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Optimum code rate in cellular systems using adaptive modulation

Author

Summary, in English

It is essential to find suitable modes (combinations of alphabet sizes and code rates) for transmission in cellular systems. Bad choices result in low spectrum efficiency. An analytical method is proposed to find the modes which give the highest spectrum efficiency when using adaptive modulation. It is demonstrated that data rates considerably higher than 271 and 384 kbps are feasible in GSM and EDGE systems by using adaptive modulation. It is further demonstrated that the spectrum efficiency can be improved more than 100% by using three modes in a GSM system

Publishing year

1999

Language

English

Pages

1992-1996

Publication/Series

Proc. IEEE International Conference on Communications

Volume

3

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE International Conference on Communications, 1999

Conference date

1999-06-06 - 1999-06-10

Conference place

Vancouver, Canada

Status

Published

Research group

  • Radio Systems

ISBN/ISSN/Other

  • ISBN: 0-7803-5284-X