The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Kertas kerja ini menyiasat kesan penindasan gangguan daripada saluran fizikal khusus (DPCH) kadar yang lebih tinggi daripada pembatal gangguan berbilang peringkat koheren jenis selari (COMSIC) dengan anggaran saluran berulang (ICE) oleh eksperimen makmal dalam terbalik W-CDMA yang dikawal oleh kuasa penghantaran. pautan. Keputusan eksperimen menjelaskan bahawa apabila dua DPCH yang mengganggu wujud dengan faktor penyebaran (SF) 8 dan dengan nisbah tenaga isyarat sasaran setiap nisbah ketumpatan spektrum kuasa bit-ke-gangguan (Eb/I0) kawalan kuasa penghantaran pantas, ΔEb/I0, daripada -6 dB (yang sepadan dengan 64 DPCH serentak dengan SF = 64, iaitu, kadar simbol yang sama seperti DPCH yang dikehendaki), penerima COMSIC yang dilaksanakan dengan ICE mempamerkan penurunan ketara dalam tenaga isyarat penghantaran yang diperlukan bagi setiap nisbah ketumpatan kuasa hingar bit ke latar belakang (Eb/N0) pada kadar ralat bit purata (BER) sebanyak 10-3 (manakala penerima Rake berasaskan penapis (MF) yang dipadankan tidak dapat merealisasikan purata BER sebanyak 10-3 disebabkan oleh gangguan pelbagai capaian (MAI) yang teruk). Didapati juga prestasi BER yang dicapai pada purata BER 10-3 daripada penerima COMSIC dengan kuantisasi penukar A/D sebanyak 8 bit dalam eksperimen makmal terdegradasi kira-kira 1.0 dB dan 4.0 dB berbanding dengan keputusan simulasi komputer, apabila ΔEb/I0=-6 dB dan -9 dB, masing-masing, disebabkan oleh ralat pengkuantitian isyarat yang dikehendaki dan ralat carian laluan untuk penggabung Rake. Akhirnya, kami menunjukkan bahawa penghantaran yang diperlukan Eb/N0 pada purata BER 10-3 COMSIC peringkat ketiga dengan ICE berkurangan kira-kira 0.3 dan 0.5 dB berbanding COMSIC dengan anggaran saluran jenis maklum balas keputusan (DFCE) dengan dan tanpa penerimaan kepelbagaian antena, masing-masing.
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Salinan
Yoshihisa KISHIYAMA, Koichi OKAWA, Mamoru SAWAHASHI, "Experiments on Parallel-Type Coherent Multistage Interference Canceller with Iterative Channel Estimation for W-CDMA Mobile Radio" in IEICE TRANSACTIONS on Fundamentals,
vol. E84-A, no. 12, pp. 3000-3011, December 2001, doi: .
Abstract: This paper investigates the interference suppression effect from much higher rate dedicated physical channels (DPCHs) of a parallel-type coherent multistage interference canceller (COMSIC) with iterative channel estimation (ICE) by laboratory experiments in the transmit-power-controlled W-CDMA reverse link. The experimental results elucidate that when two interfering DPCHs exist with the spreading factor (SF) of 8 and with the ratio of the target signal energy per bit-to-interference power spectrum density ratio (Eb/I0) of fast transmit power control, ΔEb/I0, of -6 dB (which corresponds to 64 simultaneous DPCHs with SF = 64, i.e., the same symbol rate as the desired DPCH), the implemented COMSIC receiver with ICE exhibits a significant decrease in the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average bit error rate (BER) of 10-3 (while the matched filter (MF)-based Rake receiver could not realize the average BER of 10-3 due to severe multiple access interference (MAI)). It is also found that the achieved BER performance at the average BER of 10-3 of the COMSIC receiver with the A/D converter quantization of 8 bits in the laboratory experiments is degraded by approximately 1.0 dB and 4.0 dB compared to the computer simulation results, when ΔEb/I0=-6 dB and -9 dB, respectively, due to the quantization error of the desired signal and path search error for the Rake combiner. Finally, we show that the required transmit Eb/N0 at the average BER of 10-3 of the third-stage COMSIC with ICE is decreased by approximately 0.3 and 0.5 dB compared to that of COMSIC with decision-feedback type channel estimation (DFCE) with and without antenna diversity reception, respectively.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e84-a_12_3000/_p
Salinan
@ARTICLE{e84-a_12_3000,
author={Yoshihisa KISHIYAMA, Koichi OKAWA, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Experiments on Parallel-Type Coherent Multistage Interference Canceller with Iterative Channel Estimation for W-CDMA Mobile Radio},
year={2001},
volume={E84-A},
number={12},
pages={3000-3011},
abstract={This paper investigates the interference suppression effect from much higher rate dedicated physical channels (DPCHs) of a parallel-type coherent multistage interference canceller (COMSIC) with iterative channel estimation (ICE) by laboratory experiments in the transmit-power-controlled W-CDMA reverse link. The experimental results elucidate that when two interfering DPCHs exist with the spreading factor (SF) of 8 and with the ratio of the target signal energy per bit-to-interference power spectrum density ratio (Eb/I0) of fast transmit power control, ΔEb/I0, of -6 dB (which corresponds to 64 simultaneous DPCHs with SF = 64, i.e., the same symbol rate as the desired DPCH), the implemented COMSIC receiver with ICE exhibits a significant decrease in the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average bit error rate (BER) of 10-3 (while the matched filter (MF)-based Rake receiver could not realize the average BER of 10-3 due to severe multiple access interference (MAI)). It is also found that the achieved BER performance at the average BER of 10-3 of the COMSIC receiver with the A/D converter quantization of 8 bits in the laboratory experiments is degraded by approximately 1.0 dB and 4.0 dB compared to the computer simulation results, when ΔEb/I0=-6 dB and -9 dB, respectively, due to the quantization error of the desired signal and path search error for the Rake combiner. Finally, we show that the required transmit Eb/N0 at the average BER of 10-3 of the third-stage COMSIC with ICE is decreased by approximately 0.3 and 0.5 dB compared to that of COMSIC with decision-feedback type channel estimation (DFCE) with and without antenna diversity reception, respectively.},
keywords={},
doi={},
ISSN={},
month={December},}
Salinan
TY - JOUR
TI - Experiments on Parallel-Type Coherent Multistage Interference Canceller with Iterative Channel Estimation for W-CDMA Mobile Radio
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3000
EP - 3011
AU - Yoshihisa KISHIYAMA
AU - Koichi OKAWA
AU - Mamoru SAWAHASHI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E84-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2001
AB - This paper investigates the interference suppression effect from much higher rate dedicated physical channels (DPCHs) of a parallel-type coherent multistage interference canceller (COMSIC) with iterative channel estimation (ICE) by laboratory experiments in the transmit-power-controlled W-CDMA reverse link. The experimental results elucidate that when two interfering DPCHs exist with the spreading factor (SF) of 8 and with the ratio of the target signal energy per bit-to-interference power spectrum density ratio (Eb/I0) of fast transmit power control, ΔEb/I0, of -6 dB (which corresponds to 64 simultaneous DPCHs with SF = 64, i.e., the same symbol rate as the desired DPCH), the implemented COMSIC receiver with ICE exhibits a significant decrease in the required transmit signal energy per bit-to-background noise power spectrum density ratio (Eb/N0) at the average bit error rate (BER) of 10-3 (while the matched filter (MF)-based Rake receiver could not realize the average BER of 10-3 due to severe multiple access interference (MAI)). It is also found that the achieved BER performance at the average BER of 10-3 of the COMSIC receiver with the A/D converter quantization of 8 bits in the laboratory experiments is degraded by approximately 1.0 dB and 4.0 dB compared to the computer simulation results, when ΔEb/I0=-6 dB and -9 dB, respectively, due to the quantization error of the desired signal and path search error for the Rake combiner. Finally, we show that the required transmit Eb/N0 at the average BER of 10-3 of the third-stage COMSIC with ICE is decreased by approximately 0.3 and 0.5 dB compared to that of COMSIC with decision-feedback type channel estimation (DFCE) with and without antenna diversity reception, respectively.
ER -