Accession Number : ADA326087

Title :   Fractal Point Process and Queueing Theory and Application to Communication Networks.

Descriptive Note : Annual rept. 1 Jun 96-31 May 97,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s) : Wornell, Gregory W.

PDF Url : ADA326087

Report Date : MAY 1997

Pagination or Media Count : 19

Abstract : In the past year, our broad program of research has continued to explore efficient solutions fundamental problems of communication for wireless and wired networks, exploiting interrelated perspectives from communication theory, information theory, signal processing theory, and control theory. As part of this work novel applications chaos and fractal geometry are also being explored. As one component of the research, we have continued to develop novel multiscale methods for analyzing packet switched data networks with bursty traffic exhibiting fractal behavior. These methods have also led to the development of complementary new multiscale traffic management strategies for more efficiently routing and serving packets in such networks. These new results are described in detail in the Ph.D. thesis of Warren Lam completed during this reporting period. In other aspects of the ongoing research, we developed additional results on the use of nonlinear dynamics, chaos, and solitons in the design of innovative analog error protection codes for communications applications, and developed new very low complexity adaptive coding techniques for exploiting the availability of feedback in unknown, time varying wireless communication networks. As a final component of the research, we have continued to develop promising new and bandwidth-efficient classes of time, frequency, and space diversity strategies for single and multiuser wireless communication in multipath fading environments.

Descriptors :   *FRACTALS, *QUEUEING THEORY, *COMMUNICATIONS NETWORKS, ALGORITHMS, SIGNAL PROCESSING, ENVIRONMENTS, STRATEGY, DATA TRANSMISSION SYSTEMS, NETWORKS, DYNAMICS, THEORY, EFFICIENCY, THESES, AVAILABILITY, NONLINEAR SYSTEMS, SOLUTIONS(GENERAL), FEEDBACK, RECURSIVE FUNCTIONS, ANTENNAS, PROTECTION, GEOMETRY, TRANSMITTERS, COMMUNICATION AND RADIO SYSTEMS, BEHAVIOR, CONTROL THEORY, INFORMATION THEORY, ANTENNA ARRAYS, ANALOG SYSTEMS, ERROR CORRECTION CODES, MULTIPATH TRANSMISSION, SOLITONS, FADING(ELECTROMAGNETIC WAVES), PACKET SWITCHING, EQUALIZATION, SPACE DIVERSITY COMMUNICATIONS.

Subject Categories : Numerical Mathematics
      Operations Research
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE