Sponsored White Papers, Webcasts, and Downloads
TechRepublic Resources
- Energy-Aware Traffic Shaping for Wireless Real-Time Applications
- Sleep modes of wireless network cards are used to switch these cards into low-power state when idle, but large time-out periods and frequent wake-ups can reduce the utility of this approach. Modern processors offer the ability to switch CPU voltages or clock frequencies and therefore reduce CPU energy consumption, however,...
- Tags: Georgia Institute Of Technology, Aware, CPU, Wireless Network, Wi-Fi, Wireless, Processors, Semiconductors, Hardware, Components
- White papers
- Message Ferrying: Proactive Routing in Highly-Partitioned Wireless Ad Hoc Networks
- An ad hoc network allows devices with wireless interfaces to communicate with each other without any preinstalled infrastructure. Due to node mobility, limited radio power, node failure and wide deployment area, ad hoc networks are often vulnerable to network partitioning. A number of examples are in battlefield, disaster recovery and...
- Tags: Georgia Institute Of Technology, Network, Networking
- White papers
- Clustered OFDM With Adaptive Antenna Arrays for Interference Suppression
- This paper investigates clustered OFDM with adaptive antenna arrays for interference suppression. To calculate weights for interference suppression, instantaneous correlations of the received signals and channel responses corresponding to the desired signal have to be estimated. Therefore, a polynomial based parameter estimator is proposed to combat the severe leakage of...
- Tags: Georgia Institute Of Technology, Interference Suppression, OFDM, Construction, Wireless
- White papers
- Totally Blind Channel Estimation for OFDM on Fast Varying Mobile Radio Channels
- A new blind channel estimation scheme for OFDM-systems is proposed based on the ML-principle. By avoiding the use of second- and higher-order statistics, a very fast convergence rate is achieved. A novel approach is also proposed for resolving the phase ambiguity of the blind channel estimate without the need for...
- Tags: Georgia Institute Of Technology, Performance, Mobile, Radio, Ambiguity, Channel Estimation, OFDM, Advertising & Promotion, Wireless, Marketing
- White papers
- An Investigation of a Compromised Host on a Honeynet Being Used to Increase the Security of a Large Enterprise Network
- The growth of network intrusions on large enterprise networks continues to increase, creating an epidemic of compromised hosts. The deployment of firewalls and intrusion detection systems has not slowed the growth of intrusions to an acceptable rate. Investigating the compromise of a production machine is both difficult and time-consuming due...
- Tags: Georgia Institute Of Technology, Investigation, Enterprise Network, Network Security, Security, Viruses And Worms, Networking
- White papers
- On the Interaction Between Dynamic Routing in the Native and Overlay Layers
- Overlay networks have recently gained attention as a viable alternative to overcome functionality limitations of the Internet. This paper is concerned with scenarios where a dynamic routing protocol is employed in the overlay network to adapt overlay routing tables to changing network conditions. At the same time, the native network...
- Tags: Georgia Institute Of Technology, Network, Routing Protocol, Networking
- White papers 2008-01-01
- On Multi-Gateway Association in Wireless Mesh Networks
- Most traditional models of wireless mesh networks involve a mobile device connecting to the backbone through one of the available gateways in a wireless mesh network. This paper presents an alternate model, in which mobile devices are allowed to connect through more than one of the available gateways. It is...
- Tags: Georgia Institute Of Technology, Network, Wireless, Mesh Networking, Networking
- White papers 2008-01-01
- Bandwidth Estimation: Metrics, Measurement Techniques, and Tools
- In a packet network, the terms "Bandwidth" or "Throughput" often characterize the amount of data that the network can transfer per unit of time. Bandwidth estimation is of interest to users wishing to optimize end-to-end transport performance, overlay network routing, and peer-to-peer file distribution. Techniques for accurate bandwidth estimation are...
- Tags: Technique, Georgia Institute Of Technology, Tool, Bandwidth Estimation, Productivity
- White papers 2008-01-01
- Towards Stateless Core: Improving SIP Proxy Scalability
- The Third Generation Partnership Project (3GPP) specified the IP Multimedia Subsystem IMS standard. This standard uses the Session Initiation Protocol SIP to setup and teardown multimedia sessions through a potentially large chain of proxies. The IMS standard allows some core elements to be deployed as transaction stateful or stateless proxies....
- Tags: SIP, Georgia Institute Of Technology, Proxy, Scalability, IP, Session Initiation Protocol (SIP), Emerging Technologies
- White papers 2007-01-10
- A Cooperative Intrusion Detection System for Ad Hoc Networks
- Mobile Ad hoc NETworking MANET has become an exciting and important technology in recent years because of the rapid proliferation of wireless devices. MANETs are highly vulnerable to attacks due to the open medium, dynamically changing network topology, cooperative algorithms, lack of centralized monitoring and management point, and lack of...
