Title :
Interference-cancellation-based IPDL method for position location in WCDMA systems
Author :
Kim, Sangheon ; Jeong, Yangseok ; Lee, Chungyong
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An interference-cancellation-based idle period downlink (IC-IPDL) method is proposed to improve hearing in mobile-positioning systems. While the IPDL method ceases all transmissions in the serving base station during short intervals, the proposed IC-IPDL method maintains common pilot channel (CPICH) during an idle period to provide better stability to the wireless communication systems. Instead, CPICH is cancelled out in a mobile by using interference-cancellation techniques. The performances of the proposed method and the IPDL method are theoretically analyzed and the analyses are verified through computer simulations.
Keywords :
broadband networks; code division multiple access; interference suppression; mobility management (mobile radio); radio links; radiofrequency interference; stability; telecommunication channels; WCDMA system; code-division multiple-access; common pilot channel; idle period downlink method; interference-cancellation technique; mobile positioning system; wireless communication system; Base stations; Downlink; Multiaccess communication; Multiple access interference; Performance analysis; Propagation delay; Radio propagation; Signal resolution; Stability; Wireless communication;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2004.838884
