and WiFi technologies. The experiments were performed on a simulated platform implemented in QualNet.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76373819","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: 11

Performance analysis of IP Multimedia Subsystem (IMS) signaling in heterogeneous access networks 异构接入网中IP多媒体子系统信令性能分析

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940868

Shyam S. Wagle, N. Doulamis, Minesh Ade, M. Ghazanfar Ullah

{"title":"Performance analysis of IP Multimedia Subsystem (IMS) signaling in heterogeneous access networks","authors":"Shyam S. Wagle, N. Doulamis, Minesh Ade, M. Ghazanfar Ullah","doi":"10.1109/WIRELESSVITAE.2011.5940868","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940868","url":null,"abstract":"IP Multimedia Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. The main beautiful feature of the IMS is convergence of fixed and wireless networks to provide voice, data and variety of multimedia services. It provides the an opportunity to build open IP based service platform that will enable an easy and efficient deployment of new multimedia communication services mixing voice and data services. IMS is the best solution for any telecom operators who are providing both wired and wireless service for providing the convergence service but proper co-ordination among the different access network is must for the heterogeneity of the service. So, it is very important to know the performance of IMS in the different access networks (Wired and Wireless networks). In this paper, we analyze the signaling performance in various access networks. Basically, in this paper we compare the session setup time and release time between two end user equipments (UEs) having same access networks with same access technology and having different access networks with different access technologies through IMS network.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77589591","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

RIWCoS: Possible approach for the reconfiguration of the hybrid wireless access networks RIWCoS:混合无线接入网络重新配置的可能方法

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940937

O. Fratu, A. Boucouvalas, L. Gavrilovska, R. Prasad

引用次数: 4

Design and simulation of planar Minkowski fractal antennas 平面闵可夫斯基分形天线的设计与仿真

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940935

S. Suganthi, K. Tharini, P. S. Sarankumar, S. Raghavan, D. Kumar

引用次数: 22

A convergent framework for QoS-driven social media content delivery over mobile networks 为移动网络上的qos驱动的社交媒体内容交付提供了一个聚合框架

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940846

S. Mohan, Nitin Agarwal

{"title":"A convergent framework for QoS-driven social media content delivery over mobile networks","authors":"S. Mohan, Nitin Agarwal","doi":"10.1109/WIRELESSVITAE.2011.5940846","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940846","url":null,"abstract":"Advanced socio-technical systems especially handheld and mobile devices are no longer esoteric; rather they are a part of daily life for billions of people worldwide endowing a sense of every time connectedness. With larger bandwidths, powerful processing capabilities, better displays, user friendly and haptic interfaces, mobile platforms holds a promising future for social applications. However, advances in web technologies have led to the development of complex set of applications that demands a nimble and robust architecture that is adaptive to the network constraints. This has resulted in a favorable playground for mobile-aware social applications offering practitioners and researchers key architectural challenges with numerous fledgling opportunities. In this article, we elaborate upon the challenges and provide a framework for incorporating cross-layer interaction between social applications and wireless network capabilities. Specifically, we address the problem of delivering social network content to mobile devices with the required QoS. We propose a generic framework that addresses this issue. We also discuss some suitable wireless network protocols that could be utilized to provide QoS for the delivery of content generated by social applications and for reliable interactions between mobile users and social applications followed by possible future research directions.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86811044","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

An enabler of interoperability in heterogeneous wireless networks 在异构无线网络中实现互操作性

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940885

O. Barbu, O. Fratu

引用次数: 3

Proposed embedded security framework for Internet of Things (IoT) 物联网(IoT)嵌入式安全框架

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940923

S. Babar, Antonietta Stango, N. Prasad, Jaydip Sen, R. Prasad

引用次数: 266

CBDS: A Cooperative Bait Detection Scheme to prevent malicious node for MANET based on hybrid defense architecture 基于混合防御体系结构的协同诱饵检测方案

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940839

Jian-Ming Chang, Po-Chun Tsou, H. Chao, Jiann-Liang Chen

{"title":"CBDS: A Cooperative Bait Detection Scheme to prevent malicious node for MANET based on hybrid defense architecture","authors":"Jian-Ming Chang, Po-Chun Tsou, H. Chao, Jiann-Liang Chen","doi":"10.1109/WIRELESSVITAE.2011.5940839","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940839","url":null,"abstract":"With the widespread use of mobile devices, the users of Mobile Ad hoc network (MANET) become increasingly more, which results the rapid development of the technology. Due to MANET don't need the infrastructure, it can deploy fast and conveniently in any environment. Because of its easy deployment features, in addition to used in personal area networks, home area networks and so on. Specially, MANET suit for military operations and the emergent disasters rescue that need to overcome terrain and special purpose in urgent. However the dynamical network topology of MANET, infrastructure-less property and lack of certificate authority make the security problems of MANET need to pay more attention. The common routing protocols in current such as DSR AODV and so on almost take account in performance. They don't have the related mechanism about detection and response. Aiming at the possible attacks by malicious nodes, based on the DSR protocol, this paper presented a mechanism to detect malicious nodes launching black/gray hole attacks and cooperative black hole attacks, known as Cooperative Bait Detection Scheme (CBDS). It integrates the proactive and reactive defense architectures, and randomly cooperates with a stochastic adjacent node. By using the address of the adjacent node as the bait destination address, it baits malicious nodes to reply RREP and detects the malicious nodes by the proposed reverse tracing program and consequently prevents their attacks.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89826208","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: 93

HE-30 Aluminum ruggedised EMI enclosure for GPS based Vehicle Tracking System HE-30铝制坚固的电磁干扰外壳，用于基于GPS的车辆跟踪系统

无线互联科技 Pub Date : 2011-07-05 DOI: 10.1109/WIRELESSVITAE.2011.5940812

S. Jog, M. Sutaone, V. Badawe

{"title":"HE-30 Aluminum ruggedised EMI enclosure for GPS based Vehicle Tracking System","authors":"S. Jog, M. Sutaone, V. Badawe","doi":"10.1109/WIRELESSVITAE.2011.5940812","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940812","url":null,"abstract":"Main objective of this research proposal is to develop ruggedised Communication System. The research work is undertaken after adopting integrated approach to meet the stringent requirements of equipment design methodologies and compatibility for EMI/EMC, ESS, Environmental test conditions, Ingress protection, Corrosion and Mould growth protection standards. The different EMI methodologies are explored and some of them are implemented. The ruggedised EMI enclosures using Aluminum HE-30 cabinets, conductive gaskets and Copper foil with conductive adhesives are designed for Global Positioning System (GPS) based Vehicle Tracking System (VTS) Transmitter and Receiver boards. The boards with enclosures are tested in national EMI test laboratory. The measured radiation level could be restricted to around 20 dB μV/m in horizontal and vertical directions. The radiation levels are also checked with the help of Agilent Spectrum Analyzer E4411-B and close field EMI Probes 11940A / 11941A with and without enclosure. From the observed radiation in dbm, Field strength (E), Field Strength (H), and Power Density (S) are calculated and compared with standard MIL-STD-461E. By the implementation of enclosure, the radiated emission reduced by around 30dB to 50dB. The enclosure meets compatibility requirements for radiated emission as per MIL-STD-461E.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91010380","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