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Potentials, IEEE

Issue 4 • Date Oct.-Nov. 2004

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Displaying Results 1 - 20 of 20
  • Software-defined radio: a brief overview

    Publication Year: 2004 , Page(s): 14 - 15
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (791 KB) |  | HTML iconHTML  

    This paper overviews the software-defined radio (SDR), also called software radio (SR), refers to wireless communication in which the transmitter modulation is generated or defined by a computer. The receiver then also uses a computer to recover the signal intelligence. SDR is an enabling technology that is useful in a wide range of areas within wireless systems. The primary goal of SDR is to replace as many analog components and hardwired digital VLSI devices of the transceiver as possible with programmable devices. This technology is receiving enormous recognition and generating widespread interest in the telecommunication industry. The SDR Forum is an international, nonprofit organization that includes members from academia, the military, vendors, wireless service providers, and regulatory bodies. SDR has been described as the cornerstone in the evolution of GSM. View full abstract»

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  • Bits and bytes [US employment]

    Publication Year: 2004 , Page(s): 26 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1038 KB) |  | HTML iconHTML  

    This paper discusses the improvement of employment in US government through the year 2012. Employment in the professional, scientific and technical consulting services grows by 27.8 percent and adds 1.9 million new jobs out of 21 million. Computer systems designs and services and management services also grows rapidly. The information supersector has expected to add 632,000 jobs in 2012, which includes telecommunications, broadcasting, and newspaper, periodical, book and directory publishers and also there is an increase in demand for residential and business land-line and wireless services, cable service, high-speed Internet connection and software which fuels the job growth among these industries. In manufacturing industries the employment will vary from one another because of the international competition. Professional and related workers are employed in private industry and government. However there is a rapid change in the technology and the statistical analysis is made to increase the data by means of robust approach. View full abstract»

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  • A chaotic circuit demo for communications

    Publication Year: 2004 , Page(s): 28 - 31
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (921 KB) |  | HTML iconHTML  

    This article demonstrates the chaos synchronization as a laboratory experiment to support the fact that chaotic signals can be utilized for a secure communication system. This chaotic signal is obtained between transmitter and the receiver and the extractor circuit determines the BER. The chaos synchronization is used for coherent detection of message signal. The modulator-demodulator circuit is implemented with discrete components to study the effect of chaos extractor circuit and digital information signal. Thus the security is better at higher complexity level. The experiment shows the ability to achieve the chaos synchronization at the hardware level. View full abstract»

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  • DWDM: shaping the future communications network

    Publication Year: 2004 , Page(s): 16 - 19
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (967 KB) |  | HTML iconHTML  

    This paper describes the increase in the number of optical carriers per single fiber, a technology known as wavelength division multiplexing (WDM). This successful technology takes advantage of existing glass or synthetic fiber. WDM greatly simplifies the traditional signal regeneration since optical amplification is much simpler and more cost effective than single channel amplification. However, network bandwidth elasticity is best addressed with WDM. However photonic devices performing in the low-loss spectral band have enabled more than a single wavelength in the same fiber. Thus, DWDM technology exhibits an inherent flexibility. View full abstract»

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  • Essay - Wacky electoral skepticism

    Publication Year: 2004 , Page(s): 44 - 45
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (612 KB) |  | HTML iconHTML  

    First Page of the Article
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  • 2004 student activities committee e-mail addresses

    Publication Year: 2004 , Page(s): 47
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  • Power line communications

    Publication Year: 2004 , Page(s): 4 - 8
    Cited by:  Papers (57)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1944 KB) |  | HTML iconHTML  

    This article overviews the power line communication, which is originally devised to transmit electric power from a small number of sources to a large number of sinks. Initially the first data transmission were over power lines were primarily done only to protect sections of the power distribution system in case of faults. This paper also studies the performance of power lines for high bit rate applications. DMT technology is adopted by the homeplug standard can theoretically provide data rates of 100Mb/s. However, products based on the standard only have achieved data rates up to 14 Mb/s. To protect against the severe noisy conditions and fading in the powerline channel, very high levels of error control coding need to be provided. The efforts of the homeplug alliance and home networking technology's growth in the US portend a very bright future for DMT-based PLC home networking. View full abstract»

