Title :
Optimal Error Rate Performance of Binary TH-UWB Receivers in Multiuser Interference
Author :
Hosseini, Iraj ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB
Abstract :
An exact mathematical model which explains the important characteristics of the probability density function (PDF) of the multiple access interference (MAI) in time-hopping UWB (TH-UWB) systems is discussed. The proposed model accurately foresees impulses, singularities, and heavy tails found in the distribution of the MAI. Also, it discloses precisely why a Gaussian approximation for the MAI in TH-UWB systems is highly inaccurate even in the presence of a large number of interferers. Then, using the maximum a posteriori (MAP) receiver rule and based on the obtained model for the PDF of the MAI, the optimal achievable BER performance of binary TH-UWB receivers is numerically determined. Finally, the performances of some recently proposed UWB receivers are benchmarked against the optimal performance.
Keywords :
Gaussian distribution; approximation theory; error statistics; interference; maximum likelihood estimation; multi-access systems; radio receivers; ultra wideband communication; BER performance; Gaussian approximation; binary TH-UWB receiver; mathematical model; maximum a posteriori receiver rule; multiple access interference; multiuser interference; optimal error rate performance; probability density function; time-hopping UWB system; Error analysis; FCC; Gaussian approximation; Gaussian noise; Mathematical model; Multiple access interference; Probability density function; Signal to noise ratio; Ultra wideband technology; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.756
