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ZDNet Resources
- Integration of Runtime Profiling and Static Code Analysis in Linux
- This paper describes a method for profiling large systems software on a Linux platform. Based on runtime profiling results, the bottleneck source code gets analyzed statically, thus identifying the poor algorithms that caused the low performance. Employing of various tools used to profile the case study application leads to the...
- Tags: Runtime, University Of British Columbia, Analysis, Integration, Linux, Productivity, UNIX, Operating Systems, Open Source, Software
- White papers 2006-12-03
- Adaptive Joint Interference Cancellation and Space-Time Block Decoding for IEEE 802.11b WLAN Systems
- Digital transmission in Wireless Local Area Networks WLANs according to the IEEE 802.11b standard suffers from fading, InterSymbol Interference ISI, and Co-Channel Interference CCI. In this paper, receivers with Joint Interference Cancellation and time reversal Space-Time block Decoding JICSTD are proposed for an enhanced version of the IEEE 802.11b WLAN...
- Tags: IEEE 802.11, University Of British Columbia, Wireless LANs, Wi-Fi, Wireless, LANs, Networking
- White papers 2006-04-03
- Improved Channel Classification and Scheduling for Non-Collaborative Bluetooth/WLAN Coexistence
- This paper proposes two new techniques to enhance the existing Bluetooth and WLAN coexistence mechanisms. The first one is channel clustering, which is used to classify the channel status more accurately. The second one is called probabilistic channel visiting, which is used to more reasonably allocate the channel resources between...
- Tags: Technique, WLAN, University Of British Columbia, Wireless LANs, LANs, Productivity, Wi-Fi, Bluetooth, Wireless, Networking
- White papers 2006-03-16
- Connection Data Rate Optimization of IEEE 802.15.3 Scatternets With Multi-Rate Carriers
- The IEEE 802.15.3 MAC is designed for high data rate Wireless Personal Area Networks WPANs, in which all communications within a piconet work in a peer-to-peer manner. This paper analyzes the link rate distribution of a piconet, and shows that the expected piconet link rate for a UWB based 802.15.3...
- Tags: Optimization, P2P, University Of British Columbia, IEEE, Carrier, IEEE 802.15.3 MAC, Ultrawideband (UWB), Peer To Peer (P2P), Wireless, Internet
- White papers 2006-03-16
- Joint Optimal Channel Assignment and Congestion Control for Multi-Channel Wireless Mesh Networks
- The aggregate capacity of wireless mesh networks can be increased by the use of multiple channels. Stationary wireless routers are equipped with multiple Network Interface Cards NICs. Each NIC is assigned with a distinct frequency channel. This paper formulates the Joint Optimal Channel Assignment and Congestion Control JOCAC as a...
- Tags: Channel, Network, University Of British Columbia, Mesh Networking, Networking, Wi-Fi, Wireless
- White papers 2006-02-13
- Comparison Between Vertical Handoff Decision Algorithms for Heterogeneous Wireless Networks
- The next generation wireless networks will support the vertical handoff mechanism in which users can maintain the connections when they switch from one network to another (e.g., from IEEE 802.11b to CDMA 1xRTT network, and vice versa). Although various vertical handoff decision algorithms have been proposed in the literature recently,...
- Tags: Algorithm, Performance, Network, University Of British Columbia, Wireless Network, Handoff Decision Algorithm, Performance Management, Engineering, Wi-Fi, Wireless, Networking, Human Resources, Workforce Management
- White papers 2006-02-03
- Saturation Throughput of IEEE 802.11e EDCA Based on Mean Value Analysis
- The IEEE 802.11-based wireless LANs have been widely deployed for local area high-speed data access. The IEEE 802.11e amendment aims at providing QoS provisioning to support real-time multimedia traffic in WLANs. The Enhanced Distributed Channel Access EDCA is a QoS extension of the Distributed Coordination Function DCF in IEEE 802.11a/b/g....
- Tags: University Of British Columbia, IEEE, Analysis, Enhanced Distributed Channel Access, Wireless LANs, LANs, Wi-Fi, Wireless, Networking
- White papers 2006-01-21
- APHIDS++: Evolution of a Programmable Hybrid Intrusion Detection System
- With the rapid growth of the Internet and the ever-increasing security problems associated with its popularity, the need for protection against unwanted intruders has become essential. Antivirus software, intrusion detection systems, spyware and malware detectors are some of the protection mechanisms available to users today. The diversity of these manifold...
- Tags: Agent, Intrusion Detection System, University Of British Columbia, Real Estate, Intrusion Detection, Spyware, Adware & Malware, Cyberthreats, Security, Network Security, Viruses And Worms, Business Operations, Networking
- White papers 2005-10-01
- Who Should Fix This Bug?
- Open source development projects typically support an open bug repository to which both developers and users can report bugs. Large open source developments are burdened by the rate at which new bug reports appear in the bug repository. This paper presents a semi-automated approach intended to ease one part of...
