Telcos
The telecommunications industry is evolving, from access technologies to satellite communications, telephony to data communications access.
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Aviva Video
Aviva is one of the world's largest insurance companies, with 46,000 employees in 28 countries. The London-based company's strategy is to operate as a single global organization that rapidly responds to customer needs.
Sponsored By Workday
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Aviva Case Study
Aviva is one of the world's largest insurance companies, with 46,000 employees in 28 countries. The London-based company's strategy is to operate as a single global organization that rapidly responds to customer needs.
Sponsored By Workday
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Comparison of Cisco and ShoreTel Unified Communication Solutions
Unlike ShoreTel's all-in-one, all-IP solution, the Avaya platforms have been adapted from legacy technology and assembled piecemeal. The result is a complex solution that can require extensive time and resources to manage.
By contrast, the ShoreTel Unified Communications system was designed from the ground up expressly for IP to provide...
Sponsored By ShoreTel
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Comparison of Avaya and ShoreTel Unified Communication Solutions
Unlike ShoreTel's all-in-one, all-IP solution, the Avaya platforms have been adapted from legacy technology and assembled piecemeal. The result is a complex solution that can require extensive time and resources to manage.
By contrast, the ShoreTel Unified Communications system was designed from the ground up expressly for IP to provide...
Sponsored By ShoreTel
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A Single Sediment-Microbial Fuel Cell Powering a Wireless Telecommunication System
The authors report the ability of a single sediment-Microbial Fuel Cell (MFC) to power Wireless Sensor Network (WSN) nodes. Such a system is able to collect information from sensors and to transmit it to sinks. In particular, the PowWow platform presented here is combining an open and modular hardware design...
Provided By IRISA
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Compliance in the Corporate World : - How Digital Fax Technology Minimizes Compliance Risks
The ability to secure, track, and store information is critical to avoiding civil and/or criminal penalties resulting from non-compliance.
For years, businesses have relied on fax communications in day day-to-day operations. Now there is more pressure to closely manage fax communications and document processes. This white paper addresses fax...Provided By OpenText
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ShoreTel and NSC
NSC is currently ShoreTel's only national Gold Partner in Australia, and has nearly 50 clients using ShoreTel solutions today, comprising more than 9000 endpoints and over 150 sites under management. Established in 1989, NSC is a leader in Contact Centre solutions, Unified Communications and Network Infrastructure throughout the South Pacific....
Provided By ShoreTel/NSC
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Bi-Gram Based Probabilistic Language Model for Template Messaging
This work reports the benefits of Statistical Machine Translation (SMT) in template messaging domain. SMT has become an actual and practical technology due to significant increment in both the computational power and storage capacity of computers and the availability of large volumes of bilingual data. Through SMT a sentences written...
Provided By International Journal of Computer Applications
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Digital Video Broadcasting-Satellite to Handheld Services
Universal education is the dream of India and more so with the passing of 'Right to Education bill' in the country. Looking to the diverse culture and vividity in the country it is not possible to take education to the last mile in the country with prevailing chalk-blackboard technique. An...
Provided By International Journal of Innovations in Engineering and Technology (IJIET)
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Enhancement of Satellite Image Resolution With Moving Objects
Satellite images are being used in many applications like Meteorology, Agriculture, Geology, Forestry, Landscape, Biodiversity, Planning, Education, Regional, Seismology and oceanography. The Enhanced satellite images make diagnostic details more obvious. The Image Enhancement is the main technique for improving the resolution and visual appearance of the image. One of the...
Provided By IOSR Journal of Engineering
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Innovative DAMA Algorithm for Multimedia DVB-RCS System
Satellite is often used as an access network in the next generation networks landscape, where multimedia and real-time services are supported by return channels. However, these satellite return channels are a very limited resource with many terminal stations competing for its use, making its efficient assignation one of the key...
Provided By EURASIP
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A Business View on Component Governance for TelCos
Changing conditions in current telecommunications markets created a greater need for telecommunications companies to provide a wider range of products and to produce them fast and flexible. To be successful in the Next-Generation markets for communications and content products the modern telecommunications companies are under pressure to review and optimize...
Provided By Comenius University
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Research on Objective Sorting Algorithm of Geo Communication Satellite Based on Fuzzy Theory
GEO (Geostationary Earth Orbit) communication satellites are important guarantee for the war. The authors should research the sorting for attack if they want to win the war. Performance parameters of GEO communication satellites are analyzed, and definitions of threat index are established. Subsequently, objective sorting algorithm of GEO communication satellites...
