technique proposed
Improving Channel Estimation in OFDM Systems for Sparse Multipath Channels
White Paper The proposed algorithm uses a least squares (LS) technique for channel estimation and a generalized Akaike information criterion to estimate the channel length and tap positions. This paper describes an algorithm for sparse channel estimation... [02 Sep 2008]
Photos: The tech that holds up the net
Photo It's 40 years since the technique was invented by a team at the National Physical Laboratory (NPL) in Bushy Park, Middlesex, led by professor Donald Davies (pictured in 1974). The technique was adopted by scientists at US Department of Defence... [06 Aug 2008]
A Power-Aware and QoS-Aware Service Model on Wireless Networks
White Paper Thus, putting the WNI into sleep when it is idle is an effective technique to save power. In the proposed model, mobile terminals use proxies to buffer data so that the WNIs can sleep for a long time period. [04 Aug 2008]
An Approach to Enhance the QoS Support to Real-Time Traffic on IEEE 802.11e Networks
White Paper The proposed solution does not change the IEEE 802.11e protocol, but introduces a technique to reduce the number of collisions and therefore to use the channel more efficiently for real-time traffic, especially when the traffic load is high and... [18 Jul 2008]
BAndwidth Expansion of Narrowband Speech Using Non-Negative Matrix Factorization
White Paper The proposed technique utilizes a brief recording of simultaneous broad band and narrow band signals from a target speaker to learn a set of broad-band non-negative bases for the speaker. This paper presents a novel technique for the estimation of... [11 Jul 2008]
On the Scalability of Routing Integrated Time Synchronization
White Paper This paper presents the formal error analysis of a representative reactive technique, the Routing Integrated Time Synchronization protocol (RITS). To resolve these problems, a new class of reactive time synchronization techniques has been proposed... [11 Jul 2008]
A CSMA/CP MAC Protocols for IP Over WDM Metropolitan Area Ring Networks
White Paper This paper proposed a novel MAN network architecture and protocol by using the Wavelength Division Multiplexing (WDM) technique to efficiently share the network bandwidth among every network nodes. The proposed novel network architecture adopts... [11 Jul 2008]
Dynamic Load Balancing in WDM Networks
White Paper The proposed algorithm (RSNE - Reverse Subtree Neighborhood Ex-ploration) implements a local search technique where the basic step is the modification of a single entry in the routing table of a node. [10 Jul 2008]
An Approach to Adaptive Load Balancing for RFID Middlewares
White Paper Load balancing is a fundamental technique for providing scalability of systems by moving workload from overloaded nodes to under-loaded nodes. The proposed approach considers those characteristics of RFID middlewares to provide an efficient load... [10 Jul 2008]
Design of a Crawler With Bounded Bandwidth
White Paper The experimental results show the effectiveness of the proposed technique. This paper presents an algorithm to bound the bandwidth of a Web crawler. The crawler collects statistics on the transfer rate of each server to predict the expected... [10 Jul 2008]
A Low-Noise Fast-Settling PLL With Extended Loop Bandwidth Enhancement by New Adaptation Technique
White Paper Based on the proposed adaptation scheme, a 450MHz frequency synthesizer with a 200kHz channel spacing is implemented in 0.5µm CMOS process. A new adaptation scheme for low noise and fast settling Phase Locked Loops (PLL's) is presented. [10 Jul 2008]
A Proposed Architecture for Integrating Active Networks and MPLS
White Paper Multiprotocol Label Switching (MPLS) was originally intended as a fast switching technique for core networks, but proved to be very useful for providing traffic engineering and QoS Routing capabilities in the Internet. [10 Jul 2008]
A Novel Coding Technique to Minimise the Transmission Bandwidth and Bit Error Rate in DPSK
White Paper Comparative analysis between the two techniques reveals the advantages of the proposed technique. This paper proposes a novel coding technique that aims to reduce the Transmission Bandwidth (BT) and Bit Error Rate (BER) vis-a-vis Conventional... [08 Jul 2008]
Uplink Performance Evaluation of Multicode DS/CDMA Systems in the Presence of Nonlinear Distortions
White Paper A technique that uses a small number of parallel transmitted sequences is proposed for combating the nonlinearity. This technique can be modified to have a constant envelope for achieving further performance improvement. [03 Jul 2008]
On Antenna Design and Capacity Analysis for the Forward Link of a Multibeam Power Controlled Satellite CDMA Network
White Paper Under simplified yet realistic system assumptions, the proposed technique allows to derive the key satellite antenna parameters. This paper deals with the problem of rigorously analyzing the forward link behavior of a power controlled CDMA-based... [03 Jul 2008]
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