Information centric networking icn as an emerging paradigm for the future internet has initially been rather focusing on bandwidth savings in wired networks, but there might also be some signi cant potential to support communication in mobile wireless networks as well as opportunistic network scenarios, where end systems have spontaneous. In collaboration with case western reserve university, we are investigating foundation architectural constructs that bring users into networked systems in a way that has to this point not been possible. In section 4, research issues on network centric and user centric caching optimization are introduced, including modeling behavior of the. Informationcentric networking nameddatanetworking ndn contentcentric networking ccn new communication model for internet designed for information delivery rather than data transport. Usercentric design procurement software smart by gep. In this paper, an overview of challenges and requirements for mobility management in user centric networks is given, and a new distributed and dynamic perapplication mobility management solution is presented. User mobility evaluation for 5g small cell networks based. More recently, motivated by the wide availability of portable computing devices and wireless communication infrastructure, and inspired by new user and content centric networking paradigms, projects such as socialnets 7. A positionbased opportunistic routing protocol was developed to reduce the latency incurred by local route recovery in ad hoc networks where the mobile user follows the random waypoint model. From opportunistic networks to opportunistic computing. Secure producer mobility in informationcentric network. The usercentered design ucd process outlines the phases throughout a design and development lifecycle all while focusing on gaining a deep understanding of who will be using the product.
Produce information that is easily understood and acted upon. Mobility models in adhoc networks open access journals. User centric privacy access control for mhealthcare. Psn also could be beneficial in an infrastructured network, with the fixed nodes providing services e. Opportunistic computing can be green servers, routers, communication channels are not. Additional gains can be achieved for mobile delay tolerant services when integrating opportunistic networking in device centric wireless networks. User centric modeling and processing for ubiquitous events using semantic capability models. In this case the end user is both a consumer and a provider of internet access. Pdf human mobility models for opportunistic networks. Performance modeling of opportunistic networks springerlink. Mobility support in usercentric networks springerlink. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Informationcentric networking in mobile and opportunistic. Information centric networks, mobility, seamless hando 1. Opportunistic networking is a communication paradigm based on proximity of mo bile users and their capability to store data on their devices, carry it through their mobility and forward it to other users. In adhoc wireless networks, mobility management faces many challenges. This paper surveys current literature for architectural designs, protocol elements, and research results that can be employed in user centric networks. Automatic filtering limited buffer space purge unwanted data. The user centric model developed is homecell communitybased mobility model hcmm. The next big thing in multicloud networking is here. Identify and respond to user needs through conducting user research while still meeting organizational goals.
The user centric 5g network is a one of the promising solution for next generation networks, and it will be a departure of traditional network centric architecture such as lte network. As for the resource allocation of edge computing, xiao and krunz 37 proposed. User mobility for opportunistic adhoc networking jing su masters of science graduate department of computer science university of toronto 2005 as mobile devices become increasingly pervasive and commonly equipped with shortrange radio capabilities, we observe that it might be possible to build a network based only on pairwise contact of users. First, we discuss the structure of human mobility and introduce a framework to study mobility at di. Mobility model describes mobility manners of nodes.
This paper goes over the concept of usercentric networking, as a paradigm for networking architectures usually located in the customer premises, and which is steadily changing the way the internet has been devised. Create systems that better facilitate transactions, internally and externally. Bruno batista and paulo mendes, ccn support for information centric opportunistic networking, ccnxcon2012, sophiaantipolis, france, 2012. However, for scalability and abstraction of the measured scenarios, synthetic mobility models are needed. Intermittent connect networks can be found in a village scenarios.
This paper firstly introduced, classifies, and compares the current familiar mobility models. D2d communication enables networking in an opportunistic manner. We first share our moti vation and describe our vision. The routing protocols must dynamically readjust to these changes in order to keep the accurate routes. The international standard 407 is the basis for many ucd methodologies. In addition, it is designed as general as possible to be used in various kinds of contextaware applications. User centric features agile design and the power of personas. However, the important measure aspects of user mobility and the callto mobility ratio has been neglected in the literature to date. Usercentered design ucd or user driven development udd is a framework of processes not restricted to interfaces or technologies in which usability goals, user characteristics, environment, tasks and workflow of a product, service or process are given extensive attention at each stage of the design process. A network bridge infrastructure that provides dynamic connectivity management service between the internet and unikernels and vms on pih.
This is especially true for networks whose nodes are mobile devices e. In this chapter, we consider a content distribution application scenario, aimed at the diffusion of data in autonomic computing environments, and investigate the way the social attitudes of mobile users impact the design of an autonomic opportunistic communication system. A class of manets characterised by a sparse density of nodes coupled with a relatively short range of radio communication, results in a network topology that is disconnected most of the time. User centric privacy access control for m healthcare. Cooperative autonomous vehicles paulo milheiro mendes. The proliferation of powerful mobile devices and ugc models is strictly intertwined. Softwaredefined networking enabled capacity sharing in. User behaviour and security in opportunistic networks.