Provided By ISSN
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Multiuser Detection Performance in Multibeam Satellite Links Under Imperfect CSI
In multibeam satellite systems, there is a growing need for signal processing techniques able to mitigate the interference among beams, since they could enable a much more aggressive spectrum reuse. In this paper, the authors investigate the effect of the absence of perfect Channel State Information (CSI) at the receiver...
Provided By University of Vienna
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A New PWL Approximation for The "Self-Adjustable Offset Min-Sum" Decoding with a Highly Reduced-Complexity
Low-Density Parity-Check (LDPC) code is an Error Correcting Code (ECC) which is used in high throughput applications such the Digital Video Broadcasting for the second generation digital satellite and terrestrial television broadcasting system (DVBS2), (DVB-T2). The LDPC codes can be efficiently decoded with the original Belief-Propagation (BP) algorithm or the...
Provided By International Journal of Computer Applications
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Secure CDMA Sequences
Mobile communications require flexible networks which can accommodate variable numbers of users under adverse propagation environments. Multiplexing by frequency or time division is inefficient and ineffective in guarding against multipath and mutual interference, noise and jamming. Code Division Multiple Access (CDMA), frequency hopping, Orthogonal Frequency Division Multiplexing (OFDM), and Ultra...
Provided By Cornell University
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Optimized Resource in Satellite Network Based on Genetic Algorithm
Satellite network is an all-around network which has high-complexity, dynamic and enormous, and its resources are very limited. So, the authors have to optimize the resources on satellite network. This paper has studied the resources optimization for task in the satellite network. They established the flow chart and mathematical model...
Provided By ISSN
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Submarine Optical Cables as a Key Component in Undersea Telecommunications: A Review
Communication is playing a vital role in the life of human beings from the ancient time. The need to communicate creates a lot of advancement in communication system from time to time. Now a day people are connected world-wide through different communication links. The medium of these communication links could...
Provided By International Journal of Application or Innovation in Engineering & Management (IJAIEM)
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Reduction Techniques of Peak-to-Average Power Ratio in MCCDMA Systems
The high Peak-to-Average Power Ratio (PAPR) is one of the main disadvantages of Multi-Carrier Code Division Multiple Access (MCCDMA) system. To reduce the PAPR of multi-carrier CDMA signals, a lot of studies have been focused on the power characteristics of spreading sequences. This paper presents the main techniques to reduce...
Provided By Institute of Advanced Engineering and Science (IAES)
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Open Data Power, Smart Cities
Big Data is to be had on every corner of our streets: there is so much data, there are patterns to be found and insights to be gathered. In this whitepaper unlock why there is need for true openness of data - It is individual citizens and privately-owned companies offering...
Provided By EMC
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Asymptotically Optimal Channel Feedback Protocol Design for Cognitive Multiple Access Channels
In cognitive multiple access networks, primary secondary feedback links are needed to convey Secondary Transmitter Primary Base station (STPB) channel gains from the Primary Base Station (PBS) to the Secondary Base Station (SBS). To reduce the amount of feedback exchange between PBS and SBS, this paper proposes a feedback control...
Provided By Institute of Electrical and Electronics Engineers
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Pilot Design and Channel Estimation for Uplink Block Spread CDMA
In this paper, the authors propose the pilot design and channel estimation schemes for uplink Block-Spread Code Division Multiple Access (BS-CDMA) systems. In particular, they propose the use of a common spreading code to spread the pilot signals of all users such that a high bandwidth efficiency is achieved. The...
Provided By Institute of Electrical and Electronics Engineers
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CDMA-Based Analog Network Coding Through Interference Cancellation for Underwater Acoustic Sensor Networks
The performance of multi-hop underwater acoustic network is known to be limited by the long propagation delays and by the limited bandwidth of the Under-Water Acoustic (UW-A) channel. Recent work on Analog Network Coding (ANC) has shown that significant throughput gains can be achieved in multi-hop wireless networks. However, implementing...
