Title :
Capacity enhancement for HSDPA in W-CDMA system
Author :
Horng, J. Henry ; Vannucci, Giovanni ; Zhang, Jinyu
Author_Institution :
Mitsubishi Electr. Res. Labs., Murray Hill, NJ, USA
Abstract :
The upper bounds for SNR gains from several interference cancellation scenarios are calculated under different multipath environments and different power allocations for HSDPA (high speed downlink packet access) users. The simulation results show that cancellation of the intercell pilot has a larger gain than intracell pilot cancellation. When the power allocated to the HSDPA signal is reduced, the gains of canceling the interference from the intracell pilot and other HSDPA codes are also reduced, due to excessive MUI (multiple user interference). Further performance improvement based on the MPIC (multipath interference cancellation) technique is also studied, which includes intracell MUI cancellation.
Keywords :
3G mobile communication; code division multiple access; interference suppression; multipath channels; packet radio networks; radiofrequency interference; 3G wireless communication; SNR; W-CDMA system; high speed downlink packet access; intercell pilot; intracell pilot; multipath environments; multipath interference cancellation; multiple user interference; power allocation; third generation wireless communication; Code division multiplexing; Communication standards; Downlink; Fading; Interference cancellation; Laboratories; Multiaccess communication; Throughput; Upper bound; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040681
