Title :
Semicoherent PPM for wideband communications
Author :
Schuster, Ulrich G. ; Borgmann, Moritz ; Bölcskei, Helmut
Author_Institution :
Commun. Technol. Lab., Swiss Fed. Inst. of Technol., Zurich
Abstract :
We quantify the impact of coherence on pulse position modulation (PPM) over wideband fading channels by computing achievable rates and an upper bound on uncoded symbol error probability. We study the influence of channel estimation accuracy on the optimum diversity order and furthermore find that a near-optimum receiver typically needs to estimate a few channel taps only
Keywords :
broadband networks; channel estimation; error statistics; fading channels; pulse position modulation; PPM; channel estimation; pulse position modulation; uncoded symbol error probability; wideband fading channel; Bandwidth; Channel estimation; Delay; Error probability; Fading; Frequency; Maximum likelihood detection; Pulse modulation; Upper bound; Wideband;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365420
