Title :
Advanced high speed packet access receiver for WCDMA multicode transmissions with high-order modulation
Author :
Wang, Haifeng ; Haikola, Vile ; Lilleberg, Jorma
Author_Institution :
Nokia Mobile Phones, Oulu, Finland
Abstract :
High speed downlink packet access (HSDPA) is underway, supporting the evolution of third-generation systems to meet the rapidly developing needs for high data rates. High order modulation has been proposed for the adaptive modulation and coding sets to increase the transmission data rate for users with high signal-to-noise-plus-interference ratio. However, high order modulation is significantly less robust to noise, interference, and channel estimation errors. An advanced HSDPA receiver using equalized parallel interference cancellation is presented to suppress the interference. Link level simulations for WCDMA multicode transmissions in frequency-selective Rayleigh fading channels indicate significant performance advantages over conventional RAKE receiver with only 2-3 times complexity increase.
Keywords :
3G mobile communication; Rayleigh channels; adaptive codes; adaptive modulation; code division multiple access; computational complexity; interference suppression; mobile radio; modulation coding; packet radio networks; radio receivers; radiofrequency interference; 5 MHz; HSDPA; RAKE receiver; Rayleigh fading channels; SNIR; W-CDMA; WCDMA multicode transmissions; adaptive coding; adaptive modulation; channel estimation errors; frequency-selective channels; high order modulation; high speed downlink packet access; high speed packet access receiver; interference suppression; parallel interference cancellation; signal-to-noise-plus-interference ratio; third-generation systems; Channel estimation; Downlink; Fading; Interference cancellation; Interference suppression; Modulation coding; Multiaccess communication; Noise cancellation; Noise robustness; RAKE receivers;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1045191
