We show that one can do away with the cyclic prefix (CP) for SC-FDE and OFDM at the cost of a moderate increase in the complexity of a DFT-based receiver. Such an approach effectively deals with the decrease in the number of channel uses due to the introduction of the CP. It is shown that the SINR for SC-FDE remains the same asymptotically with the proposed receiver without CP as that of the conventional receiver with CP. The results are shown for Nt transmit antennas and Nr receive antennas where Nr≥Nt.
Cite
@article{arxiv.cs/0611059,
title = {Is the cyclic prefix necessary?},
author = {Naresh Sharma and Ashok Armen Tikku},
journal= {arXiv preprint arXiv:cs/0611059},
year = {2012}
}
Comments
12 pages, 1 figure. Appeared in part in the Proceedings of International Symposium on Information Theory (ISIT), Seattle, WA, USA, July 2006