BackOff
Downloads BackOff is a backup utility for Palm OS 5.0 or greater that backs up user selected databases every time the device is powered off. It will also backup all the databases in your PDA 10 at a time, or backup the most recently changed databases.
[November 4, 2007, 8:01]
Performance Improvement Of 802.11 Wireless Access Network With TCP ACK Agent And Auto-Zoom Backoff Algorithm
White Papers Together with the TCP ACK agent scheme, an auto-zoom backoff algorithm is proposed to further improve the access performance. This paper proposes two schemes to improve the TCP performance over 802.11 WLAN access protocol.
[February 9, 2006, 23:00]
A New Backoff Algorithm For The IEEE 802.11 Distributed Coordination Function
White Papers In the IEEE 802.11 Wireless Local Area Networks (WLANs), network nodes experiencing collisions on the shared channel need to backoff for a random period of time, which is uniformly selected from the Contention Window (CW).
[June 13, 2006, 0:00]
NTA Monitor UDP Backoff Pattern Fingerprinting White Paper
White Papers This paper discusses how it is possible to determine which implementation of a UDP service is being used from the retransmission backoff pattern. It uses IKE (Internet Key Exchange) as an example UDP service, which can be identified in this way...
[February 22, 2005, 23:00]
Performance Evaluation Of An Adaptive Backoff Scheme For WLAN
White Papers In this paper, a simple self-adaptive contention window adjustment algorithm for 802.11 Wireless Local Area Networks (WLAN) is proposed and analyzed. Numerical results show that the new algorithm outperforms the standard 802.11 window adjustment...
[February 9, 2006, 23:00]
Jointly Coordinating ECN And TCP For Rapid Adaptation To Varying Bandwidth
White Papers By making routers mark packets in a much more aggressive manner, the authors are able to achieve fast backoff in the network without resorting to TCP's current drastic step of halving the congestion window.
[January 14, 2008, 23:00]
Location-Based Flooding Techniques For Vehicular Emergency Messaging
White Papers In addition to application-layer backoff delay and duplicate message suppression mechanisms, location-based backoff techniques have been proposed for vehicular networks. This paper analyzes the scalability of message flooding protocols in networks...
[August 10, 2007, 0:00]
A Novel Receive Algorithm For Clipped OFDM Signals
White Papers The transmit Power Amplifier (PA) and other elements in the signal path have to be operated at high Input Power BackOff (IBO), which decreases the efficiency of the PA and leads to higher costs. A major drawback of the Orthogonal Frequency-Division...
[April 18, 2007, 0:00]
The Effectiveness Of Signal Clipping For PAPR And Total Degradation Reduction In OFDM Systems
White Papers The impact of Input Power Backoff (IBO) of a nonlinear Power Amplifier (PA) is evaluated. An effective PAPR reduction scheme should provide one of the two equivalent Enhancements; a reduced error floor at a given backoff, or; a reduced required IBO...
[April 11, 2007, 0:00]
Performance Analysis Of IEEE 802.11 MAC Protocols In Wireless LANs
White Papers In this paper, by modeling the exponential backoff process as a Markov chain, one can use the signal transfer function of the generalized state transition diagram to derive an approximate probability distribution of the MAC layer service time.
[January 17, 2006, 23:00]
Modeling And Analysis Of Slow CW Decrease For IEEE 802.11 WLAN
White Papers Several parameters are investigated such as the number of stations, the initial CW size, the decrease factor value, the maximum backoff stage and the coexistence with the RequestToSend and ClearToSend (RTS/CTS) mechanism.
[May 24, 2006, 0:00]
A Priority-Based Distributed Call Admission Protocol For Multi-Hop Wireless Ad Hoc Networks
White Papers The paper develops a priority-based delay model for the adaptive backoff scheme. Ad hoc networks have been proposed for a variety of applications where support for real time, multimedia services may be necessary.
[August 13, 2007, 0:00]
Comparison Of Distributed Fair QoS Mechanisms In Wireless LANs
White Papers The proposed mechanism is based on deficit round robin scheduling and translates the user throughput requirements into the 802.11 MAC InterFrame Space and Backoff Interval parameters. It is well known that the Distributed Coordination Function (DCF...
[May 4, 2006, 0:00]
'Serious Vulnerability' Found In Nortel VPNs
News It's possible to identify Nortel VPN routers using UDP backoff fingerprinting and an attacker only needs to send a single, small UDP packet to identify the remote systems. A security research company is warning Nortel customers to upgrade their VPN...
[June 1, 2005, 9:30]
