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Bluetooth Broadcasting Performance: Reliability and Throughput
White Papers The transmission of a Bluetooth broadcast packet is repeated several times to increase the reliability of broadcast. The paper analyzes the effects of baseband ACL packet types, each of which has a different size and error protection scheme, on the...
[May 19, 2006, 1:00]
Multi-Layer Network Design With Multicast Traffic and Statistical Multiplexing
White Papers The new packet services and applications are radically changing not only traffic demands but also the architecture of transport networks. Adding packet layer support into backbone nodes is considered an important opportunity by telecom carriers...
[January 12, 2008, 0:01]
An Analytical Model for Evaluating Utilization of TCP Reno
White Papers For this model an algorithm is derived to calculate the utilization and packet drop rate. These results show that the TCP Reno is superior to another version(Tahoe) by having higher percentage of utilization and lower percentage of packet dropping...
[December 27, 2007, 0:01]
Berners-Lee says no to internet 'snooping'
News The inventor of the World Wide Web, Sir Tim Berners-Lee, has attacked deep packet inspection, a technique used to monitor traffic on the internet and other communications networks. Speaking at a House of Lords event on the 20th anniversary of the...
[March 11, 2009, 15:11]
Selective-TCP for Wired/Wireless Networks
White Papers One of the main reasons for TCP's degraded performance in wireless networks is TCP's interpretation that packet loss is caused by congestion. However, in wireless networks, packet loss occurs mostly due to high bit error rate, packet corruption, or...
[December 6, 2007, 0:01]
Wireless Networking - Linksys WRT350N and Intel 4965AGN
Blog Comment If the packet coming from the computer is already formatted as 802.11x, it passes straight through the device. XP doesn't have that natively, the packet has to be processed or converted into 802.11n format by the wireless device first.
[November 12, 2008, 15:21]
A Model for TCP-Based Video Streaming
White Papers When a packet has not arrived by its playback time, a typical practice in this commercial system is that the client simply stops and waits for this packet, and then resumes playback. However, stopping playout due to late packet arrivals renders the...
[October 31, 2007, 0:00]
Ericsson and Orange sign £37m GPRS deal
News Mobile phone giants Ericsson and Orange (quote: ORA) have signed a deal worth £37m to supply GPRS (General Packet Radio Service) communications to the UK. According to a statement from Ericsson, the packet-based network will be implemented at the...
[March 24, 2000, 14:52]
Measurement-Based Models of Delivery and Interference in Static Wireless Networks
White Papers This paper presents practical models for the physical layer behaviors of packet reception and carrier sense with interference in static wireless networks. Seeding the models requires N trials in an N node network, in which each sender transmits in...
[May 23, 2007, 1:00]
IP Network Design With End-to-End QoS Constraints: The VPN Case
White Papers The traditional approaches to optimal design and planning of packet networks focus on the network-layer infrastructure, thus neglecting end-to-end Quality of Service (e2e QoS) issues, and Service Level Agreement (SLA) guarantees.
[January 12, 2008, 0:01]
Fast and Scalable Pattern Matching for Network Intrusion Detection Systems
White Papers High-speed packet content inspection and filtering devices rely on a fast multi-pattern matching algorithm which is used to detect predefined keywords or signatures in the packets. Hence specialized hardware-accelerated algorithms are required for...
[June 19, 2008, 1:01]
Designing a Hardware-Accelerated Firewall With Two 10 Gbps Ports
White Papers High-speed packet filtering should be one of the first steps in securing any modern computer network. The firewall is designed to process data at full speed, without any packet loss. However, solutions over 1 Gbps are practically impossible to...
[June 20, 2009, 1:21]
Next Generation OTN Transport Solution
White Papers A new transport technology is required to provide a converged transport solution for TDM and packet-based services. It enables the transfer of client signals (packet-based and legacy TDM services) over multiservice transport networks.
[May 29, 2009, 6:41]
Improving Distributed Firewalls Performance Through Vertical Load Balancing
White Papers This paper presents an extension to an existing hash based packet classification technique in order to improve its performance in a distributed network access control environment. The paper shows that such architecture can be modified so that flow...
[February 10, 2009, 0:20]
Perytons Antenna Diversity
White Papers Wireless communications at 2.4 GHz is subject to packet loss due to multi-path interference. They are therefore relatively robust, only suffering from the occasional loss of a single packet.on the other hand, is more sensitive to multi-path since...
[February 14, 2009, 0:24]
Channel-Adaptive Error Protection for Scalable Audio Streaming Over Wireless Internet
White Papers Streaming high-fidelity audio over networks with both bit errors and packet erasures is becoming increasingly important due to the emerging of wireless Internet. Considering the characteristic of scalable audio, a novel layered product code is...
[November 26, 2009, 23:00]
Stochastic Equilibrium Modeling of the TCP Dynamics in Various AQM Environments
White Papers This paper proposes stochastic packet level models for the NewReno and Tahoe versions of TCP during persistent data transmission. It is shown how throughput and the risk of experiencing time-out depend on the packet error probability.
[December 27, 2007, 0:01]
Rule-Based Anomaly Detection on IP Flows
White Papers Rule-based packet classification is a powerful method for identifying traffic anomalies, with network security as a key application area. This paper exploits correlations between packet and flow level information via a Machine Learning (ML...
[May 29, 2009, 1:19]
Improving TCP Performance Over 802.11 WLAN With Radio Network Feedback
White Papers A new technique is proposed that enables TCP to distinguish wireless packet losses from congestion related packet losses. This is achieved by introducing a wireless enhancement proxy (WENP) at layer 3 in the base station that monitors the TCP...
[December 27, 2007, 0:01]
Comparison of Transmission Properties of GPRS and Edge Standards
White Papers The present trend in the evolution of mobile communications is primarily towards data services, specifically packet-oriented and IP-protocol-based. In the case of the GSM network (2.5G) the paper speaks about the development of the General Packet...
[December 2, 2009, 23:00]
