Adaptive Subcarrier Allocation with Imperfect Channel Knowledge Versus Diversity Techniques in a Multi-User OFDM-System

@article{Khne2007AdaptiveSA,
  title={Adaptive Subcarrier Allocation with Imperfect Channel Knowledge Versus Diversity Techniques in a Multi-User OFDM-System},
  author={Alexander K{\"u}hne and Anja Klein},
  journal={2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications},
  year={2007},
  pages={1-5}
}
In this paper, the performance of an adaptive multi-user OFDM system with imperfect channel knowledge at the transmitter is investigated, where the ergodic capacity is taken as performance criterion. This performance is then compared to the performance achievable with the use of diversity, where no channel knowledge at the transmitter is required. For that reason, different models of imperfect channel knowledge are introduced: noisy, outdated and quantised channel knowledge, where we provide an… CONTINUE READING
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