Superposition by Position
- 25 May 2006
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 222-226
- https://doi.org/10.1109/itw.2006.1633816
Abstract
We present a novel method for superposition coding applicable to OFDM systems in which the receivers being transmitted to are one high SNR receiver and one low SNR receiver. The degradation of the high SNR receiver, however, results primarily from channel uncertainty. Thus, we consider the effect of imperfect channel estimates, a ubiquitous problem in mobile wireless, and show that the new scheme performs much better than traditional schemes in such a setting.Keywords
This publication has 4 references indexed in Scilit:
- The capacity region of the gaussian MIMO broadcast channelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Comments on broadcast channelsIEEE Transactions on Information Theory, 1998
- Random coding theorem for broadcast channels with degraded componentsIEEE Transactions on Information Theory, 1973
- Broadcast channelsIEEE Transactions on Information Theory, 1972