Title :
Simulation techniques for the QAM codes
Author_Institution :
City Univ. of New York, Staten Island, NY, USA
Abstract :
A microcomputer-based simulation facility built to investigate the performance of bandwidth-efficient quadrature amplitude modulation (QAM) codes is described. The author explores the computer simulation methodology for the primary rate integrated services digital network (ISDN). The management of large databases which hold the specific details of the subscriber loop plants and the electrical characteristics, of the cables constituting the segments of the loop are emphasized. Postprocessing of the data bases which hold the simulation results for loops in national databases is also explored. Systematic depiction of significant cluster noises in QAM signals is also presented: cross-comparing the system performance under various design options is thus feasible
Keywords :
ISDN; amplitude modulation; codes; database management systems; digital simulation; microcomputer applications; subscriber loops; telecommunications computing; DBMS; ISDN; QAM codes; cluster noises; computer simulation; electrical characteristics; microcomputer-based simulation facility; national databases; primary rate integrated services digital network; quadrature amplitude modulation codes; subscriber loop plants; Cables; Computational modeling; Computer simulation; Databases; Electric variables; ISDN; Quadrature amplitude modulation; Signal design; Subscriber loops; System performance;
Conference_Titel :
Systems, Man, and Cybernetics, 1991. 'Decision Aiding for Complex Systems, Conference Proceedings., 1991 IEEE International Conference on
Conference_Location :
Charlottesville, VA
Print_ISBN :
0-7803-0233-8
DOI :
10.1109/ICSMC.1991.169704