Provided By Association for Computing Machinery
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Link Budget Improvement of Cooperative Diversity with WCDMA Method Implementation
Cooperative transmission has been of growing interest recently where users take advantage of each other's resources for better overall performance. User cooperation provides uplink transmit diversity even when mobile units cannot accommodate multiple antennas due to size constraints. Recently, a versatile user cooperation method called coded cooperation diversity was introduced...
Provided By International Journal of Information and Electronics Engineering
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The Undisputed Guide to Telecom Management Bliss
This paper explains the five key steps to converting to the vCom service and one final destination - telecom management bliss. The steps are: meet the team, inventory analysis, convert the services to vCom, software enablement and ongoing optimization. First off, breathe a sigh of relief. The people now have...
Provided By vCom solutions
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Satellite Image Classification Using Fuzzy Rule Classifier
The proposed technique is used to classify the satellite image into barren land, vegetation area, building area and road area. Initially, the satellite image is pre-processed and then is then segmented to have segments of barren land, vegetation area, building area and road area. The features of the segmented area...
Provided By EuroJournals
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Artemisa: New GNSS Receiver Processing Techniques for Positioning and Multipath Mitigation
Advances in computation and signal processing technologies allow the implementation sophisticated non-linear synchronization techniques that can be integrated in the acquisition and tracking modules, estimating both Line Of Sight Signal (LOSS) and Multi-Path (MP) echoes. Instead of using an ordinary DLL/PLL, advanced DLLs as the Multipath Estimating Delay Lock Loop...
Provided By Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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An Open Source Galileo E1 Software Receiver
This paper presents an open source implementation of a GNSS software receiver that targets Galileo E1B and E1C signals. After discussing the signal structure and the general architecture of the proposed software receiver, the authors provide detailed descriptions of the main signal processing algorithms involved in acquisition and tracking of...
Provided By Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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ASO-TDMA: Ad-Hoc Self-Organizing TDMA Protocol for Shipborne Ad-Hoc Networks
A Ship-borne Ad-hoc NETwork (SANET), a maritime counterpart of the terrestrial vehicle ad-hoc network, can provide ships with diverse multimedia services by substituting digital maritime VHF communications for expensive satellite communications. This paper proposes Ad-hoc Self-Organizing TDMA (ASO-TDMA), a Medium Access Control (MAC) protocol targeting SANETs. Frames in ASO-TDMA are...
Provided By EURASIP
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Genetic Diversity and Population Structure: Implications for Conservation of Wild Soybean (Glycine Soja Sieb. et Zucc) Based on Nuclear and Chloroplast Microsatellite Variation
Wild soybean (Glycine soja Sieb. et Zucc) is the most important germplasm resource for soybean breeding, and is currently subject to habitat loss, fragmentation and population decline. In order to develop successful conservation strategies, a total of 604 wild soybean accessions from 43 locations sampled across its range in China,...
Provided By Chinese Academy of Sciences
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QoSatAr: A Cross-Layer Architecture for E2E QoS Provisioning Over DVB-S2 Broadband Satellite Systems
This paper presents QoSatAr, a cross-layer architecture developed to provide end-to-end Quality of Service (QoS) guarantees for Internet Protocol (IP) traffic over the Digital Video Broadcasting-Second generation (DVB-S2) satellite systems. The architecture design is based on a cross-layer optimization between the physical layer and the network layer to provide QoS...
Provided By EURASIP
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Results of the Implementation of IP Multimedia Subsystem in One Telecom Operator for the ITIL Incident Management and Problem Management Process
This paper describes the implementation and using of the IP Multimedia Subsystem (IMS) in one Telecom operator in Bosnia and Herzegovina. In the first part of the paper, is described the design, implementation and testing of the IP Multimedia Subsystem in one Telecom operator. In the second part of the...
Provided By NORTH ATLANTIC UNIVERSITY UNION
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Space exploration: From Mars to tourism to telescopes
The Mars Curiosity rover may be grabbing headlines, but the realm of space is no longer the preserve of astronauts, robots and planetariums. Today, there is a new kind of space traveller: the tourist, who could be making voyages to the edge of space within a couple of years.
Back...Provided By ZDNet
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A Hybrid Method for Edge Continuity Based on Pixel Neighbors Pattern Analysis (PNPA) for Remote Sensing Satellite Images
Edge enhancement is derived from lack of accurate result from edge detection techniques. The image which is captured from long distances carries a lot of noise and blur which causes edge discontinuity. Although some novel algorithms which are based on cellular neural network, fuzzy enhancement and binary morphology have shown...
