A novel cyclic-prefix based delay-spread estimation technique for wireless OFDM systems is proposed. In particular, the authors propose a technique for estimating the delays and powers of multipath components when the channel is sparse, i.e. a few strong multipaths distantly spaced in time, and a technique for estimating the RMS delay-spread when the channel has a large number of sample-spaced ...

This paper proposes “path mapping”, a method of delay estimation for technology independent combinational circuits. Path mapping provides fast and accurate delay estimation using the common ideas with the tree covering based technology mapping. First, path mapping does technology mapping for all paths in the circuit with minimum delay. Then, it finds the most critical path among all the paths i...