Presentation 2001/3/8
Performance Evaluations on Site Independent Diversity Transmit Power Control for Inter-Cell Site Diversity in W-CDMA Forward Link
Akihito Morimoto, Kenichi Higuchi, Mamoru Sawahashi,
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Abstract(in English) We formerly proposed the independent transmit power control (hereafter SIDTPC) algorithm in which transmit power of cell site (base station (BS)) candidates during soft handover (SHO) (or site diversity) is independently controlled using uniquely assigned transmit power control (TPC) bits for decreasing the impact of the TPC bits error in W-CDMA forward link inter-cell site diversity. This paper evaluated the performance with SIDTPC during SHO comparing to that with conventional TPC method (CTPC) and with site selection diversity transmitter (SSDT) in which only one cell site with the minimum path loss transmits, focusing on the major parameters such as the number of cell site candidates and the path loss difference between cell site candidates and a mobile station. Computer simulation results showed that the required total transmit power of cell site candidates using SIDTPC could be decreased by approximately 0.4 (0.6) dB and 0.8 (2.0) dB compared to that using CTPC and SSDT, respectively, irrespective of the path loss difference in slow fading channel such as the maximum Doppler frequency of 5Hz when the number of cell site candidates was 2(3).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Mobile radio / W-CDMA / Site diversity / Soft handover / Fast transmit power control
Paper # SST2000-107,A・P2000-241,RCS2000-241,MW2000-232
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Committee RCS
Conference Date 2001/3/8(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Evaluations on Site Independent Diversity Transmit Power Control for Inter-Cell Site Diversity in W-CDMA Forward Link
Sub Title (in English)
Keyword(1) Mobile radio
Keyword(2) W-CDMA
Keyword(3) Site diversity
Keyword(4) Soft handover
Keyword(5) Fast transmit power control
1st Author's Name Akihito Morimoto
1st Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.()
2nd Author's Name Kenichi Higuchi
2nd Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.
3rd Author's Name Mamoru Sawahashi
3rd Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.
Date 2001/3/8
Paper # SST2000-107,A・P2000-241,RCS2000-241,MW2000-232
Volume (vol) vol.100
Number (no) 663
Page pp.pp.-
#Pages 8
Date of Issue