Provided By Scientific Research
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Analysis of Interference and Chanel Capacity in a CDMA Wireless Network Using Dynamic Channel Assignment (DCA) Strategy
There had been astronomical increase in the number of mobile users in recent times. Investigation had shown that these increased numbers of mobile users contribute high percentage of interferences that degrades the Quality of Services (QoS) in wireless network. Hence, interference is the most limiting factor of improved capacity in...
Provided By Academy & Industry Research Collaboration Center
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Design and Implementation of PCM Decommutator on a Single FPGA
After frame synchronization, individual measurands are identified according to the frame location. The decommutator identifies and extracts Embedded Asynchronous Data Stream (EADS) words. Thus PCM Decommutator is a very crucial subsystem in the satellite data acquisition unit of satellite ground station. A PCM decommutator is designed and implemented on a...
Provided By International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
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A Memory Optimized Low Density Parity Check (LDPC) Decoder for Chinese Digital Terrestrial Television Broadcasting
This paper proposes an LDPC decoder of Forward Error Correction (FEC), for Chinese digital TV, based on Single scan min sum decoder algorithm. The LDPC FEC encoding for Chinese DTV broadcasting includes three kinds of code rates with a code word block size of 7493. The simulated LDPC decoder for...
Provided By International Journal of Emerging Technology and Advanced Engineering (IJETAE)
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Ber Performance of HARQ MIMO-CDMA Systems in Multi User Environment
A new method for designing the spreading permutations based on space time block code matrices for MIMO-CDMA systems has been proposed. In Code Division Multiple Access (CDMA) systems, the calculated parity bits are used to select a spreading sequence from a set of mutually orthogonal spreading sequences. This paper focuses...
Provided By EuroJournals
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Comparison of Post-Filtering Methods for Intelligibility Enhancement of Telephone Speech
Post-filtering can be used to enhance the quality and intelligibility of speech in mobile phones. This paper introduces two straightforward post-filtering methods for near-end speech enhancement in difficult noise conditions. Both of the algorithms use a perceptually motivated high-pass filter to transfer energy from the first formant to higher frequencies....
Provided By University of Heilongjiang
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Monte Carlo Based Non-Linear Mixture Model of Earth Observation Satellite Imagery Pixel Data
Monte Carlo based non-linear mixel (mixed pixel) model of visible to near infrared radiometer of earth observation satellite imagery is proposed. Through comparative studies with actual real earth observation satellite imagery data between conventional linear mixel model and the proposed non-linear mixel model, it is found that the proposed mixel...
Provided By The Schwa
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Aviva Case Study
Aviva is one of the world's largest insurance companies, with 46,000 employees in 28 countries. The London-based company's strategy is to operate as a single global organization that rapidly responds to customer needs.
Sponsored By Workday
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Aviva Video
Aviva is one of the world's largest insurance companies, with 46,000 employees in 28 countries. The London-based company's strategy is to operate as a single global organization that rapidly responds to customer needs.
Sponsored By Workday
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Comparison of Cisco and ShoreTel Unified Communication Solutions
Unlike ShoreTel's all-in-one, all-IP solution, the Avaya platforms have been adapted from legacy technology and assembled piecemeal. The result is a complex solution that can require extensive time and resources to manage.
By contrast, the ShoreTel Unified Communications system was designed from the ground up expressly for IP to provide...
Sponsored By ShoreTel
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Comparison of Avaya and ShoreTel Unified Communication Solutions
Unlike ShoreTel's all-in-one, all-IP solution, the Avaya platforms have been adapted from legacy technology and assembled piecemeal. The result is a complex solution that can require extensive time and resources to manage.
By contrast, the ShoreTel Unified Communications system was designed from the ground up expressly for IP to provide...
Sponsored By ShoreTel
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SMS SPAM Detection by Operating on Byte-Level Distributions Using Hidden Markov Models (HMMs)
The volume of spam SMS received by mobile users has increased dramatically in recent years. SMS provides a perfect model for spam and is widely exploited through arbitrary advertising campaigns and propagation of scam schemes. The increasing threat can be controlled through efficient and robust filtering systems. Filtering of SMS...
