TechRepublic Resources
- WiMAX Forum endorses new WiMAX lab at university of maryland
- WiMAX appears to be back on track. TechRepublic's executive editor Jason Hiner published some good news today in his post, "The new Clearwire: Mobile WiMAX in the US gets major cash infusion." It appears that Sprint and Clearwire are on the same page again and buoyed by major investments from...
- Tags: University Of Maryland, WiMAX, Wi-Fi, Wireless, Michael Kassner
- Blog posts 2008-05-07
- Vigil: Providing Trust for Enhanced Security in Pervasive Systems
- Computing today is moving away from the desktop, becoming diffused into the surroundings and onto the personal digital devices. Moreover, ad-hoc networks such as Bluetooth provide for spontaneous connectivity between computationally enabled devices within proximity to each other. In such pervasive computing environments, users expect to access resources and services...
- Tags: Device, University Of Maryland, Environment, Security
- White papers
- Energy Consumption in Data Analysis for On-Board and Distributed Applications
- Energy consumption is an important issue in the growing number of data mining and machine learning applications for battery-powered embedded and mobile devices. It plays a critical role in determining the capabilities of a broad range of applications such as space probes with onboard scientific missions, PDA-based monitoring of remote...
- Tags: Data Analysis, University Of Maryland, Battery, Energy Consumption, Engineering, PDAs, Databases, Handhelds, Hardware, Enterprise Software, Software, Data Management
- White papers
- Sniffing Out the Correct Physical Layer Capture Model in 802.11b
- Physical Layer Capture (PLC) in 802.11b refers to the successful reception of the stronger (higher signal strength at receiver) frame in a collision. PLC causes significant imbalance in the throughputs of sources. Existing 802.11b simulators, including NS-2 and Qualnet, assume that PLC occurs only if the reception of stronger frame...
- Tags: IEEE 802.11, University Of Maryland, NS-2 Simulator, Wireless LANs, Wi-Fi, Wireless
- White papers
- Research Institute at the university of maryland Offloads Large Library of Files to RAID Storage
- The National Foreign Language Center (NFLC) is a research institute at the University of Maryland that works to define current and future language needs of the United States and helps build capacity to meet those needs. The company wanted to find a cost effective RAID storage solution to offload a...
- Tags: University Of Maryland, National Foreign Language Center, RAID, Storage, Hardware
- Case studies
- Interactive Composition of Semantic Web Services
- Web services are designed to provide interoperability between diverse applications. Composing services dynamically to create new functionality is necessary when the required task cannot be realized directly by the existing services. It is an ongoing research activity to automate this process but accomplishing this goal with a human controller as...
- Tags: University Of Maryland, Problem, Web Service, Composition, Semantic Web, Web Services, Internet, Enterprise Software, Software
- White papers
- WLAN Workload Characterization
- This paper addresses the problem of workload characterization in a Wireless LAN (WLAN). Workload is generated by applications/users trying to carry out some of their functions. The attempt is to capture such application/user level characteristics from the information gathered at the MAC level. Developing an understandable description of the workload...
- Tags: University Of Maryland, Workload, WLAN, Wireless LANs, LANs, Wi-Fi, Wireless, Networking
- White papers
- Secure Routing and Intrusion Detection in Ad Hoc Networks
- Numerous schemes have been proposed for secure routing and Intrusion Detection for ad hoc networks. Yet, little work exists in actually implementing such schemes on small handheld devices. This paper presents a proof-of-concept implementation of a secure routing protocol based on AODV over IPv6, further reinforced by a routing protocol...
- Tags: Advertisement, University Of Maryland, Routing Protocol, Intrusion Detection, Network Security, Security, Networking
- White papers
- A Reactive Service Composition Architecture for Pervasive Computing Environments
- With the advancement in the wireless technology and pervasive computing, this paper envisions that in the near future, one will have information or services embedded in various wireless devices in the vicinity. However, wired infrastructure-based service discovery and composition architectures do not take into consideration factors arising from the possible...
- Tags: University Of Maryland, Environment, Computing, Architecture, Service Composition, Wi-Fi, Wireless
- White papers
- Enforcing Policies in Pervasive Environments
- Although undisrupted and continuous connectivity for wireless devices is hard or perhaps impossible to guarantee, connectivity of these devices has continued to improve and most devices nowadays are almost continuously connected to the internet via some form of wireless access. This improved connectivity enhances user experience but at the same...
