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- Secure Wireless Broadband for Municipalities
- Prairienet, a community technology network at the University of Illinois U of I, in partnership with the East St. Louis Action Research Project, is playing a key role in helping community members in the city "bridge the digital divide". Students, faculty, and staff from the University are setting up a...
- Tags: Internet Access, University Of Illinois, Broadband, Wireless Broadband, Wi-Fi, Wireless
- Case studies
- Principles and Protocols for Power Control in Wireless Ad Hoc Networks
- Transmit power control is a prototypical example of a cross-layer design problem. The transmit power level affects signal quality and thus impacts the physical layer, determines the neighboring nodes that can hear the packet and thus the network layer, affects interference which causes congestion and thus affects the transport layer....
- Tags: University Of Illinois, Performance, Wireless, Performance Management, Human Resources, Workforce Management
- White papers
- Routing and Interface Assignment in Multi-Channel Multi-Interface Wireless Networks
- Multiple channels are available for use in IEEE 802.11. Multiple channels can increase the available network capacity, but require new protocols to exploit the available capacity. This paper studies the problem of improving the capacity of multi-channel wireless networks by using multiple interfaces. It considers the scenario when multiple interfaces...
- Tags: University Of Illinois, Channel, IEEE 802.11, Interface, Wireless LANs, Wi-Fi, Wireless, Strategy, Management
- White papers
- Cost Analysis of E-learning: A Case Study of a University Program
- Due to the advantages of e-learning, more and more schools and companies are adopting e-learning and increasing their investment in it. The increased investment has brought the need to demonstrate the cost-efficiency of the investments. This study reviewed the literature related cost drivers of e-learning programs and analyzed the cost-efficiency...
- Tags: University Of Illinois, Investment, Analysis, E-learning, Enterprise Software, Software
- Case studies
- A Hovercraft Testbed for Decentralized and Cooperative Control
- This paper describes a testbed facility - the HoTDeC HOvercraft Testbed for DEcentralized Control - developed by the authors at the University of Illinois, consisting of multiple autonomous hovercraft vehicles which are wirelessly networked. This facility provides a flexible and state-of-the-art testbed for experimentation with inter-networked vehicles and sensors for...
- Tags: University Of Illinois, Bluetooth, Wireless LANs, Wi-Fi, Wireless
- White papers
- Split-Channel Pipelined Packet Scheduling for Wireless Networks
- To reduce Medium Access Control MAC overhead and improve channel utilization, there has been extensive research on dynamically adjusting the channel access behavior of a contending station based on channel feedback information. This paper explores an alternative approach, named pipelined packet scheduling, to reduce the MAC overhead. MAC overheads can...
- Tags: University Of Illinois, Overhead, MAC, Network, Wireless Network, Wireless
- White papers
- Guaranteeing Throughput for Real-Time Traffic in Multi-Hop IEEE 802.11 Wireless Networks
- This paper presents a centralized rate assignment scheme for multi-hop flows in a static IEEE 802.11 wireless network. The rate assignment scheme takes into account not only which flows contend with each other but also how they contend. A centralized arbiter obtains this information, as well as flow requirements, and...
- Tags: University Of Illinois, Arbiter, Wireless LANs, Wi-Fi, Tools & Techniques, Wireless, Management
- White papers
- Full Circle: Simulating Linux Clusters on Linux Clusters
- BGLsim is a complete system simulator for parallel machines. It is currently being used in hardware validation and software development for the BlueGene/L cellular architecture machine. BGLsim is capable of functionally simulating multiple nodes of this machine operating in parallel. It simulates instruction execution in each node and the communication...
- Tags: University Of Illinois, Hardware, Linux Cluster, BGLsim, Linux, Open Source, Operating Systems, Software
- White papers
- Exploring the Energy-Latency Trade-Off of Broadcasts in IEEE 802.11 Power Save Networks
- Efficient information dissemination is essential for the operationality of sensor networks. However, one of the challenges to efficient information dissemination arises from only a random subset of nodes being active in any given time. This is mainly due to sensor networks employing power-saving techniques to compensate the energy constraints of...
- Tags: University Of Illinois, IEEE 802.11, Network, Node, Information Dissemination, Networking
- White papers
- An Analytic Study of Tuning Systems Parameters in IEEE 802.11e Enhanced Distributed Channel Access
- This paper derives, based on the analytical model developed by Cali et al., a multi-class model to study how to adaptively tune all the parameters in IEEE 802.11e EDCA and support service differentiation in WLANs. Through analytical modeling, it demonstrates that by assigning appropriate different transmission probabilities (or contention window...
