By Topic

IEEE Transactions on Communications

Issue 3 • Date March 1976

Filter Results

Displaying Results 1 - 18 of 18
  • [Front cover and table of contents]

    Publication Year: 1976, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (168 KB)
    Freely Available from IEEE
  • Guest Editorial: Telecommunications in Latin America

    Publication Year: 1976, Page(s):289 - 290
    Request permission for commercial reuse | PDF file iconPDF (246 KB)
    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1976, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (187 KB)
    Freely Available from IEEE
  • An Overview of Latin American Telecommunications, Past, Present, and Future

    Publication Year: 1976, Page(s):290 - 305
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1320 KB)

    A historical perspective on the development of telecommunications in Latin America in the last decade is evolved in this introductory paper. The current national telecommunication situation is then considered with reference to three countries-Honduras, Colombia, and Brazil-with emphasis on planning and future programs. Because of the accelerating impact that satellite communication has had on Lati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Transmitted Power in Generalized Partial Response

    Publication Year: 1976, Page(s):348 - 352
    Cited by:  Papers (27)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The advantages with regard to noise enhancement of certain suboptimum nonlinear techniques for "equalization" of linear distortion on channels used for digital data transmission have recently received considerable attention. These nonlinear schemes fall into two classes: decision feedback and nonlinear precoding. Yet each of these methods has an associated peculiarity which has impeded attempts to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multipoint Private Line (MPL) Access Delay Under Several Interstation Disciplines

    Publication Year: 1976, Page(s):339 - 348
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1096 KB)

    A multipoint private line (MPL) network is designed to operate within specified system-performance objectives. Performance objectives for some types of computer-communications networks are stated in terms of access-delay statistics which measure the grade of service experienced by the stations bidding for access to the private line. Access delay is defined to be the time from when a message reache... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Costa Rica: A Case Study of the Telephone Cost Structure on a Service-Related Basis

    Publication Year: 1976, Page(s):311 - 321
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1040 KB)

    This paper is based on a study made by the author in 1972-1973. The cost information corresponds to 1970. Although wealth and population density vary somewhat between Latin American countries, the region can be considered, as a group, better off than the other underdeveloped regions of the world. The network studied is probably among the best in the region. The paper is addressed to the issue of s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Telecommunications and Industrial Development

    Publication Year: 1976, Page(s):305 - 311
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Given a demonstrable correlation between telecommunications and industrial development, an interesting underlying question is: How can a telecommunication system be planned to achieve overall industrial development goals? A response could focus on the technical capabilities of a network, on the telecommunication equipment supply arrangements, and on the tariff structure. High telephone density is ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Behavior of Tandem Buffers with Geometric Input and Markovian Output

    Publication Year: 1976, Page(s):358 - 361
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A discrete-time system of infinite-capacity buffers in tandem is studied. The input process to the first buffer consists of individual arrivals characterized by a geometric distribution of the time between arrivals; and the probability that the output channel of each buffer, except the last, is transmitting at any epoch depends only on the number of digits in the buffer at that epoch. The transmit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Simulation Model of the TIDAS Computer Network

    Publication Year: 1976, Page(s):352 - 358
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    To study the performance of a full-duplex messageswitched computer network, called TIDAS-T, during various conditions a simulation model has been built in order to simulate the procedure. The model describes the communication and the line procedure in the TIDAS network very closely. The only simplification made is that the processing time in the node computers is disregarded as being insignificant... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Telecommunication Training in Latin America: A Viewpoint from Venezuela

    Publication Year: 1976, Page(s):329 - 331
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    The main differences between the problems of telecommunications training in Latin America and those in well industrialized countries are stated, the solution through national training centers is briefly described, and the need and possibility of regional training centers serving several countries is discussed and illustrated with relevant information about Venezuela's Telecommunication Studies Cen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Differential Phase-Shift Keying Performance on L-Band Aeronautical Satellite Channels: Test Results and a Coding Evaluation

    Publication Year: 1976, Page(s):374 - 380
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    The problem of communicating binary information from ground to aircraft via L -band aeronautical satellite channels is addressed, with particular attention given to the effect of and means of combating diffuse-scattered multipath interference. Differential phase-shift keying (DPSK) is considered throughout. Test results of a recent flight-test program are summa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Rural Telecommunications in Latin America

    Publication Year: 1976, Page(s):325 - 329
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    Over the last decade, Latin American telecommunications authorities have shown a growing concern for rural services reflecting their governments' increasing interest in this subject in the context of social and economic development. This paper presents a broad review of the existing situation of rural telecommunications in Latin America; details, though interesting in some cases, are not included ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Linking Electricity with the Telephone Demand Forecast: A Technical Note

    Publication Year: 1976, Page(s):322 - 325
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The electricity demand forecast can be used profitably, either as a short-cut or as a long-term effort, in telephone demand forecasting. Preliminary application of such effort to two Latin American countries offers fruitful insight and results. Further research in this area may pave the way to useful collaboration between planners in energy and telecommunications development projects. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Kalman Filter Equalization for QPSK Communications

    Publication Year: 1976, Page(s):361 - 364
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The discrete complex Kalman filter is considered as an equalizer for quadrature phase-shift keyed (QPSK) systems in the presence of additive noise and intersymbol interference (ISI). When the channel is unknown, an adaptive Kalman equalizer is used in which the channel complex tap gains are estimated by decision feedback. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Pulse and Spectrum Manipulation in the Minimum (Frequency) Shift Keying (MSK) Format

    Publication Year: 1976, Page(s):381 - 384
    Cited by:  Papers (73)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The minimum (frequency) shift keying (MSK) format is generalized to enable further improvements in the spectrum while retaining the well-known constant envelope property and the excellent communications efficiency of MSK. A specific alternative to MSK is presented, and the spectrum is compared with that of MSK. The theoretical limitations on possible further spectrum improvements are discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Delay-Lock Tracking of Stochastic Signals

    Publication Year: 1976, Page(s):331 - 339
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    The measurement and tracking of the delay between two versions of a stochastic signal by cross-correlation techniques is considered. Such techniques have broad applications, e.g., interferometry, noncontact speed and distance measurement, etc. The paper begins by discussing the functional diagram of the tracking system. From this diagram a mathematically equivalent model of the system is derived a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discrete Estimation of Continuous Angle-Modulated Signals Over Multipath Channels for Aeronautical Communication

    Publication Year: 1976, Page(s):365 - 374
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The multipath channel for communication between an aerospace vehicle and a ground terminal is modeled by a multiplicative first-order Markov process. The multiplicative process is treated as a component of the message model and the discrete-time demodulation algorithms using the extended Kalman nonlinear estimation technique are developed for continuous-time angle-modulated signals. The equivalent... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Communications focuses on all telecommunications including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

 

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Naofal Al-Dhahir
University of Texas at Dallas