- Tags: University Of Maryland, Environment, Security, Wi-Fi, Wireless
- White papers
- Small-Scale Compensation for WLAN Location Determination Systems
- To limit the radio map size and the time required to build the radio map, current WLAN location determination systems do not handle small-scale variations. This contributes to most of the estimation errors in the current systems. This paper proposes a general technique, the perturbation technique, to handle the small-scale...
- Tags: University Of Maryland, WLAN, Location Determination System, Wireless LANs, LANs, Productivity, Wi-Fi, Wireless, Networking
- White papers
- Issues in Data Management for Pervasive Environments
- A new vista is open for research in the area of data management in pervasive environments where mobile devices gather and exchange information from other devices based on their current context. Each device is both a data source and a data consumer pursuing its individual and collective tasks. The research...
- Tags: Device, University Of Maryland, Environment, Data Management, Storage, Databases, Hardware, Enterprise Software, Software
- White papers
- A Novel Mechanism for Data Streaming Across Multiple IP Links for Improving Throughput and Reliability in Mobile Environments
- With ubiquitous computing and network access now a reality, multiple network conduits will be available to mobile as well as static hosts (for instance, wired connections, 802.11 style LANs, Bluetooth, cellular phone modems, etc). Selection of the preferred mode of data transfer is a dynamic optimization problem depending on the...
- Tags: University Of Maryland, Mobile, Network, IP, Networking
- White papers
- A Highly Adaptable Infrastructure for Service Discovery and Management in Ubiquitous Computing
- The design outlined in this paper provides an infrastructure and communication protocol for presenting services to heterogeneous mobile clients in a physical space via some short range wireless links. This system uses a Communication Manager to communicate with the client devices. The Communication Manager can be modified easily to work...
- Tags: University Of Maryland, Ubiquitous Computing, XML, Tcp/Ip, Advertising & Promotion, Wi-Fi, Wireless, Software/Web Development, Web Development, Networking, Marketing
- White papers
- Students and Faculty Going "Mobile at Maryland" With Cisco Aironet Technology
- The University of Maryland, College Park, Maryland, is a public research university, and one of only 61 members of the Association of American Universities. In accordance with the Strategic Plan for the University of Maryland, the university is committed to creating and maintaining an electronic networking infrastructure that provides the...
- Tags: University Of Maryland, Mobile, Cisco Systems Inc., Cisco Aironet
- Case studies
- Scalable and Secure Data Collection Using Bistro
- Hotspots are a major obstacle to achieving scalability in the Internet; they are usually caused by either high demand for some data or high demand for a certain service. At the application layer, hotspot problems have traditionally been dealt with using some combination of increasing capacity, spreading the load over...
- Tags: HotSpot, University Of Maryland, Internet, Wireless
- White papers
- Cross-Layer Analysis for Detecting Wireless Misbehavior
- Intrusion Detections Systems (IDSs) in ad hoc networks monitor other devices for intentional deviation from protocol, i.e., misbehavior. This process is complicated due to limited radio range and mobility of nodes. Unlike conventional IDSs, it is not possible to monitor nodes for long durations. As a result IDSs suffer from...
- Tags: Monitor, University Of Maryland, Radio, Node, Wireless, Monitors & Displays, Advertising & Promotion, Hardware, Components, Marketing
- White papers
- Scalable Data Collection for Internet-Based Digital Government Applications
- Government at all levels is a major collector and provider of data. There are clear benefits to disseminating and collecting data over the Internet, given its existing large-scale infrastructure and wide-spread reach in commercial, private, and government domains. This paper focuses on the collection of data over the Internet, and...
- Tags: University Of Maryland, Data Collection, Internet
- White papers
- Pro-Active Key Distribution Using Neighbor Graphs
- Wireless networks, specifically those based on the IEEE 802.11 standard (Wi-Fi), are experiencing rapid growth due to their low cost and unregulated bandwidth. As a result of this tremendous growth, pockets of connectivity have been created similar to the first few years of the cellular systems. The logical next step...
- Tags: IEEE 802.11, University Of Maryland, Network, Domain, Mobility, Wireless LANs, Wi-Fi, Wireless
- White papers
- Mesh-of-Trees and Alternative Interconnection Networks for Single-Chip Parallel Processing
- Many applications have stimulated the recent surge of interest single-chip parallel processing. In such machines, it is crucial to implement a high-throughput low-latency interconnection network to connect the on-chip components, especially the processing units and the memory units. This paper proposes a new Mesh of Trees (MoT) implementation of the...
- Tags: University Of Maryland, Network, Interconnection Network, Networking
- White papers 2006-08-11
