Technical articles A selection of technical papers and articles, relevant to your industry.
Packaging  | WEEE & ROHS Directive - Actions you need to take
Produced by Envirowise in support of DTI and DEFRA initiatives on WEEE and ROHS (November 2003)
Directive on waste on electrical and electronic equipment (WEEE) and Directive on the restriction of use of certain hazardous substances (ROHS) in electrical and electronic equipment - A guide giving details on actions you need to take.
Source: | | | Novel techniques for packaging and interconnects in mm-wave communication front-ends
W Menzel, University of Ulm, and J Kassner, IMST (May 2000)
After a short review of some general problems and techniques with respect to interconnects and packaging for mm-wave front-ends, details of a research program are presented, mainly with the example of components for a 28 GHz communication front-end.
Source: IEE Seminar on Packaging and Interconnects at Microwave and mm-Wave Frequencies, London, June 2000 |
Photonic Access Technologies | | Optimisation of a MAC protocol for delay sensitive services in an ATM passive Optical Network
M R Handley and J M Senior, University of Hertfordshire and M S Leeson, University of Warwick (December 2002)
This paper reports the optimisation of this type of protocol by minimising the required overhead needed to meet cell delay and CDV targets set in ITU standards. Simulation results using a number of traffic scenarios demonstrate that a frame length of 0.766 ms divided into 10 segments is sufficient to meet these targets.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Provisioning IP Traffic Across Mac Based Access Networks Of Tree Topology
N Leligou, C Matrakidis and J D Angelopoulos, National Technical University of Athens (December 2002)
We present a mechanism for dynamic binding IP and layer 2 addresses, which offers high connection flexibility to both the customer and the access system operator. The requirements that these functions impose on the PON modules are also considered.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Harmonics, A Novel Optical System
A Geha, Mason Communications and J Wellen, Lucent Technologies (December 2002)
HARMONICS is a hybrid access network, combining an Optical Feeder Network with multiple access technologies. The acronym, HARMONICS, refers to 'Hybrid Access Re-configurable Multi-wavelength Optical Networks for IP-based Communication Services'. HARMONICS is a dynamic and flexible system.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Optical Access Key featuring Low-power Electronic Adaptive Function (OAKLEAF)
C H Hum, S D Walker and T Quinlan, University of Essex (December 2002)
We discuss the possibility of an optical access key providing up to 24 x 51.84 Mb/s to end users. This is aimed at meeting future high bandwidth demands using a cost-effective, flexible and evolutionary solution by the combination of Very high speed Digital Subscriber Line/Super Discrete Multitone (VDSL/SDMT) techniques and low drive current Vertical Cavity Surface Emitting Lasers (VCSELs).
Source: IEE Seminar on Photonic Access Technolgies, 17-18 December 2002 | | | Design Of Re-Configurable Wdm Overlay Fibre-Radio Access Networks
J E Mitchell and J C Attard, University College London (December 2002)
In this paper we first summarize the principal characteristics of an FSMS together with the state of the art. We then outline the main FSMS architectures possible followed by a discussion on some of the issues related to the overlay of a cellular wireless network over an FSMS WDM overlay as a supporting network for reconfigurable wireless fourth generation networks.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | UK HFC Deployments and Developments
C Catto (December 2002)
This paper presents real experiences with optical access networks, some new architectures using tried and tested optical technology and the commercial pressures that must drive any access network design.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Packet Switched Optical Data Networking using Coarse Wavelength Division Multiplexing
K A Williams, R V Penty and I H White, University of Cambridge and M Glick and D McAuley, Intel Research (December 2002)
A potentially low cost and flexible access node architecture based on uncooled coarse WDM technology is reported which facilitates nanosecond packet routing. The scheme is intrinsically cascadable and uses coarse WDM for high traffic efficiency. Asynchronous transmission is enabled using switched delays with uncooled receivers allowing potential application in ring and bus network architectures
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Cost of Coarse WDM Compared with Dense WDM for Wavelength-Addressable Enhanced PON Access
D Tanis, B R Eichenbaum, OFS (December 2002)
FSAN and ITU-T G.983.3 describe PON access architectures that include the option of enhanced data services to be carried by DWDM over the enhancement band, 1539 nm to 1565 nm (for example, see the spectral allocation part of BPON under ITU-T G.983.3). Just as CWDM provides a low cost alternative to DWDM in Metro systems, application of CWDM to wavelength services in access PONs offers similar cost reduction potential. The new Zero Water Peak Fibre (ZWPF) enables this implementation. We present results that show a cost reduction of almost 40% counting lasers, optics, and installed distribution fibre costs from using CWDM with the PON access architecture.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Spectral Slicing for Wavelength Division Multiplexing in the Access Network
M S Leeson, University of Warwick (December 2002)
Wavelength division multiplexing (WDM) offers an increasingly attractive path for upgrading the digital telecommunications access network to cope with increasing customer bandwidth requirements. The economic aspects of service provision in this portion of the network are such that low cost methods of generating a range of wavelengths are necessary. One option is to use an optical filter to provide narrow slice of a broadband noise source producing an approach commonly known as spectral or spectrum slicing (SS).
