Browsing by Subject "Computer Science, Information"
Now showing items 21-36 of 36
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A network aware privacy model for online requests in trajectory data
(2009)In this work, we propose a privacy model for online user requests on trajectory data in location based services by utilizing an underlying network of user movement. The privacy model has been implemented as a framework ... -
Node Isolation Probability for Serial Ultraviolet UV-C Multi-hop Networks
(2011)Non-line-of-sight optical wireless transmission, operated in the unlicensed ultraviolet UV-C band, has been recently suggested as an alternative means of communication. However, due to limited coverage, relayed UV-C networks ... -
A novel cache aware routing scheme for Information-Centric Networks
(2014)Information-Centric Networking (ICN) has attracted the attention of the research community, which has argued that content, instead of end-points, must be at the center stage of attention. The research issues addressed by ... -
Performance Analysis of a Laser Ground-Station-to-Satellite Link With Modulated Gamma-Distributed Irradiance Fluctuations
(2010)The performance of a ground-station-to-space laser uplink with a Gaussian-beam wave model subject to turbulence and beam wander effects is the topic of the present study. The modulated gamma distribution is used to describe ... -
PREDICTION IN WIRELESS NETWORKS BY MARKOV CHAINS
(2009)Discrete sequence modeling and prediction is an important goal and a challenge for pervasive computing. Mobile clients' data request forecasting and location tracking in wireless cellular networks are characteristic ... -
Providing quality of service guarantees in wireless LANs compliant with 802.11e
(2005)Quality of Service (QoS) support is a key attribute of a broadband communication system and is missing in 802.11-based wireless LANs. Recognizing the need, Task Group e (TGe) is work-ins! towards 802.11e, an evolution of ... -
Routing and scheduling connections in networks that support advance reservations
(2008)A key problem in networks that support advance reservations is the routing and time scheduling of connections with flexible starting time and known data transfer size. In this paper we present a multicost routing and ... -
Social Network Analysis Concepts in the Design of Wireless Ad Hoc Network Protocols
(2010)This article presents a survey of ad hoc networking protocols that have used concepts such as centrality metrics and community formation from the area of social network analysis, which is seen as a network measurement task ... -
Storage planning and replica assignment in content-centric publish/subscribe networks
(2011)Content-centric publish/subscribe networking is a flexible communication model that meets the requirements of the content distribution in the Internet, where information needs to be addressed by semantic attributes rather ... -
Time-optimized user grouping in Location Based Services
(2015)We focus on Location Based Services (LBSs) which deliver information to groups of mobile users based on their spatial context. The existence (and non-trivial lifetime) of groups of mobile users can simplify the operation ... -
A tool for calculating energy consumption in wireless sensor networks
(2005)Energy and total useful lifetime are primary design concerns of fundamental importance, in a variety of real life applications, where the deployment of a Wireless Sensor Network is desired. In this paper the authors introduce ... -
Using a HAP Network to Transfer WiMAX OFDM Signals: Outage Probability Analysis
(2013)Transferring wireless broadband services across extremely far distances on Earth is usually implemented nowadays either by ground-based or satellite communications. Terrestrial networks require, however, heavy installation ... -
VIPSec defined
(2008)Secure end-to-end information exchange is a constant challenge in electronic communications. Novel security architectures and approaches are proposed constantly, to be followed by announcements of sophisticated attack ... -
Weather Effects on FSO Network Connectivity
(2012)The use of relays is one of the most promising methods for mitigating impairments of the performance of free-space optical (FSO) systems and extending their limited transmission range. However, several factors contribute ... -
WeR-trees
(2007)R-tree has been proven to be one of the most practical and well-behaved data structures for accommodating dynamic massive sets of low dimensionality geometric objects and conducting a very diverse set of queries on such ...