SIR Measurement with Data Channel Transmission Gap Using Multipath Interference Canceller for High-Speed Packet Transmission in W-CDMA Forward Link

Akihiro FUJIWARA; Kenichi HIGUCHI; Mamoru SAWAHASHI

SIR Measurement with Data Channel Transmission Gap Using Multipath Interference Canceller for High-Speed Packet Transmission in W-CDMA Forward Link

Akihiro FUJIWARA, Kenichi HIGUCHI, Mamoru SAWAHASHI

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This paper proposes a signal-to-interference power ratio (SIR) measurement method that employs the transmission gap of a data channel (TGDC) interval for precise link adaptation, in order to eliminate the influence of severe multipath interference (MPI) from a shared packet channel and to decrease further the instantaneous variations in interference components for high-speed packet transmission in the forward link using adaptive data modulation associated with the multipath interference canceller (MPIC). Computer simulation results elucidate that the required received signal energy per chip-to-background noise power spectrum density ratio (E_c/N₀) based on the SIR measurement employing TGDC at the throughput of 4.2 Mbps is decreased by approximately 2.0 dB compared to the conventional method without TGDC using chip-based interference power measurement for the number of paths L = 1, and by approximately 1.5 dB compared to the conventional method using symbol-based interference power measurement for L = 2, respectively. Therefore, we show that the adaptive data modulation with the SIR measurement exploiting the TGDC interval achieves almost the maximum (i.e., almost ideal selection) throughput, without changing the SIR measurement method according to the propagation conditions such as the number of multipaths.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E85-A No.7 pp.1546-1556

Publication Date: 2002/07/01

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Type of Manuscript: Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)

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Akihiro FUJIWARA, Kenichi HIGUCHI, Mamoru SAWAHASHI, "SIR Measurement with Data Channel Transmission Gap Using Multipath Interference Canceller for High-Speed Packet Transmission in W-CDMA Forward Link" in IEICE TRANSACTIONS on Fundamentals, vol. E85-A, no. 7, pp. 1546-1556, July 2002, doi: .
Abstract: This paper proposes a signal-to-interference power ratio (SIR) measurement method that employs the transmission gap of a data channel (TGDC) interval for precise link adaptation, in order to eliminate the influence of severe multipath interference (MPI) from a shared packet channel and to decrease further the instantaneous variations in interference components for high-speed packet transmission in the forward link using adaptive data modulation associated with the multipath interference canceller (MPIC). Computer simulation results elucidate that the required received signal energy per chip-to-background noise power spectrum density ratio (E_c/N₀) based on the SIR measurement employing TGDC at the throughput of 4.2 Mbps is decreased by approximately 2.0 dB compared to the conventional method without TGDC using chip-based interference power measurement for the number of paths L = 1, and by approximately 1.5 dB compared to the conventional method using symbol-based interference power measurement for L = 2, respectively. Therefore, we show that the adaptive data modulation with the SIR measurement exploiting the TGDC interval achieves almost the maximum (i.e., almost ideal selection) throughput, without changing the SIR measurement method according to the propagation conditions such as the number of multipaths.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_7_1546/_p

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@ARTICLE{e85-a_7_1546,
author={Akihiro FUJIWARA, Kenichi HIGUCHI, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={SIR Measurement with Data Channel Transmission Gap Using Multipath Interference Canceller for High-Speed Packet Transmission in W-CDMA Forward Link},
year={2002},
volume={E85-A},
number={7},
pages={1546-1556},
abstract={This paper proposes a signal-to-interference power ratio (SIR) measurement method that employs the transmission gap of a data channel (TGDC) interval for precise link adaptation, in order to eliminate the influence of severe multipath interference (MPI) from a shared packet channel and to decrease further the instantaneous variations in interference components for high-speed packet transmission in the forward link using adaptive data modulation associated with the multipath interference canceller (MPIC). Computer simulation results elucidate that the required received signal energy per chip-to-background noise power spectrum density ratio (E_c/N₀) based on the SIR measurement employing TGDC at the throughput of 4.2 Mbps is decreased by approximately 2.0 dB compared to the conventional method without TGDC using chip-based interference power measurement for the number of paths L = 1, and by approximately 1.5 dB compared to the conventional method using symbol-based interference power measurement for L = 2, respectively. Therefore, we show that the adaptive data modulation with the SIR measurement exploiting the TGDC interval achieves almost the maximum (i.e., almost ideal selection) throughput, without changing the SIR measurement method according to the propagation conditions such as the number of multipaths.},
keywords={},
doi={},
ISSN={},
month={July},}

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TY - JOUR
TI - SIR Measurement with Data Channel Transmission Gap Using Multipath Interference Canceller for High-Speed Packet Transmission in W-CDMA Forward Link
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1546
EP - 1556
AU - Akihiro FUJIWARA
AU - Kenichi HIGUCHI
AU - Mamoru SAWAHASHI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2002
AB - This paper proposes a signal-to-interference power ratio (SIR) measurement method that employs the transmission gap of a data channel (TGDC) interval for precise link adaptation, in order to eliminate the influence of severe multipath interference (MPI) from a shared packet channel and to decrease further the instantaneous variations in interference components for high-speed packet transmission in the forward link using adaptive data modulation associated with the multipath interference canceller (MPIC). Computer simulation results elucidate that the required received signal energy per chip-to-background noise power spectrum density ratio (E_c/N₀) based on the SIR measurement employing TGDC at the throughput of 4.2 Mbps is decreased by approximately 2.0 dB compared to the conventional method without TGDC using chip-based interference power measurement for the number of paths L = 1, and by approximately 1.5 dB compared to the conventional method using symbol-based interference power measurement for L = 2, respectively. Therefore, we show that the adaptive data modulation with the SIR measurement exploiting the TGDC interval achieves almost the maximum (i.e., almost ideal selection) throughput, without changing the SIR measurement method according to the propagation conditions such as the number of multipaths.
ER -