Secure opportunistic computing privacy preserving group. Related works there exists many mobility models proposed for mobile wireless networks. Pelusi encoding for efficient data distribution in multihop ad hoc networks 2007. Subscriber mobility is intrinsically supported in icn architectures, since mobile. In many trust models in the literature, trust relies to some extent on. Opportunistic networks are humancentric because they opportunistically follow the. Case simulation of usercentric performance evaluation. The influence of node mobility in mobile ad hoc networks manets has significant implications for system performance. In the last decade a significant number of synthetic mobility models have been proposed.
Since there is a total absence of realistic data in the public domain, synthetic models for movement pattern generation must be used. Performance based usercentric dynamic mode switching and. On the basis of location functionalization, our model can gain a better approximation of human movement patterns. Usercentric design the success of any technology depends on how easy it is to implement and use. Finally, the hardware and software resources on the devices must be. With the surging of smartphone sensing, wireless networking, and mobile social networking techniques, mobile crowd sensing and computing mcsc has become a promising paradigm for crossspace and largescale sensing. The diagram below illustrates the flexibility offered by the application model to deploy to the user and choose the appropriate app delivery mechanism based on the user s device. Opportunistic computing can be green servers, routers, communication channels are not used selective networking energy savings. Through a user centric approach, agencies among other things can.
One of the important research challenges is to reduce the power consumed by icn networks because icns packet forwarding and packetlevel caching are powerhungry. Psns can enable socialbased applications, creating user centric networks. Margi, katia obraczka, and thierry turletti abstractin this paper, we discuss user centric networks ucns as a way of, if not completely solving, considerably. User generated informationevents anywhere, anytime large frequent. This trace is used as an input to the opportunistic network simulations. Opportunistic networking leverages the volume, heterogeneity and mobility of end user nodes to foster the dissemination of information in the absence of network infrastructure. The most recently hired researcher nuno ricardo garcia had a paper accepted in ieee transactions on pattern analysis and machine intelligence tpami. User provided networks disrupt internet communication models due to its user centricity. On the basis of location functionalization, our model can gain a.
Synthetic mapbased mobility traces for the performance. To achieve this, we develop a universal mobilecentric and opportunistic communications architecture, which integrates the principles of delay tolerant networking dtn and information centric networking icn in a common framework. Mobility model in opportunistic network is one of the important technologies. From a routing viewpoint, data exchange is rather challenging in such networks since paths between any pair of nodes may never exist or delay may be too long to be accepted by current data transport protocols. Icn information centric networking has received much attention due to its builtin functionalities such as caching and mobility support. Its important to note that the ucd process does not specify exact methods for. Usercentric mobility models for opportunistic n etworking 259 to build an a ccurate mobility model fo r oppor tunistic networks, but might be good enough to study other types of pervasive. Feasibility study opportunities in opportunistic computing. Mobility of the nodes causes the network topology to change. Ccn for opportunistic onehop content discovery has been investigated in an earlier work 18. Includes support for intermittent connectivity, opportunistic communications, push models i.
Usercentric mobility models for opportunistic networking. Recent development in sensor networks and mobile computing is gaining increasing interest from enterprises. Second, to achieve user centric privacy access control in opportunistic computing, we present an efficient attributebased access control and a novel nonhomomorphic encryptionbased privacy preserving scalar product computation ppspc protocol, where the attributedbased access control can help a medical user in emergency to identify other. Spurred by ubiquitous connectivity, fast bandwidth, and virtually limitless online storage, people are uploading and consuming data at a remarkable rate. Protocols, mobility models and tools in opportunistic. Exploring the internet of things the ubiquitous mobile. Usercentered design can be characterized as a multistage problemsolving process.
Multihop cellular networks mcn, can improve the capacity and efficiency of wireless networks, and will hence represent a significant element of the 5g ecosystem. For opportunistic networks several measured movement traces are available. The table below lists all available artefacts websites, tools, source code, data produced by the ucn consortium. Informationcentric mobile caching network frameworks and. If you are building killer apps time after time, your user base is growing, and time spent using your app is constantly increasing then this article is not for you. Rather than relegating users to an artifact of the application layer, we seek to accommodate users and their relationships at all layers of the system and to give users new controls over how their traffic is handled by the system. Usercentric definition of usercentric by medical dictionary. The demand for content oriented service and computeintensive service stimulates the shift of current cellular networks to deal with the explosive growth in mobile traffic. Elettronica, universit a di roma \tor vergata, rome, italy abstract. Pdf users mobility models for opportunistic networks. In the framework of the design of the future internet, some projects work on opportunistic networking related problems. Map user identities consistently to endpoints and apps across your entire network, from campus to data center.
Mobility, security, storage simple, fast, efficient, secure, authorized retrieval of information and content 5g technologies will be part of 5g ran. It is for modelling user mobility in mobile pervasive and opportunistic networks. Almost all work on mobile ad hoc networks relies on simulations, which, in turn, rely on realistic movement models for their credibility. There are also related e orts in creating a new content centric opportunistic networking architecture inspired by ccn 19. The convergence of social networking and mobile computing is expected to generate a new class of applications, called mobile social networking msn applications, that will be of significant importance for the coming years.