Provided By National University of Computer and Emerging Sciences
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A Six-Level Model of SMS-Based eGovernment
SMS-based e-government is becoming popular in developed and developing countries as one of strategies to engage more citizens to use e-government services. However, there is no study predicting and explaining the acceptance of the SMS-based e-government. This paper is one of a series of three-papers investigating the opportunities and popularity...
Provided By Flinders University
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The Indian Telecom Services Performance Indicators
This paper presents the growth trends for the telecom services in India for the quarter ending March 2008. This paper provides a broad perspective on the Telecom Services to serve as a reference document for various stakeholders, research agencies and analysts. Under the Unified Access Service (UAS) Regime, the details...
Provided By Telecom Regulatory Authority of India
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Consultation Paper On Encouraging Telecom Equipment Manufacturing In India
The telecommunications sector would continue to contribute significantly to the growth of the Indian economy over the next few years. While the growth in the spread of telecom infrastructure and provision of services is rapid, the contribution of the Indian telecommunications equipment manufacturing industry to this sector is modest. There...
Provided By Telecom Regulatory Authority of India
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Consultation Paper On Certain Issues Relating To Telecom Tariffs
Service providers periodically publish different tariff offers with the objective of both customer acquisition and customer retention. Transparency in the provision of telecommunication services and tariff offers has always been and continues to be of prime concern to the Authority. TRAI has in the past taken several steps to enhance...
Provided By Telecom Regulatory Authority of India
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Secure SMS Communication Based on Quasigroup Transformations
By its nature, the SMS communication is insecure and the message information can be viewed of many interested parties. Here the authors propose a protocol for secure SMS end-to-end communication between two mobile devices. The protocol is based on a symmetric encryption of the message context. The encryption is defined...
Provided By Ss.Cyril and Methodius University
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Performance Evaluation of QoS Parameters in UMTS Network Using Qualnet
UMTS network based on the Wide Band-CDMA technology is a 3rd generation telecommunication system which provides various multimedia applications along with the conventional telephony service. These various multimedia applications fall into four different categories, which are differentiated from each other on the basis of required bit rate and delay tolerance...
Provided By Guru Nanak Dev University
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A Game-Theoretic Approach to Joint Modulation, Rate and Power Control for Cognitive CDMA Communications
A game-theoretic framework was used to study the effect of modulation on the energy efficiency of cognitive CDMA (Code Division Multiple Access) communications for adaptive modulation. The authors designed an adaptive utility function which can link modulation, rate and power control. Since users are selfish and rational, a non-cooperative game...
Provided By National University of Defense Technology
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Reliable Multicast MAC Protocol for Spatial Reuse Efficiency Assisted by Multicarrier DS-CDMA in WLAN Systems
The authors propose a reliable multicast MAC protocol based on the multicarrier direct-sequence code-division multiple access (MC DS-CDMA) scheme to enhance spatial reuse efficiency in Wireless Local Area Networks (WLANs). Conventional multicast MAC protocols using RTS-CTS handshake exchange CTS and ACK packets consecutively for reliable transmission. Although this protocol guarantees...
Provided By Ajou University
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MSDN Webcast: VoIP, the Built-in Experience With Windows Embedded CE 6.0 R2 (Level 100)
The presenter of this webcast discusses and demonstrates the built-in VoIP experience in Windows Embedded CE 6.0 R2. The presenter provides an overview of VoIP, and cover topics such as VoIP-related components included in Windows Embedded CE, modifying and using the components, how to build and test a VoIP device.
Provided By Microsoft Tips
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Bundling In Telecommunications
The paper offers an overview of the literature on bundling in the telecommunications sector and its application in the Spanish market. The authors argue that the use of bundling in the provision of services is associated to technological reasons. Therefore, there appears no need to regulate bundling activities. However, this...
Provided By Universitat Autonoma de Barcelona
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CROMA - A Slotted Mac Protocol for MANETs with Multislot Communications
TDMA based MAC protocols can provide a very good utilization of the shared radio resources, especially at high input loads, in synchronized Mobile Ad hoc NETworks (MANETs). Global positioning systems like GPS or GALLILEO should provide a very good timing accuracy for synchronization of nodes. This paper presents a medium...
Provided By Universite Pierre et Marie Curie
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New Channel Coding Methods for Satellite Communication
This paper deals with the new progressive channel coding methods for short message transmission via satellite transponder using predetermined length of frame. The key benefits of this contribution are modification and implementation of a new turbo code and utilization of unique features with applications of methods for bit error rate...
