Title :
Performance comparisons between two signaling formats for UWB communications
Author :
D´Amico, A.A. ; Mengali, U. ; Taponecco, L.
Author_Institution :
Dept. of Inf. Eng., Pisa Univ., Italy
Abstract :
Two signaling formats for ultrawide bandwidth indoor communications are compared in terms of bit error rate performance in the presence of multiple access interference. The channel exhibits multipath propagation and its impulse response is either assumed known or is estimated with least squares methods. Computer simulations show that, even with perfect channel knowledge, time-hopping pulse-amplitude modulation is superior to time-hopping pulse-position modulation. The superiority increases with the number of users and becomes substantial in the presence of channel estimation errors. An intuitive explanation of this fact is provided.
Keywords :
broadband networks; channel estimation; error statistics; indoor radio; least squares approximations; pulse amplitude modulation; radio receivers; radiofrequency interference; transient response; BER; bit error rate; channel estimation error; impulse response; least squares method; multipath propagation; multiple access interference; perfect channel knowledge; signaling format; time-hopping pulse-amplitude modulation; ultrawide bandwidth indoor communication; Bandwidth; Bit error rate; Channel estimation; Computer errors; Computer simulation; Indoor communication; Least squares methods; Multiple access interference; Pulse modulation; Ultra wideband communication;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313176
