Title :
Performance of RAKE Reception with Decision Aided Channel Estimation Using the UMTS P-CPICH
Author :
Ionescu, Mihnea ; Halunga, Simona ; Fratu, Octavian
Author_Institution :
Politehnica Univ. of Bucharest, Bucharest
Abstract :
A decision aided (DA) scheme is proposed in order to estimate the complex channel coefficients (needed for coherent combining in a RAKE receiver) using the UMTS downlink primary common pilot channel (P-CPICH). Thus, the rough estimates resulted after descrambling the corresponding signal are further refined by way of the above mentioned DA scheme. Monte Carlo simulations are carried out to comparatively assess the performance of maximal ratio combining (MRC) and equal gain combining (EGC) RAKE reception, underlining the optimal choice of DA parameters.
Keywords :
3G mobile communication; Monte Carlo methods; channel estimation; diversity reception; error statistics; radio receivers; Monte Carlo simulations; RAKE receiver; RAKE reception; UMTS P-CPICH; UMTS downlink primary common pilot shannel; complex channel coefficients; decision aided channel estimation; equal gain combining; maximal ratio combining; 3G mobile communication; AWGN; Channel estimation; Delay; Diversity reception; Downlink; Fading; Frequency; Multipath channels; Signal processing;
Conference_Titel :
Signals, Circuits and Systems, 2007. ISSCS 2007. International Symposium on
Conference_Location :
Iasi
Print_ISBN :
1-4244-0969-1
Electronic_ISBN :
1-4244-0969-1
DOI :
10.1109/ISSCS.2007.4292792
