What is the price paid for superimposed training in OFDM?

Ning Chen, G. Tong Zhou. What is the price paid for superimposed training in OFDM?. In 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2004, Montreal, Quebec, Canada, May 17-21, 2004. pages 421-424, IEEE, 2004. [doi]

Abstract

Abstract is missing.