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  • Customer behavior prediction - it's all in the timing

    Publication Year: 2004 , Page(s): 20 - 25
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1602 KB) |  | HTML iconHTML  

    This paper describes the prediction of customer behavior, which enables service providers in the telecommunications industries to proactively build customer loyalty and to maximize profitability. The prediction process involves extracting customer data, preprocessing the raw data, building a predictive model, and evaluating the model. The modeler needs to understand the service provider's business rules and the application scenario. Customer data used for prediction can be massive and yet sparse, and is dynamic, noisy, and sometimes faulty. For the success of a project, data preparation and timing are often critical components. View full abstract»

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  • Determining how much info Bob and Alice really need to communicate

    Publication Year: 2004 , Page(s): 37 - 39
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (730 KB) |  | HTML iconHTML  

    This paper describes the two-party communication complexity model. Each message is a string of bits and carried out according to some fixed protocol. Cost of information transfer associated with a given distributed computation is focused in this paper. This paper also presents an overview of basic algebraic and combinatorial tools that has been used in this theory. View full abstract»

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  • An intelligent balance

    Publication Year: 2004 , Page(s): 40 - 43
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1427 KB) |  | HTML iconHTML  

    This paper discusses the intelligent balance, which has been established between real and virtual experiments and it also gives skills that have not covered in conventional electronics and communication engineering. Engineering is the art of applying scientific and mathematical principles, experience, judgment and common sense to make things that benefit people. The explosive growth of computer capabilities and easy access to nanominiature devices has revolutionized communication and the analysis of complex systems. The EC engineer either individually or as a member of a team, can play an important role in this technical diverse mosaic and this community prepares to adapt frequency shifts in technical priorities. EC engineers should be given computers hand-on-practice and training and also should understand the physics of the problem and fundamental theorem. View full abstract»

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  • IEEE Potentials

    Publication Year: 2004 , Page(s): 2
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    Freely Available from IEEE
  • Low bit rate speech coding

    Publication Year: 2004 , Page(s): 32 - 36
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (908 KB) |  | HTML iconHTML  

    This paper describes the objective of speech coding to achieve toll quality performance at minimum bit rate and to improve the efficiency of transmission and storage, reduce cost, increase security and robustness in transmission. Speech coding can be achieved based on two facts: redundancy in speech signals, and the perception properties of human ears. Performance evaluation of speech coding is obtained by speech quality, coding rate, algorithm complexity and delay. The two speech coding methods: waveform coding and parametric coding uses a synthetic model for speech analysis and reconstruction. This paper focuses on a source coding and subjective mean opinion score methods are used to measure the speech perception based on score given by the listener to achieve low bit rate coding. View full abstract»

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  • Gold graduates of the last decade

    Publication Year: 2004 , Page(s): 50
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  • Tomorrow starts with what's new today

    Publication Year: 2004 , Page(s): 49
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  • Ad index

    Publication Year: 2004 , Page(s): 48
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  • IEEE Potentials

    Publication Year: 2004 , Page(s): 0_1
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    Freely Available from IEEE
  • Xplore potentials online

    Publication Year: 2004 , Page(s): 02
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    Freely Available from IEEE
  • IEEE Potentials - Table of contents

    Publication Year: 2004 , Page(s): 1
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    Freely Available from IEEE
  • Editorial

    Publication Year: 2004 , Page(s): 3
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    Freely Available from IEEE
  • Finding your dream job - IEEE

    Publication Year: 2004 , Page(s): 46
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    Freely Available from IEEE

Aims & Scope

IEEE Potentials is the magazine dedicated to undergraduate and graduate students and young professionals.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
David Tian
Carnegie Mellon University
david.tian@ieee.org