channel
RSS channelChannel 4 switches on to SOA
News Channel 4 has opted for a service-orientated architecture (SOA) to power its planned video-on-demand (VoD) services. The Channel 4 VoD services will let viewers download films, catch-up on episodes of their favourite programmes and preview and... [11 Dec 2006]
Channel Aware Unequal Error Protection for Image Transmission Over Broadband Wireless LAN
White Paper In OFDM systems, channel estimation is a crucial module in coherent signal detection and receiver diversity combining. This paper investigates the leakage effect of pilot-symbol-assisted channel estimation techniques and proposes a channel-aware... [01 Nov 2004]
Channel Frame Error Rate for Bluetooth in the Presence of Microwave Ovens
White Paper The measured signals, treated as a rising noise floor, are then applied to a semi-analytic simulation to determine the probability of frame error rate (FER) per channel for six Bluetooth packet types. [23 Jun 2004]
Channel Management: The Key to Decreasing Costs and Improving Partner and Agent Loyalty
White Paper Siebel Systems invites you to view this FREE on demand Web seminar to learn how Siebel eInsurance 7, with Siebel Partner Manager and Siebel Agent Portal, enables you to: Reduce channel management and support costs by automating agent processes for... [24 Feb 2004]
Channel 4 Takes On Board the Enterprising Solution
White Paper Behind the scenes at Channel 4, a dedicated team of IT specialists are continuously looking at improvement measures to ensure innovative programming is backed up by resources to successfully deliver projects on time and to budget. [24 Feb 2004]
Channel Estimation and Prediction for Adaptive OFDM Downlinks
White Paper Channel estimation and prediction algorithms are developed and evaluated for use in broadband adaptive OFDM downlinks over fading channels for vehicular users. Accurate channel estimation may be obtained by using a combined pilot-aided and decision... [29 Oct 2004]
Channel Five switches on to virtualisation
Case Study Channel Five is revamping its IT infrastructure by embracing virtualisation as it adjusts to the increasingly digital and on demand media world. Virtualisation was seen as the way to go and since the beginning of 2006, 25 of the channel's 100... [22 May 2007]
Channel Estimation Techniques for OFDM Systems
White Paper Channel estimation is an important and necessary function for modern wireless receivers. With even a limited knowledge of the wireless channel properties, a receiver can gain insight into the information that was sent by the transmitter. [13 Apr 2007]
Channel Estimation and Optimal Power Allocation for a Multiple-Antenna OFDM System
White Paper This paper proposes combining channel estimation and optimal power allocation approaches for a multiple-antenna orthogonal frequency division multiplexing (OFDM) system in high-speed transmission applications. [26 Oct 2004]
Channel-Independent Synchronization of Orthogonal Frequency Division Multiple Access Systems
White Paper Unlike existing alternatives, the proposed time- and carrier-offset estimators do not require the transmission of known sequences and exhibit performance independent of the underlying channel zero locations. [26 Jul 2005]
Channel Estimation for OFDM Systems With Multiple Transmit Antennas by Filtering in Time and Frequency
White Paper This paper addresses pilot-symbol aided channel estimation (PACE) for orthogonal frequency division multiplexing (OFDM) based systems, with multiple transmit antennas. An approach is presented which estimates and separates NT superimposed signals... [21 Jul 2005]
Channel Estimation for D-BLAST OFDM Systems
White Paper This paper applies D-BLAST in Orthogonal Frequency Division Multiplexing (OFDM) systems and addresses the issue of channel estimation. Different from other MIMO-OFDM, where symbols at all tones are always available for decision-directed channel... [13 Apr 2007]
Channel Estimation Algorithm for Space-Time Block Coded OFDM Systems
White Paper Accurate channel estimates are needed in space-time coded OFDM systems for decoding purposes. In this paper, a novel channel tracking algorithm based on space-time coded training and information symbols is presented. [16 Oct 2004]
Channel Estimation for CDMA Multiuser Detection
White Paper This paper derives and evaluates a demodulation scheme in Code Division Multiple Access (CDMA) systems, which adaptively estimates hyperparameter (such as noisy channel property) based on Bayesian inference method. [07 Feb 2006]
Channel Estimation Techniques Based on Pilot Arrangement in OFDM Systems
White Paper In this paper, a full review of block-type and comb-type pilot based channel estimation is given. Channel estimation based on block-type pilot arrangement with or without decision feedback equalizer is described. [26 Jul 2005]
