Publications – Details
EXIT Chart Optimized Rate Matching for Wireless Communication Systems
- Authors:
- Tobias Breddermann and Peter Vary
- Book Title:
- Proceedings of IEEE Vehicular Technology Conference (VTC-Fall)
- Venue:
- San Francisco, CA, USA
- Event Date:
- 5.-8.9.2011
- Organization:
- IEEE
- Date:
- Sept. 2011
- ISBN:
- 978-1-42448-328-0
- ISSN:
- 1090-3038
- URL:
- 10.1109/VETECF.2011.6092830
- Language:
- English
Abstract
In modern wireless communication systems different services with different bit rates and individual error protection requirements are supported by the same network. Rate matching by repetition is often employed after convolutional turbo encoding in order to achieve flexibly the required decrease of the code rate. This ensures near error-free transmission down to a specific target channel quality. We propose the optimization of the rate matching using EXIT charts. The rate for random repetition required for error-free decoding is determined semi-analytically avoiding extensive simulations. This includes the analytical optimization of the random repetition scheme and the derivation of the overall EXIT chart taking into account the convolutional turbo encoding and rate matching.
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