Title :
Soft handover performance of a wideband CDMA testbed system for IMT-2000
Author :
Yamaguchi, Akira ; Takeuchi, Yoshio ; Watanabe, Fumio ; Yokai, Toshikazu
Author_Institution :
KDD R&D Labs. Inc., Saitama, Japan
Abstract :
We have developed a wideband code division multiple access (CDMA) testbed for the purpose of verifying an International Mobile Telecommunications-2000 (IMT-2000) system. The testbed has capabilities of soft handover (SHO) with an algorithm based on the received SIR. We report the performance of SHO from the results of laboratory/field experiments and computer simulations. An urban area and a suburban area were chosen for field experiments. This paper discusses the influence of SHO parameters and the propagation environment on the performance of SHO. Furthermore, we evaluated some SHO algorithms by computer simulations with propagation data measured in the field experiments of both areas
Keywords :
broadband networks; code division multiple access; land mobile radio; multiuser channels; radio networks; radiofrequency interference; radiowave propagation; IMT-2000; International Mobile Telecommunications-2000; SHO parameters; algorithm; computer simulations; field experiments; laboratory/field experiments; measured propagation data; propagation environment; received SIR; soft handover algorithms; soft handover performance; suburban area; urban area; wideband CDMA testbed system; wideband code division multiple access; Circuit testing; Codecs; Computer simulation; Laboratories; Multiaccess communication; Packet switching; Rayleigh channels; Switching circuits; System testing; Wideband;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851431
