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]
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]
M-QAM OFDM and PCC-OFDM Performance in the Presence of Phase Noise
White Paper This paper addresses the issue of OFDM and PCC-OFDM systems impaired by phase noise (PN). Phase noise in OFDM causes both ICI and common phase error (CPE). PCC-OFDM is a variation of... [26 Oct 2004]
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... [01 Oct 2008]
Managing Instant Messaging for Business Advantage: Phase 1: Assessing IM Usage
White Paper A 4-phase approach to secure instant messaging Instant Messaging (IM) worms and viruses are growing exponentially and spreading rapidly due to the real-time nature of IM. Effective IM management policies and procedures... [18 Mar 2009]
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]
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]
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]
Optimal Training Signals for MIMO OFDM Channel Estimation in the Presence of Frequency Offset and Phase Noise
White Paper The authors develop robust Mean-Square Error (MSE)-optimal training signal designs for multiple-input multiple-output orthogonal frequency-division multiplexing channel estimation with frequency offset and Phase Noise... [13 Apr 2007]
Real-Time Digital Carrier & Data Recovery for a Synchronous Optical Quadrature Phase Shift Keying Transmission System
White Paper In particular the design of DSP components is presented which are required to realize a 10 Gbaud synchronous optical Quadrature Phase Shift Keying (QPSK) transmission system. Additionally the measurement results of a... [07 Oct 2008]
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]
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]
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]
Ofgem to phase in Neta software
News The combined utilities regulator Ofgem will phase in the adoption of its software for the New Electricity Trading Agreements (Neta), according to the latest Reuters reports. Neta is an electronic system designed to... [04 Feb 2000]
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]