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Novel Terahertz Lasers for Free-Space Optical Access
M G Kong and D J Parish, Loughborough University, (December 2002)
This paper presents an assessment of key FEL component technologies in the context of low-cost terahertz FELs for photonic access.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Tuneable Optoelectronic Bandpass Filter Using a Simple Self?Pulsating Two-Section Laser
S E M Dudley et al., University Of Essex (December 2002)
In this paper, following on work on Sharp CD lasers , we show how injected RF signals in the 500MHz to 1.3GHz range can be effectively band-pass filtered by appropriate modification of the self-pulsation frequency. Through variation of the injected current to the gain region, or the reverse bias voltage on the absorber, the self-pulsate frequency and hence the gain-peak can be tuned. We show how this technique can therefore be used to bandpass filter the ASK modulated signals.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | A Transversal Filter for Fibre-Optic CDMA Receiving Systems
J Aguilar-Torrentera and I Darwazeh, University College London (December 2002)
A transversal-filter for Fibre-Optic CDMA (FO-CDMA) systems is described. Based on the distributed amplification and transversal filter concepts, we show the feasibility of receivers working at speeds close to the active devices cut-off frequency.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Novel Multifunctional Component For Photonic Access Networks: The Vertical Cavity Semiconductor Optical Amplifier (VCSOA)
G Dubois, A Dyson and M J Adams, University of Essex (February 2002)
For future optical access networks it is essential to develop cheap, reliable components with good performance at telecom wavelengths. Such networks are very cost-sensitive, since some components serve just one customer instead of being shared by large numbers of users as in, for example, a trans-oceanic cable. There is therefore a pressing need for multifunctional optical components that can offer low-cost access with high bandwidth at long wavelength.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | Low cost fibre-optic transceiver for FTTH
R Mayo (December 2002)
This paper proposes the use of a non-imaging concentrator to deliver light from a plastic optical fibre (POF) onto a photo-diode of smaller diameter. The limitations and optimization of this are discussed.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 | | | An Introduction to Ethernet First Mile Access and Optical Ethernet
S G Methley, Plextek Ltd (December 2002)
This review paper introduces Optical Ethernet and its recent advance into the access network as Ethernet in the First Mile (EFM). The aim is to give a technical overview and briefly place Ethernet in context with respect to more traditional telecoms circuit solutions, e.g. SONET.
Source: IEE Seminar on Photonic Access Technologies, 17-18 December 2002 |
Radar Antennas | | Division of multifunction radar antennas
D Ansell, BAe SYSTEMS, and E J Hughes, Cranfield University (November 2001)
In this paper, a method of applying multi-objective genetic algorithms (MOGAs) to optimise the excitation and subarray division of an active array antenna is presented. This enables beam patterns with multiple desired characteristics such as low sidelobes, maximum power efficiency and nulls in particular locations to be generated. The division of the array elements into subarrays is also optimised simultaneously by the MOGA.
Source: Multifunction Radar and Sonar Sensor Management Techniques, November 2001 |
Radio frequency identification (RFID) | | IEE Appleton Lecture 2005
Peter Bury (January 2005)
Lecture given by Peter Bury at the 2005 Appleton Lecture on the 13th January.
Source: IEE Appleton Lecture 2005 | | | The Other Eternal Triangle
Angus Annan (September 2004)
Article featured in the member voices section of September's IEE Review
Source: IEE Review | | | RFID sees all
K Sangani (March 2004)
Civil rights groups are getting uneasy over RFID as the technology, used in tracking products in manufacturing, crosses over to tracking shoppers in retail.
Source: IEE Review, April 2004 | | | Super-locator (RFID tracking)
J Walko (February 2004)
This article reports recent developments in RFID (radio frequency identification) technology.
Source: Communications Engineer, February 2004 |
Radio Spectrum Sorry, there are no articles for this topic.
Regulation & Standards | | WEEE & ROHS Directive - Actions you need to take
Produced by Envirowise in support of DTI and DEFRA initiatives on WEEE and ROHS (November 2003)
Directive on waste on electrical and electronic equipment (WEEE) and Directive on the restriction of use of certain hazardous substances (ROHS) in electrical and electronic equipment - A guide giving details on actions you need to take.
