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Link Layer And Network Layer Security For Wireless Networks
White Papers There is an ongoing debate about where to address this challenge: at the link or network layer (OSI layers 2 or 3, respectively). This paper looks at the basic risks inherent in wireless networking and explains both approaches, but concludes that...
[June 26, 2007, 0:00]
Link Adaptation And Cross-Layer Signaling For Wireless Video-Streaming In A Shared Medium
White Papers So, on the one hand, a responsive link adaptation method should be employed in the radio. And, on the other hand, the video codec should be able to follow the changes in the maximum throughput due to wireless link performance variations.
[May 12, 2006, 0:00]
Link
Talkback OK, the anchor link didn't seem to work here, strange, so here is the URL - http://crave.cnet.co.uk/0,39029477,49290286-1,00.htm
[May 10, 2007, 14:38]
Link Adaptation Techniques For High-Speed Packet Data In Third Generation Cellular System
White Papers This paper reviews link adaptation techniques used in third generation wireless systems. An overview of the forward and reverse link channels in IS-856 is presented, including physical layer features allowing the implementation of link adaptation...
[January 17, 2006, 23:00]
Link-Adaptation-Enhanced Dynamic Channel Allocation For MIMO-OFDM Wireless Networks
White Papers This paper proposes a link-adaptation (LA)-based system infrastructure and develops the corresponding dynamic channel allocation (DCA) algorithm for downlink data transmissions over MIMO-OFDM wireless networks.
[March 28, 2005, 0:00]
Link Layer-Based TCP Optimisation For Disconnecting Networks
White Papers This paper discusses a link layer approach to improving TCP performance in the face of periodic network disconnections. A "smart link layer" employing repetition of selected packets at reconnection time is shown to improve TCP's utilisation of a...
[January 14, 2008, 23:00]
LLTD: Link Layer Topology Discovery Protocol
White Papers This paper describes how the Link Layer Topology Discovery (LLTD) protocol operates over wired (802.3 Ethernet) and wireless (802.11) media. As the protocol name suggests, the core functions of LLTD enable applications to discover the topology of a...
[December 28, 2006, 23:00]
Deloitte: People Are Still Weakest Security Link
News People remain the weakest security link for financial companies, according to consultancy firm Deloitte. The compromising of customers' systems continues to be the major cause of security breaches in financial institutions, according to the 2007...
[September 18, 2007, 15:52]
Analysis And Modeling Of Errors At The 802.11b Link Layer
White Papers This paper analyzes the errors observed at the link layer of an 802.11b network. The analysis at all supported bitrates (i.e.and 11 Mbps) establishes that the error patterns are not memoryless, and therefore, they exhibit a certain level of...
[October 20, 2005, 0:00]
Forward Link Coding And Modulation For Cdma2000 1XEV-DO (IS-856)
White Papers The IS-856 system delivers high spectral efficiency on the forward link by using dynamic link adaptation, hybrid ARQ and multi-user diversity scheduling. The channel coding/modulation scheme used on the forward link is designed to support...
[July 17, 2007, 0:00]
Performance Evaluation Of TCP Under Dynamic Allocation Scheme For Down Link Transmission Rate In W-CDMA Systems
White Papers That can provide high-bit-rate data communication service, so that a great number of packets conveyed by TCP will be transmitted over a wireless link. W-CDMA standardized in 3GPP (standardizing IMT-2000) allows dynamic allocation of transmission...
[December 5, 2007, 23:00]
Design Of IGP Link Weight Changes For Estimation Of Traffic Matrices
White Papers This paper presents a methodology to construct a collection of "snapshots" for an IP network, where each snapshot is described by a set of link weights that implicitly determines a routing configuration using an IGP routing protocol.
[January 6, 2005, 23:00]
Modeling The Impact Of Delay Spikes On TCP Performance On A Low Bandwidth GPRS Wireless Link
White Papers The goodput of a single TCP source is modelled on a low bandwidth lossless GPRS link experiencing sudden increases in RTT, i.e.delay spikes. Such spikes trigger spurious timeouts that reduce the TCP goodput.
[November 21, 2005, 23:00]
Cisco Connects Remote Kids To Schools Spectacular Rehearsal Via Live Interactive Video Link Up
White Papers In a first for the New South Wales Department of Education, a live interactive video link-up over the Cisco network was established at 2005's rehearsal between dance choreographer Peter Cook, who was on location at the Sydney Entertainment Centre...
[June 2, 2006, 0:00]
UK's Internet Link With America Boosted
News An ISP can link to any other ISP across the Web by any one of countless routes, but by establishing a link directly to and from one of the major interchange points, such as LINX, they can achieve much better performance.
[April 16, 2004, 14:30]
Maryville Technologies Utilizes BMC Software's Business Service Management Methodology To Link IT To Business Goals
White Papers The Challenge was to link IT components to business goals to ensure availability of applications that support business processes. Maryville Technologies chose to expand on their existing relationship with BMC Software to meet their clients' growing...
[September 16, 2005, 0:00]
The Impact Of Antenna-Array Receivers On The Reverse Link Performance Of CDMA2000 1xEV High Rate Packet Data System
White Papers This paper explores the possibility of improving the reverse link performance (in terms of coverage and data throughput) of IS-856 using adaptive antenna array receivers. CDMA2000 1xEV standard, also known as IS-856, is a next generation solution...
[January 17, 2006, 23:00]
Atrexx Adds Efficiency To The Satellite News Gathering Market: Online Event Calendar Promotes Up-Link And TV Production Facilities Worldwide
White Papers TV production and satellite up-link facilities for Satellite News Gathering (SNG) are installed on a specific occasion, such as a major sports events or cultural highlights, and for political or other incidents.
[July 27, 2006, 0:00]
Efficient Interference-Aware TDMA Link Scheduling For Static Wireless Networks
White Papers This paper studies efficient link scheduling for a multihop wireless network to maximize its throughput. Efficient link scheduling can greatly reduce the interference effect of close-by transmissions.
[August 10, 2007, 0:00]
Exploiting Path Diversity In The Link Layer In Wireless Ad Hoc Networks
White Papers An anycast mechanism is developed at the link layer for wireless ad hoc networks. The goal is to exploit path diversity in the link layer by choosing the best next hop to forward packets when multiple next hop choices are available.
[June 30, 2006, 0:00]
