Title :
Performance improvement with fast site switching in a CDMA forward link
Author :
Moon, Hichan ; Cox, Donald C.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
In this paper, we present a site switching diversity scheme with faster switching frequency than that of conventional site selection diversity transmission (SSDT). In a conventional SSDT, it is difficult to increase the switching rate due to the required feedback quality. The proposed fast switching scheme is configured with a centralized physical layer receiver situation including softer handover of a CDMA system. With the proposed scheme, it is possible to increase the switching rate without increasing the transmission power of the feedback information. We present the performance gain of the proposed fast switching by simulation. The proposed scheme can be combined with the conventional SSDT or the soft handover when the mobile is located at the boundary of two cells having different physical layer controllers.
Keywords :
cellular radio; code division multiple access; diversity reception; power control; radio links; radio receivers; telecommunication control; telecommunication switching; CDMA forward link; centralized physical layer receiver; code division multiple access; fast site switching; feedback quality; physical layer controllers; site selection diversity transmission; site switching diversity scheme; soft handover; switching rate; transmission power; Base stations; Diversity reception; Error analysis; Feedback; Moon; Multiaccess communication; Physical layer; Power control; Power system reliability; Switching frequency;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207755