Source: | | | The Material eXchange Format
J Wilkinson, Sony & B Devlin, Snell & Wilcox (April 2002)
The Material eXchange Format (MXF) is an open file format targeted at the interchange of audio-visual material with associated data and metadata. It has been designed and implemented with the aim of improving file based interoperability between servers, workstations and other content creation devices. This paper reviews the format and its advantages.
Source: IEE Seminar on Visual media standards for today and tomorrow, 25 April 2002 | | | DivX and open standards [slides]
J Funnell, DivX Networks (April 2002)
DivX is first defined, and some background information are offered on the parent company and its history (including Project Mayo, DivX4 and DivX5). A rationale is offered for open standards, and the story so far of implementation and current practice is recounted.
Source: IEE Seminar on Visual media standards for today and tomorrow, 25 April 2002 | | | Introducing MPEG- 21: a multimedia framework standard [slides]
K Hill, Rightscom (April 2002)
The challenge of network-based commerce and its requirements leading to MPEG-21 are first described. The MPEG-21 timeframe and deliverables are then introduced, including the MPEG-21 Technical Report, the Digital Item Declaration and Identification, intellectual property management, the Rights Expression Language and Data Dictionary, and digital item adaptation.
Source: IEE Seminar on Visual media standards for today and tomorrow, 25 April 2002 | | | MPEG-7: multimedia content description interface - background, status, technologies and opportunities
E Hartley, University of Lancaster (April 2002)
The MPEG-7 standard provides many capabilities to support both current applications and further research into media analysis. It is more complex than comparable standards that relate to text description because multimedia description is more complex than describing text. MPEG-7 is being deployed now to support media management and reuse applications, and it has extensive capabilities to support new applications in the future.
Source: IEE Seminar on Visual media standards for today and tomorrow, 25 April 2002 | | | www.regulation: the why, what and whither of communications regulation [paper]
P Walker, Oftel (December 2001)
Regulation is as controversial today as ever before. Some call for a ‘lighter touch’ while others demand stronger intervention to create ‘Broadband Britain’. This presentation describes what regulators do and why, and the forthcoming changes which will create OFCOM from 5 existing communications regulators.
Source: Electronics & Communication Engineering Journal, December 2001 | | | Regulation in a changing world [slides]
P Walker, Oftel, & G Tonge, ITC (December 2001)
In 2003, OFCOM will be created to supersede the 5 existing regulators and will work under the framework of a new Communications Act. 5 new EU Directives will also change much of the framework of economic regulation of networks and services. What are the regulatory issues facing the various media services and how are they likely to be addressed in this new world? How can we balance the new 'lighter touch' regulation with the creation of Broadband Britain?
Source: IEE MMC PN Launch event: Multimedia Communications in the 21st Century - Winners and Losers?, 10 Dec 2001 | | | Regulation in a changing world
P Walker, Oftel, & G Tonge, ITC (December 2001)
In 2003, OFCOM will be created to supersede the 5 existing regulators and will work under the framework of a new Communications Act. 5 new EU Directives will also change much of the framework of economic regulation of networks and services. What are the regulatory issues facing the various media services and how are they likely to be addressed in this new world? How can we balance the new 'lighter touch' regulation with the creation of Broadband Britain?
Source: IEE MMC PN Launch event: Multimedia Communications in the 21st Century - Winners and Losers?, 10 Dec 2001 | | | Up to the mark
M Brookes, Low Power Radio Association (June 2001)
Changes in the European system of type approval for short-range devices could result in near anarchy and loss of consumer confidence. In the past, UK type approval of a radio module has been granted through testing by an independent third-party test house to a specification drawn up by the Radio-communications Agency (RA). More recently, the RA test requirements have been replaced by those produced at EU level by the European Telecommunications Standards Institute (ETSI). The article describes a proposal aimed at keeping this threat firmly at bay.
Source: IEE Review June 2001 |
Remote Sensing | | Buried pipeline mapping from satellite images
M Petrou, University of Surrey and I Gracia, University Jaume (July 2002)
There are approximately 5 million kilometres of high-pressure pipelines in the world with an average lifetime of 30 years. Ground instabilities may cause ground movement and the use of the land over and around a pipeline may change. As governmental authorities increasingly require pipeline operators to produce accurate location maps of pipeline routes, mainly for safety reasons, it is necessary to remap pipelines regularly.
Source: Electronics & Communication Engineering Journal, August 2002 | | | Ultimate green satellite?
M Williamson (May 2001)
Technological dinosaur or engineering triumph? Report on Envisat, the ESA?s 8 tonne Earth observation satellite.
Source: IEE Review May 2001 |
|  | Networks for this sector: Virtual communities on key areas of interest. | | |