Provided By Brno University of Technology
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Performance Analysis of Multiuser Detection for Multibeam Satellites Under Rain Fading
Multibeam satellite systems are nowadays widely employed, and their use is expected to grow in the next decades. This has raised the interest for signal processing techniques able to mitigate the interference among beams, since they could enable a much more aggressive spectrum reuse. In this paper, the authors investigate...
Provided By University of Vienna
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A Business View on Component Governance for TelCos
Changing conditions in current telecommunications markets created a greater need for telecommunications companies to provide a wider range of products and to produce them fast and flexible. To be successful in the Next-Generation markets for communications and content products the modern telecommunications companies are under pressure to review and optimize...
Provided By Comenius University
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A Framework for Teaching Programming on the Internet: A Web-Based Simulation Approach
Building abstracted models that simplify programming language constructs is considered an essential activity in today teaching processes. Abstracted models enable learners and trainers to practice and visualize actual activities of the underlying programming concepts. The spread of web-based technologies and satellite stations played a major role in spreading news, information...
Provided By Science Publications
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Viability of ISI-Based TETRA Over Satellite
Satellite communications, by its very nature of providing wide-area coverage can play an important role in interconnecting TETRA networks. A satellite link may be used to support any of the interfaces in TETRA network. However, the selection of particular interface applies to specific scenarios and provides different advantages and disadvantages....
Provided By Jozef Stefan Institute
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System Performance Comparison of Turbo and Trellis Coded Optical CDMA Systems
In this paper, the authors have compared the performance of a Turbo and Trellis coded Optical Code Division Multiple Access (OCDMA) system. The comparison of the two codes has been accomplished by employing Optical Orthogonal Codes (OOCs). The Bit Error Rate (BER) performances have been compared by varying the code...
Provided By University of Delhi
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A Meeting Detector and Its Applications
In this paper the authors present a context-sensing component that recognizes meetings in a typical office environment. The prototype detects the meeting start and end by combining outputs from pressure and motion sensors installed on the chairs. They developed a telephone controller application that transfers incoming calls to voice-mail when...
Provided By Dartmouth College
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VoIP: Do You See What I'm Saying? - Managing VoIP Quality of Experience on Your Network
Network convergence offers the vision of a single network, carrying traffic from many different types of applications (voice, video, and data, to name a few). Many have been enticed by this vision. A large and increasing number of organizations have a Voice over IP (VoIP) pilot or a full deployment...
Provided By NetQoS
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Addressing Echo in VoIP Systems: Understanding and Monitoring Echo Cancellation for Optimal VoIP Performance
Echo is a troubling problem for telecom professionals. Most of them have suffered through a telephone call where they had to try to talk with a lot of echo on the wire. It's very distracting. Voice over IP does not create echo. However, due to the temporal aspect of echo,...
Provided By NetQoS
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The Top 4 Reasons Your TEM Provider Shouldn't Manage Your Wireless Expenses
In the last decade, companies of all sizes have successfully increased their workforce's mobile productivity by implementing wireless communication programs - but often at a staggering cost. With different rate plans, devices, data usage, and other variable costs, many organizations realized a significant need to manage these new (and expensive)...
Provided By Bill Police
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Bent Functions at the Minimal Distance and Algorithms of Constructing Linear Codes for CDMA
In this paper the authors study linear codes for CDMA (Code Division Multiple Access). This is the standard for the 3rd Generation cellular communications systems. In this standard bent functions are used for constructing codes of constant amplitude. This application allows decreasing PAPR (Peak-to-Average Power Ratio) coefficient as much as...
Provided By Novosibirsk State University
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The Great Lakes Drained Dry?
A satellite image and a statistic haunted a four-day interterm course taught at the University of Notre Dame this spring called The Global Commons: Shifting Planetary Paradigm. The statistic was 2.1 billion gallons. That's the net amount water the Lake Michigan basin is losing per day, according to a report...
Provided By University of Notre Dame
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Designing Competition Policy For Telecommunications
This paper explores the role of the essential facilities doctrine in circumscribing the scope of network sharing obligations in telecommunications. Among other things it argues that a proper application of the doctrine of essential facilities should recognize the prominence of dynamic over static efficiency in promoting consumer welfare. Regulators may...