A campus based mobility model for opportunistic network springerlink. There is a staggering amount of online content available today on the internet. Contributions by uloop partners as well as invited tutorials by international experts in the field. Softwaredefined networking enabled capacity sharing in user. Section iii describes the detailed information about how the environmentaware mobility model works. An novel message delivery mechanism in opportunistic networks. Softwaredefinednetworkingenabled capacity sharing in user. In this paper, an overview of challenges and requirements for mobility management in user centric networks is given, and a new. Exploiting users social relations to forward data in opportunistic networks. Introduction content centric networkccn 1,2 has emerged as a new communication paradigm in which a content is accessed by a name of the content instead of an ip address of the host having the content. The shift from hostbased to contentbased locationindependent communication makes information centric networking icn an appealing technology to provide not only mobility, but also security and storage as native properties of the network architecture. Announcing a solution for any cloud, many clouds, or only cloud with new cisco aci capabilities.
A software with powerful, comprehensive functionality but complex and difficult to use can rarely drive the expected efficiency and business results. With the proposed framework, each medical user in emergency can achieve the user centric privacy access control to allow only those qualified helpers to participate in the opportunistic computing to balance the highreliability of phi process and minimizing phi privacy disclosure in mhealthcare emergency. Chiara boldrini, marco conti, andrea passarella user centric mobility models for opportunistic networking 2008 m. A campus based mobility model for opportunistic network. Sensor data services can provide finegrained information of the physical world and feed the event pr. User centric mobility models for opportunistic networking. Sofia phd 2004 is the team leader for industrial iot at fortiss research institute of the free state of bavaria for software intensive services and systems. Opportunistic networking is a communication paradigm based on proximity of mo bile users and their capability to store data on their devices, carry it through their mobility and forward it to other users they meet. Capacity sharing in usercentric networks ucns ucns typically refer to wireless network deployments where end users share network resources and cooperate to provide network services.
Firstly, characteristics of msns which lead to the exposure of patterns of interaction among mobile users are explored. It has been widely used in research on wireless network. Usercentric mobility models for opportunistic n etworking 265 properties extracted from available tra ces represen t very features of humans mobility, and how much they are artefacts of the. Indeed, msn enhances the capabilities of more traditional online social networking osn to a great extent by enabling. Opportunities in opportunistic computing ieee computer society. Andrea passarella iit cnr istituto di informatica e. Introduction content centric network ccn 1,2 has emerged as a new communication paradigm in which a content is accessed by a name of the content instead of an ip address of the host having the content. Empirically modeling how a multicore software icn router and. User centric applications expensive for users to adapt their mobility limited user attention.
User provided networks disrupt internet communication models due to its usercentricity. Survey on node mobility model for opportunistic network. The details of the evaluation are presented in section iv, and the results are presented and discussed in the last section. Bruno batista and paulo mendes, icon an information centric architecture for opportunistic networks 20, in.
Usercentric applications expensive for users to adapt their mobility limited user attention. Further, we shall use a privacypreserving matchmaking protocol for mobile social networks to identify members of the medical users group with similar symptoms. They focus on processes such as data collection and validation of mobility models. The online portal is a very convenient way for our customers to manage their insurance needs on a customerfriendly and user centric webpage, enabling real time transactions all under a high level of security, sgt general manager jawad mohammed said. In the last part of the paper, we present two alternative implementations of mobility cast on the android platform, and test their computational per. Tpami is the journal with the highest impact factor in the area of computer science if17. In this paper, we suggest a purposedriven user mobility model for opportunistic networks which, to our best knowledge, is the first work considering the factor of purposes behind users movement. Yet we may still wonder about the feasibility of such a computing. Mobility support is just beginning to emerge as a topic of research interest in the context of user centric networking. Social network founded mobility models for ad hoc network research abstract. According to 2, ucn network sharing models include. Energy benefits of opportunistic devicecentric wireless. Uloop is focused on the robust, secure, and autonomic deployment of usercentric wireless networks. The simple mobility models, such as random waypoint rwp and random walk rw are unable to capture the normal human.
Creating a usercentered approach in government usability. Complex dynamic networks are characterised by a stochastic nature where the behaviour of nodes is random and unknown. Perception is a fundamental function to enable autonomous vehicles, providing the vehicle with crucial information on the moving environment, including location of surrounding obstacles, velocities, and even predictions of their future states. Secondly, it classifies, and compares the current familiar mobility models. Designing mobility models based on social network theory. A purposedriven user mobility model for opportunistic.
Simplified, usercentric application management across. Our model is comprised of four parties as shown in fig. This wireless mobile ad hoc network is called an opportunistic network. Opportunistic computing opens an exciting avenue for research and development, one hitherto not fully exploited, and at the same time expands the potential of opportunistic networks for reallife application problems.
Human mobility models and opportunistic communication system. Informationcentric mobile caching network frameworks and caching. Information centric mobile caching network architectures have emerged in information centric networking as well as mobile cellular and adhoc networks deployed with caches. Mobility modeling is one of the key issues in opportunistic networking research.