- Tags: Georgia Institute Of Technology, Advertisement, Intrusion Detection System, Attack, MANET, Security
- White papers 2008-01-01
- Improving the Efficiency and Robustness of Intrusion Detection Systems
- With the increase in the complexity of computer systems, existing security measures are not enough to prevent attacks. Intrusion detection systems have become an integral part of computer security to detect attempted intrusions. Intrusion detection systems need to be fast in order to detect intrusions in real time. Furthermore, intrusion...
- Tags: Georgia Institute Of Technology, Intrusion Detection System, Intrusion Detection, Network Security, Security, Networking
- White papers 2007-12-01
- An Extension of the Square Root Law of TCP
- Using probabilistic scaling methods, the square root law of TCP to schemes is extended which may not be of the AIMD type. The results offer insight in the relationship between throughput and loss rate, and the time scale on which losses take place. Similar results are shown to hold in...
- Tags: Georgia Institute Of Technology, Loss, TCP, Tcp/Ip, Networking
- White papers 2007-09-05
- Modeling and Simulations of TCP MANET Worms
- Mobile Ad-hoc Networks MANETs are used for emergency situations like disaster - relief, military applications, and emergency medical situations. These applications make MANETs attractive targets for cyber - attacks and make the development of counter - measures paramount. The study of worm behavior is critical to the design of effective...
- Tags: Georgia Institute Of Technology, TCP, Worm, Modeling, Tcp/Ip, Cyberthreats, Networking, Viruses And Worms, Security
- White papers 2007-03-19
- The Origin of TCP Traffic Burstiness in Short Time Scales
- Internet traffic exhibits multifaceted burstiness and correlation structure over a wide span of time scales. This paper focuses on shorter scales, typically less than 100-1000 milliseconds. The objective is to identify the actual mechanisms that are mostly responsible for creating bursty traffic in those scales. It shows that TCP self-clocking,...
- Tags: Georgia Institute Of Technology, TCP, Tcp/Ip, Networking
- White papers 2007-01-01
- TCP-Planet: A Reliable Transport Protocol for InterPlaNetary Internet
- The space exploration missions are crucial for acquisition of information about the space and the universe. The entire success of a mission is directly related to the satisfaction of its communications needs. For this goal, the challenges posed by the InterPlaNetary Internet need to be addressed. Current TCP protocols have...
- Tags: Georgia Institute Of Technology, Internet, Performance, Performance Degradation, TCP, Tcp/Ip, Performance Management, Networking, Human Resources, Workforce Management
- White papers 2007-01-01
- ISP and Egress Path Selection for Multihomed Networks
- Multihoming has been used by stub networks for several years as a form of redundancy, improving the availability of Internet access. More recently, Intelligent Route Control IRC products allow multihomed networks to dynamically switch parts of their egress or ingress traffic between ISPs, also improving cost and performance. IRC products...
- Tags: Georgia Institute Of Technology, Network, Internet Service Provider, Internet Service Providers (ISPs), Internet
- White papers 2007-01-01
- Security Services in Wireless Sensor Networks Using Sparse Random Coding
- The task of providing security services for wireless sensor networks is not trivial due to the resource constraints of the sensor nodes. An adversary may launch a wide range of attacks including eavesdropping, message forgery, packet dropping, and noise injection. This paper proposes Random Coding Security RCS that provides protection...
- Tags: Georgia Institute Of Technology, Network, Sensor, Attack, Security, Wi-Fi, Wireless
- White papers 2006-07-07
- Optimizing Operand Transport Using Dynamic SIMDization in Multimedia Systems
- For multimedia processing, modern Instruction-Level Parallel ILP processors are faced with limited parallelism and inevitable communication issues, as silicon feature size decreases and pipelines become wider. This paper proposes and evaluates a dynamic optimization mechanism that exploits regular operand distribution patterns in multimedia applications. The proposed methodology; improves performance by...
- Tags: Georgia Institute Of Technology, Multimedia, Optimization
- White papers 2006-04-11
- OFDM Link Performance With Companding for PAPR Reduction in the Presence of Non-Linear Amplification
- Use of companding for Peak-to-Average-Power Ratio PAPR control is explored for a link involving a non-linear transmit power amplifier with Orthogonal Frequency Division Multiplexing OFDM. Specifically, the objective of the study was to determine if companding using u-law compression/expansion at the transmitter/receiver, respectively, provides end-to-end performance gains relative to a...
- Tags: Georgia Institute Of Technology, Performance, Transmitter, Amplifier, OFDM, Performance Management, Wireless, Human Resources, Workforce Management
- White papers 2006-02-02
- Implementation of an Anti-Collision Differential-Offset Spread Spectrum RFID System
- Radio Frequency IDentification RFID describes a system by which any product can be labeled with any information that can be accessed at any time without having direct contact with the item. This information can be stored on the item itself, making automation and control incredibly simple, fast, and noninvasive. This...
- Tags: Georgia Institute Of Technology, Solution, Spectrum, RFID, Wireless, Security, Biometrics
- White papers 2006-01-17
