Title :
Performance of PCC-OFDM with overlapping symbol periods in a multipath channel
Author :
Armstrong, Jean ; Gill, Tariq ; Tellambura, Chintha
Author_Institution :
Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
Abstract :
Polynomial cancellation coded orthogonal frequency division multiplexing (PCC-OFDM) with overlapping symbol periods is a modulation technique which overcomes many of the disadvantages of OFDM. PCC-OFDM is much less sensitive to frequency offset and Doppler spread than OFDM. Only the length of the equalizer used limits the delay spread that can be tolerated in a PCC-OFDM system. In this paper expressions are calculated for the intercarrier interference (ICI) and intersymbol interference (ISI) caused by timing errors in PCC-OFDM. Results are presented for simulations of PCC-OFDM in channels subject to frequency error and multipath. It is shown that good performance can be achieved using equalizers of only moderate complexity
Keywords :
OFDM modulation; data communication; delays; equalisers; interference (signal); intersymbol interference; multipath channels; polynomials; Doppler spread; ICI; ISI; PCC-OFDM; delay spread; equalizer; frequency error; frequency offset; intercarrier interference; intersymbol interference; moderate complexity; modulation technique; multipath channel; overlapping symbol periods; performance; polynomial cancellation coded orthogonal frequency division multiplexing; simulations; timing errors; Australia; Computer science; Equalizers; Intersymbol interference; Modulation coding; Multipath channels; OFDM; Polynomials; Timing; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891699
