phase
RSS phasePhase Noise Suppression in OFDM Using a Kalman Filter
White Paper The performance of an OFDM system can be strongly degraded by the presence of random phase noise especially if a system design targets high data rates at high carrier frequencies. Phase noise causes... [18 Apr 2007]
Constant Envelope OFDM Phase Modulation: Spectral Containment, Signal Space Properties and Performance
White Paper A class of constant envelope OFDM phase modulated (OFDM-PM) signals is studied. The motivation behind OFDM-PM is to alleviate the high peak-to-average power ratio of conventional OFDM systems. Power density spectrum... [10 Apr 2008]
Data Recovery in Differentially Encoded Quadrature Phase Shift Keying
White Paper Information in a PSK modulation format is contained in the phase. For Gray-coded DEQPSK, this information is contained in the change in phase. With advances in DSP technology, fundamental trigonometric... [07 Oct 2008]
Fractional Rate Phase Detectors for Clock and Data Recovery
White Paper They show a generic Clock and Data Recovery (CDR) circuit that is based on a charge pump Phase-Locked Loop (PLL). The use of optical fiber as a transmission medium in communications networks allows very high bandwidth to... [07 Oct 2008]
Performance Degradation of OFDM and MC-CDMA to Carrier Phase Jitter
White Paper This paper analyses the effect of carrier phase jitter on the performance of OFDM and MC-CDMA waveforms. Assuming a multicarrier downlink through an AWGN channel, this paper investigates the impact of jitter... [11 Apr 2007]
Photos: Galileo's phase two goes into orbit
Photo It represents the next phase in the development of the satellite network the EU hopes will become the region's equivalent of GPS. The rocket containing the Giove-B satellite took off on Sunday, beginning the next... [29 Apr 2008]
Two-Phase Minislot Scheduling Algorithm for HFC QoS Services Provisioning
White Paper This paper proposes a two-phase, i.e.the scheduling sequence determination phase and the minislot assignment phase, minislot scheduling algorithm to reduce the QoS violation rate. In the... [30 Sep 2008]
WEEE enters final phase
News The government has announced the last phase of the implementation of the WEEE (Waste Electrical and Electronic Equipment) Directive. As of 1 July 2007, WEEE will come into force, with the aim of ensuring hardware that... [25 Jul 2006]
A Two-Phase Escape Analysis for Parallel Java Programs
White Paper This paper describes a two-phase offline/online interprocedural and inter-thread escape analysis that is faster and more accurate, on average, than previously published analyses. Thread escape analysis conservatively... [03 Jan 2009]
A Phase Noise Compensation Scheme for OFDM Wireless Systems
White Paper Phase noise causes significant degradation in the performance of Orthogonal Frequency Division Multiplexing (OFDM) based wireless communication systems. In the first stage, block-type pilot symbols are transmitted and... [13 Apr 2007]
HBOS zips up latest phase of procurement project
Case Study Banking giant HBOS has completed the latest phase of a supplier relationship management project which is key to achieving the cost savings the company promised would flow from the merger of Halifax and Bank of Scotland. [30 Jun 2005]
Receiver Algorithms for OFDM Systems in Phase Noise and AWGN
White Paper This paper addresses the subject of reducing the impact of phase noise on a QAM-OFDM system transmitting over an AWGN channel. Phase noise is known to have two effects on OFDM systems, rotating each... [14 Apr 2007]
A Giga-b/s CMOS Clock and Data Recovery Circuit With a Novel Adaptive Phase Detector
White Paper A novel phase detector is able to suppress this noise, and stable clock generation is achieved. Furthermore, the phase detector has an adaptive delay cell, and thus the optimal characteristic for fast... [06 Oct 2008]
HTTP Transfer Latency Over SCTP and TCP in Slow Start Phase
White Paper SCTP (Stream Control Transmission Protocol) is a recently proposed transport protocol with very similar congestion control mechanisms as TCP, except the initial congestion window during the slow start phase. [06 Dec 2007]
A Multiple-Rotating-Clock-Phase Architecture for Digital Data Recovery Circuits Using Verilog-A
White Paper This paper presents an oversampling Data Recovery (DR) architecture using Verilog-A that employs a novel Multiple-Rotating-Clock-Phase (MRCP) concept for its operation. The MRCP-DR architecture is a variant of the... [21 Oct 2008]
