Sponsored White Papers, Webcasts, and Downloads
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- Landmark Selection and Greedy Landmark-Descent Routing for Sensor Networks
- This paper study the problem of landmark selection for landmark-based routing in a network of fixed wireless communication nodes. It present a distributed landmark selection algorithm that does not rely on global clock synchronization, and a companion local greedy landmark-based routing scheme. The paper assumes no node location information, and...
- Tags: Network, Stanford University, Sensor, Node, Wi-Fi, Wireless
- White papers 2008-01-01
- Subchannel Assignment in OFDM Relay Nodes
- The paper considers a source-relay-destination link in which the relay node is allowed to reassign the input subchannels to different output subchannels. In particular, the authors consider a channel-aware relay node and compute the subchannel reassignment that optimizes a selected performance criterion. The numerical results suggest that optimized subchannel reassignment...
- Tags: Channel, Nokia Corp., Node, OFDM, Performance Management, Wireless, Human Resources, Workforce Management
- White papers 2006-02-23
- Cooperative Protocols for Multiple-Source Multiple-Relay Wireless Networks
- This paper studies the cooperative communications in wireless systems with ns source nodes, nr relay nodes, and single destination node. The paper proposes cooperative protocols and analyzes the system performance of the cooperation systems. For ns = 1; nr > 1, the nodes cooperate in a repetition way. The impact...
- Tags: Node, Wi-Fi, Wireless
- White papers 2007-04-02
- Load Balancing in Dynamic Structured P2P Systems
- This paper proposes an algorithm for load balancing in such heterogeneous, dynamic P2P systems. This simulation results show that in the face of rapid arrivals and departures of objects of widely varying load, this algorithm achieves load balancing for system utilizations as high as 90% while moving only about 8%...
- Tags: Algorithm, Load Balancing, P2P, Engineering
- White papers 2008-01-01
- CDMA Sparse Channel Estimation Using a GSIC/AM Algorithm for Radiolocation
- This paper considers channel parameter estimation in a sparse channel environment for radiolocation. The Generalized Successive Interference Cancellation GSIC algorithm is used to eliminate the Multiple Access Interference MAI. To adapt GSIC to sparse channels the Alternating Maximization AM algorithm is considered and the continuous time delay of each path...
- Tags: Estimation, Algorithm, CDMA, University Of California, Generalized Successive Interference Cancellation Algorithm, Engineering
- White papers
- A Genetic Optimization Algorithm to Solve the Problem of the Load-Balancing of Network Load
- An optimum genetic algorithm for balanced network load is proposed in this paper; the algorithm employs the natural number-coded and the selection crossover mutation operator. The algorithm carries on the entire spatial parallel search which concentrates on the high performance parts in order to improve the efficiencies and robustness of...
- Tags: Algorithm, Network, Load Balancing, Engineering
- White papers 2006-07-01
- Sensor Relocation With Mobile Sensors: Design, Implementation, and Evaluation
- Mobile sensors are useful in many environments because they can move to increase the sensing coverage. This paper presents a mobile sensor prototype in which the Mica2 sensor node is used to control the movement of the robot built with Commercial Off-The-Shelf COTS components. The authors use a sensor relocation...
- Tags: Pennsylvania State University, Mobile, Sensor, Advertising & Promotion, Marketing
- White papers 2007-07-23
- Routing in Optical and Non-Optical Networks Using Boolean Satisfiability
- Off late, most routing problems are solved using Dijkstra's shortest path algorithm. Many efficient implementations of Dijkstra's algorithm exist and can handle large networks in short runtimes. Despite these advances, it is difficult to incorporate user-specific conditions on the solution when using Dijkstra's algorithm. Such conditions can include forcing the...
- Tags: Algorithm, Network, Node, IEEE, Engineering
- White papers 2007-06-01
- An Energy-Aware Dynamic Clustering Algorithm for Load Balancing in Wireless Sensor Networks
- Energy efficient dynamic clustering offers a flexible paradigm to reconfigure the network in order to maximise network's life-time in resource constrained ad hoc sensor networks. The load profiles of Parent Nodes PNs can be used to define its current state as well as to predict potential failures caused by energy...
- Tags: Algorithm, Aware, Network, Load Balancing, Clustering, Wireless Sensor Network, Wireless, Engineering, Networking
- White papers 2006-06-01
- A Self-Managed Distributed Channel Selection Algorithm for WLANs
- This paper considers the problem of a wireless LAN selecting a channel to minimise interference with other WLANs. The focus is on interfering infrastructure-mode networks, where each Access Point AP or base station has a wired backhaul link. The paper introduces a new fully distributed and self-managed channel selection algorithm...
