Title :
A new software radio based distributed base station architecture and its application to 3G UMTS employing signal combining techniques
Author :
Nie, Hong ; Mathiopoulos, P. Takis
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
6/24/1905 12:00:00 AM
Abstract :
We propose a software radio based distributed base station (DBS) architecture which replaces conventional base stations with a cluster of DBS and a central processing station (CPS) which are connected by a high speed data communication network. As most signal processing is carried out in the CPS, the DBS is compact and lightweight, and requires low power for operation, so it can be deployed economically and virtually everywhere. Furthermore, since the radio signals received by different DBS are processed in one CPS, signal combining techniques (SCT) can be employed to improve the reverse link capacity of the 3G UMTS. Analytical expressions for this improvement are derived using the concept of percentage of coverage area with and without the SCT. Complementary computer simulation results for a cdma2000 system have also shown that by employing the SCT, the proposed software radio based DBS architecture can achieve significant reverse link capacity improvement.
Keywords :
cellular radio; code division multiple access; data communication; signal processing; 3G UMTS; cdma2000 system; cells; central processing station; computer simulation; coverage area percentage; distributed base station; high speed data communication network; mobile communications; reverse link capacity; signal combining techniques; signal processing; software radio; 3G mobile communication; Application software; Base stations; Computer architecture; Computer simulation; Data communication; Power generation economics; Satellite broadcasting; Signal processing; Software radio;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002700