Provided By regulation2point0
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A Novel Satellite Data 3-Dimensional Visualization Method
In the solution to the problem of 3 d visualization of satellite data, such as accurate cloud, ignorance of visual impact mask gray, transparency and positioning, the author puts forward a series of methods. Through the inspection cloud background radiation masks and cloud, and can obtain the highest inversion precision...
Provided By Tianjin Polytechnic University
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Interest of the Sequences Pseudo Noises Codes of Different Lengths for the Reduction From the Interference Between Users of CDMA Network
The Third Generation (3G) of cellular system adopted the spread spectrum as solution for the transmission of the data in the physical layer. Contrary to systems IS-95 or CDMAOne (systems with spread spectrum of the preceding generation), the new standard, called Universal Mobil Telecommunications System (UMTS), uses long codes in...
Provided By Institut National Polytechnique Felix Houphouet Boigny
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Speckle Noise Reduction in Satellite Images Using Spatially Adaptive Wavelet Thresholding
This paper presents an efficient algorithm for removing noise in satellite images by combining Wavelet Thresholding, Total Variation in wavelet domain and Bilateral Filter, Joint Bilateral Filter (JBF) in spatial domain. During the first stage, the noisy image is passed through Bilateral Filter (BF) and some amount of noise is...
Provided By International Journal of Computer Science and Information Technologies
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Investing In The Future International Financing Trends In The IT And Telecom Sector
This research paper investigates and analyses the current state of broad technology financing in key European economies and in the US. It also specifically examines what is happening to IT replacement cycles, along with the symbiosis between financing and investment levels that is helping to fuel technology investment recovery in...
Provided By Siemens Financial Services GmbH
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Analysis of Telecommunication Management Technologies
Telecommunication management is a fundamental factor in successfully operating networks and services. It provides various functions such as Operation & Maintenance (O&M), administration, performance, provisioning, accounting and security. Without it, neither a user can enjoy the benefits of any services nor can the business keep running smoothly. Traditionally the management...
Provided By Telecom SudParis
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Use of Geographical Information System (GIS) in Developing an Intelligent Transport System (ITS)
The purpose of this paper is to explore the possibilities of developing an Intelligent Transport System using the resources of Geographical Information System and Spatial Information System. Following a substantial literature review of the current practice and academic research in the transportation application field, the author is capitalizing on good...
Provided By Chittagong University of Engineering & Technology
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Optimal Buffer Allocation in Tandem Queues With Communication Blocking
In this paper, the authors consider an m-node tandem queue (queues in series) with a Poisson arrival process and either deterministic or non-overlapping service times. With the assumption that each node has a finite buffer except for the first node, they show the non-increasing convex property of stationary waiting time...
Provided By Electronics and Telecommunication Research Institute
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Future Automotive Insurance System Based on Telematics Technology
With the proliferation of vehicles and advancement of Information Technology, the technology of Telematics, which provides valuable services to people by collecting and analyzing the information from drivers, vehicles and Telematics environments (e.g., traffic information, road condition, weather information, etc.), has been a hot research area in IT and automotive...
Provided By Electronics and Telecommunication Research Institute
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Orbit Determination Accuracy Improvement for Geostationary Satellite With Single Station Antenna Tracking Data
An operational Orbit Determination (OD) and prediction system for the geostationary Communication, Ocean, and Meteorological Satellite (COMS) mission requires accurate satellite positioning knowledge to accomplish image navigation registration on the ground. Ranging and tracking data from a single ground station is used for COMS OD in normal operation. However, the...
Provided By Electronics and Telecommunication Research Institute
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Highly Linear and Efficient Microwave GaN HEMT Doherty Amplifier for WCDMA
Current higher data rate modulation and multi-carrier application systems require high-linearity and high-efficiency power amplifiers which depend on power transistors with high compression points, excellent thermal stability, and increasingly high frequency response. The Gallium Nitride (GaN) High Electron Mobility Transistor (HEMT) is a promising candidate for high power RF applications...
Provided By Electronics and Telecommunication Research Institute
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Design and Simulation of a Reduced - Size VSAT Antenna With Appreciable Gain
Information technology has become a very vital tool in the world today. There exist the need for the flow of information between arms of an organization such as banks, hospitals, business sectors and the like. Over the ages, different mechanisms of communication have been developed which include telephone exchange, fax,...
Provided By ARPN Journal of Systems and Software