- Tags: Algorithm, WLAN, Wireless LANs, LANs, Wi-Fi, Wireless, Networking
- White papers 2005-12-15
- On Base Station Selection for Anycast Flow Routing in Energy-Constrained Wireless Sensor Networks
- Energy constraints have had a significant impact on the design and operation of wireless sensor networks. This paper investigates base station selection or anycast problem in wireless sensor networks. A wireless sensor network having multiple base stations data sink nodes is considered where each source node must send all its...
- Tags: Base Station, Network, Sensor, Wireless Sensor Network, Wi-Fi, Wireless, Networking
- White papers 2005-11-21
- Mitigating the Exposed Node Problem in IEEE 802.11 Ad Hoc Networks
- The IEEE 802.11 Distributed Coordination Function DCF MAC protocol continues to suffer from the hidden and exposed node problems which characterize CSMA-based protocols. The RTS/CTS exchange partially solves the hidden node problem, but the exposed node problem remains unaddressed. This paper describes enhancements to the IEEE 802.11 DCF MAC Protocol...
- Tags: IEEE 802.11, Node Problem, IEEE 802.11 Distributed Coordination Function MAC Protocol, Wireless LANs, Wi-Fi, Wireless
- White papers
- Relay Timer (zip)
- Relay Timer is a powerful tool for NCD ProXR relay controller boards. It supports up to 16 relay boards. Each board has 16 relays. Each relay can be programmed separately and turned on/off manually. The status of all relays can be shown. It can control the relays with very precise...
- Tags: Board, Relay, Serial Port Tool, Relay Timer, Corporate Governance, Business Operations, Corporate Law
- Software downloads 2008-03-24
- Robust Distributed Node Localization With Error Management
- Location knowledge of nodes in a network is essential for many tasks such as routing, cooperative sensing, or service delivery in ad hoc, mobile, or sensor networks. This paper introduces a novel iterative method Iterative Least-Squares ILS for node localization starting with a relatively small number of anchor nodes in...
- Tags: Network, Localization, Node, Association For Computing Machinery, Computation, Engineering, Networking
- White papers 2006-05-25
- PILOT: A Power-Aware, Location Driven Traffic Forwarding Algorithm for MANETs
- This paper presents PILOT, a new data-forwarding algorithm for ad-hoc networks, that takes into consideration the change in location of the destination over time. PILOT is also power-aware and the rate of increase of the probability of forwarding is closely tied to the current energy level at the node. The...
- Tags: Algorithm, University Of Pittsburgh, Engineering
- White papers 2006-03-09
- P2PNat Transport SDK (zip)
- P2PNat Transport SDK is a P2P tunnel library, following is the main features: Support ICE, STUN and Relay protocols for traversing NATs; Embedded STUN and Relay server; Select the best connection from multiple available paths between two endpoints; Provide reliable packets delivery mechanism based on ICE connections; and Encrypt/Decrypt packets...
- Tags: SDK, Connection, P2PNat Transport SDK, Peer To Peer (P2P), Engineering, Networking, Internet
- Software downloads 2008-01-18
- Extended TreeView (zip)
- Extended TreeView is flexible hierarchical .NET control for Windows Forms. Use it when you need to wrap text in the node or to arrange the tabular layout of the node content. You can display different content in the selected and in the normal node. You can Drag and Drop the...
- Tags: Node, AltaVim, Extended TreeView, Microsoft Windows, .Net, Application Servers, Middleware, Operating Systems, Software, Software Development, Software/Web Development, Enterprise Software
- Software downloads 2007-04-19
- Report: "A Distributed TDMA Slot Assignment Algorithm for Wireless Sensor Networks"
- The paper provides a solution for the problem of creating a TDMA schedule in a wireless sensor network. The proposed algorithm is tailored to networks with sensor nodes and computes a TDMA schedule in a distributed manner. Thereby an upper bound on the number of nodes in a neighborhood is...
- Tags: Algorithm, ETH Zurich, Network, TDMA, Sensor, Wireless, Engineering, Cellular Phones, Consumer Electronics, Personal Technology
- White papers 2004-12-14
- Weasel Simulation (dmg)
- A Mac OS X implementation of Richard Dawkin's Blind Watchmaker algorithm, designed to show the power of natural selection to achieve seemingly improbably results. The program evolves one string into another using selection and random mutation, demonstrating how fast a result can be achieved with comparatively little effort.
- Tags: Selection, Apple Mac OS X, Apple Mac OS, Engineering, Operating Systems, Software
- Software downloads 2005-07-12
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