- Tags: Developer, University Of British Columbia, Bug Repository, Open Source
- White papers 2005-09-09
- Open Journal Systems: An Example of Open Source Software for Journal Management and Publishing
- The purpose of this paper is to provide an insider's review of the journal management and publishing software, Open Journal Systems OJS, from the Public Knowledge Project, which the author directs at the University of British Columbia. The paper outlines the history, development, and features of OJS, including some of...
- Tags: Software, Open-source Software, University Of British Columbia, Tools & Techniques, Open Source, Management
- White papers 2005-08-12
- Space-Time Block Coding and Receive Diversity for WLAN IEEE 802.11b
- This paper investigates Time-Reversal Space-Time Block Codes (TR-STBCs) and receives diversity for Complementary Code Keying CCK modulation, which is employed in the Wireless Local Area Network WLAN standard IEEE 802.11b. The construction of TR-STBCs from orthogonal space-time block codes designed for flat fading channels for an arbitrary number of transmit...
- Tags: WLAN, University Of British Columbia, Wireless LANs, LANs, Wi-Fi, Wireless, Networking
- White papers 2005-02-02
- Project Manager to Project Leader? And the Rocky Road Between...
- The "planning" phases of a project involve the crystallizing of project goals, the development of the concepts and technical requirements and planning for implementation. These activities typically require a number of iterations and re-runs to flush out the "customer's needs" and optimize project effectiveness. A definition of project leadership is...
- Tags: Leader, University Of British Columbia, Leadership, Management
- White papers 2002-06-11
- InterPARES 2 Case Study Proposal: Computerization of Alsace-Moselle's Land Registry
- This proposed case study will investigate the creation of a computerized land registry in the Alsace-Moselle, a French regional administrative entity. The electronic registry will initially comprise the transcription of 40 000 existing paper registries (10 linear kms); each new database entry will be individually signed by a judge magistrat,...
- Tags: Registry, Digital Signature, University Of British Columbia, Digital Signatures, Authentication/Encryption, Digital Security, Security
- Case studies
- Vast Wireless Network Gives University of British Columbia an Electronic Edge
- The University of British Columbia UBC has embraced a comprehensive "e-Strategy" to help improve its teaching, to attract top students and faculty, and to keep operating costs under control. As a principle, UBC is taking advantage of the growing use of laptop and notebook computers and enabling student, faculty, and...
- Tags: Network, University, WLAN, University Of British Columbia, Wireless Network, LANs, Wireless LANs, Wi-Fi, Wireless, Networking
- Case studies
- Self Learning Call Admission Control for Multimedia Wireless DS-CDMA Systems
- The call admission problem for wireless CDMA systems is formulated as a semi-Markov decision process with constraints on the blocking probabilities and SIR signal to interference ratio. This paper shows that the optimal call admission policy can be computed via a stochastic gradient algorithm. Similar to neuro-dynamic programming algorithms the...
- Tags: Algorithm, Multimedia, University Of British Columbia, Engineering
- White papers
Additional Resources
- LHC scientists get death threats
- So it's come to this: Death threats against physicists. About what? The earth-destroying Large Hadron Collider, of course. Such is the angst that the American Nobel prize winning physicist Frank Wilczek of the Massachusetts Institute of Technology has even had death threats, said Prof Brian Cox of Manchester University,...
- Tags: Black Hole, Physicist, Scientist, Public Relations, Marketing, Corporate Communications, Richard Koman
- Blog posts 2008-09-05
- What the fight against cancer really needs
- What the fight against cancer really needsSadly this is where a problem existsCuring cancer would be great on the human level. But it doesn't make good business sense for doctors and pharmaceutical companies that rely on patients to make money. Much like many other diseases, it's more profitable to keep...
- Tags: cure, pharmaceutical company, patient, government
- Discussion threads 2008-09-05
- Enterprise password management really isn't a good idea
- Being at a university and working for a government department allows me to understand this concept well. There are shared resources here, there and everywhere, provided by different people and providers, all open to a "certain type" of person - employees or students. By having a single sign-on SSO point...
- Tags: Software, Password Management, Mozilla Firefox, Password, Single Sign-on, RoboForm Enterprise, Zack Whittaker
- Blog posts 2008-09-05
- From Chapter Two: The appliance computing culture
- The appliance computing culture earned its successes by focusing on the revenue generation side - and that, in turn, drove its own evolution to database technology, the "application as interfaces to data" view, and tight evolutionary links between University research groups and companies like DEC and DG. by Paul Murphy
- Tags: Job, Processor, Database, Mainframes, Recruitment & Selection, Servers, Hardware, Human Resources, Workforce Management, Paul Murphy
- Blog posts 2008-09-05
- Microsoft Student Technology Day UK
- Note Wednesday 1st October 2008, a little over 3 weeks away from today in your diary. Steve Ballmer, CEO of Microsoft and a whole load of influential partners and companies will be in London for the Microsoft Student Technology Day. It's a day about and for students,...
- Tags: Entrepreneurial, Microsoft Corp., Entrepreneurship, Management, Zack Whittaker
- Blog posts 2008-09-04
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