ISIT 2002, IEEE International Symposium on Information Theory, 30 June-05 July 2002, Lausanne, Switzerland
We consider a multiaccess Gaussian block fading channel where transmitters have causal state information. Variable-rate coding with input power constraint enforced on a per-codeword basis is examined. We find the average capacity region and average capacity region per unit energy. Moreover, we study the wideband slope of spectral eÆciency vs. (Eb=N0)dB, and we quantify the bandwidth expansion factor of TDMA over superposition coding in the wideband regime.
Type:
Conference
City:
Lausanne
Date:
2002-06-30
Department:
Communication systems
Eurecom Ref:
800
Copyright:
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