- Tags: University Of Illinois, Parameter, Microsoft Access, IEEE, Construction, Research & Development, Wireless LANs, LANs, Business Operations, Wireless, Networking
- White papers
- MARP: A Multi-Agent Routing Protocol for Mobile Wireless Ad Hoc Networks
- Supporting mobility in a multi hop wireless environment like the MANET still remains a point of research, especially in the context of time-constrained applications. The incapacity of ad hoc networks to offer services of the likes of static or infratructured networks may be attributed to two major reasons. One, unpredictable...
- Tags: University Of Illinois, Mobile, Network, Environment, Mobility, Routing Protocol, Networking
- White papers
- A Game Theoretic Analysis of Intrusion Detection in Access Control Systems
- This paper presents a game-theoretic analysis of intrusion detection in access control systems. A security game between the attacker and the intrusion detection system is investigated both in finite and continuous-kernel versions, where in the latter case players are associated with specific cost functions. The distributed virtual sensor network based...
- Tags: University Of Illinois, Access Control, Intrusion Detection, Games, Real Estate, Network Security, Security, Personal Technology, Business Operations, Networking
- White papers 2008-01-01
- An Intrusion Detection Game With Limited Observations
- Intrusion Detection Systems IDSs monitor various events in a networked system and analyze them for signs of security problems. By extending the information security paradigm beyond traditional protective (e.g. firewalls) and reactive measures (e.g. virus and malware detection), they increase the controlling ability of the system administrator, and help him...
- Tags: Information Security, University Of Illinois, Malware, Intrusion Detection, Security, Cyberthreats, Spyware, Adware & Malware, Network Security, Viruses And Worms, Networking
- White papers 2005-12-29
- Protocol for Location Based Services developed by the University of Illinois
- Science Daily reported on May 21, 2007, that researchers* at the University of Illinois have developed a protocol for Geographic Information Systems GIS that was adopted by the International Standards Organization ISO earlier this year. This protocol forms what one researcher says is the "backbone" for Location Based Services...
- Tags: University Of Illinois, Researcher, ISO, Service, Location Based Services, Iso standards, Process Improvement, GIS, Quality, Business Operations, Software, Andy Moon
- Blog posts 2007-05-23
- A Framework for Querying Sensor Networks Using Mobile Devices
- An interplay between mobile devices and static sensor nodes is envisioned in the near future. This will enable a heterogeneous design space that can offset the stringent resource and power constraints encountered in traditional static sensor networks by taking advantage of the more powerful mobile devices. As such, this paper...
- Tags: University Of Illinois, Mobile, Network, Sensor, Mobile Device, Advertising & Promotion, Marketing
- White papers 2007-05-22
- The RTT Distribution of TCP Flows in the Internet and Its Impact on TCP-Based Flow Control
- It is well known that the performance of a TCP flow is affected by its Round-Trip Time RTT, i.e., the elapsed time between the instant a packet is released by the source to the instant the corresponding ack is received by the source. The distribution of RTTs can dramatically affect...
- Tags: University Of Illinois, TCP, Instant, Tcp/Ip, Internet, Networking
- White papers 2007-01-01
- Protocol for Location Based Services developed by the University of Illinois
- LBS - What are the issues?Location Based Services certainly show a lot of promise for services that are indeed necessary. EMS will be able to more easily find people in need of medical services, Search and Rescue teams will be able to track people down easily, assuming they have a...
- Tags: Andy Moon, LBS, Location Based Services, University of Illinois
- Discussion threads 2007-05-23
- Human-Centered Multimedia
- This paper takes a holistic view on the research issues and applications of Human-Centered Multimedia focusing on three main areas - multimodal interaction: visual (body, gaze, gesture) and audio emotion analysis; image databases, indexing, and retrieval: context modeling, cultural issues, and machine learning for user-centric approaches; and multimedia data: conceptual...
- Tags: University Of Illinois, Multimedia, Analysis, Research & Development, Business Operations
- White papers 2006-11-29
- Task Switching in Mobile Wireless Sensor Networks
- Mobile wireless sensor networks have the ability to monitor wide geographical areas. A suitable distribution of sensors can provide an optimal coverage according to a predefined criterion of the area of interest. On the other hand, mobile sensors can also move to the point of interest if necessary, thereby possibly...
- Tags: University Of Illinois, Mobile, Network, Sensor, Wireless, Advertising & Promotion, Marketing
- White papers 2006-11-22
- TCP-Illinois: A Loss and Delay-Based Congestion Control Algorithm for High-Speed Networks
- This paper introduces a new congestion control algorithm for high speed networks, called TCP-Illinois. TCP-Illinois uses packet loss information to determine whether the window size should be increased or decreased, and uses queueing delay information to determine the amount of increment or decrement. TCP-Illinois achieves high throughput, allocates the network...
- Tags: Algorithm, University Of Illinois, Network, Congestion, TCP, TCP-Illinois, Tcp/Ip, Engineering, Networking
- White papers 2006-10-01
