Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access

Akihito MORIMOTO; Sadayuki ABETA; Mamoru SAWAHASHI

doi:10.1093/ietcom/e88-b.1.150

Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access

Akihito MORIMOTO, Sadayuki ABETA, Mamoru SAWAHASHI

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This paper proposes cell selection (CS) based on shadowing variation for the forward-link Orthogonal Frequency and Code Division Multiplexing (OFCDM) packet wireless access. We clarify its effects using a broadband propagation channel model in a comparison with fast cell selection (FCS), which tracks the instantaneous fading variation, and with the conventional slow CS, which tracks only the distance-dependent path loss, based on radio link level simulations that take into account time-varying instantaneous fading and shadowing variations. The simulation results show that the achievable throughput with FCS improves slightly in a broadband channel with an increasing number of paths when the average path-loss difference between two cells is greater than 2 dB. Nevertheless, we show that the optimum CS interval becomes approximately 100 msec, because the interval can track the time-varying shadowing variation considering low-to-high mobility up to the maximum Doppler frequency of 200 Hz. Consequently, we show that the throughput by employing the CS based on shadowing variation with the selection interval of 100 msec is increased by approximately 5 and 15% compared to that using the conventional slow CS with the selection interval of 1 sec, for the maximum Doppler frequency of 20 and 200 Hz, respectively.

Publication: IEICE TRANSACTIONS on Communications Vol.E88-B No.1 pp.150-158

Publication Date: 2005/01/01

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DOI: 10.1093/ietcom/e88-b.1.150

Type of Manuscript: Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)

Category: Cell Selection

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Akihito MORIMOTO, Sadayuki ABETA, Mamoru SAWAHASHI, "Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access" in IEICE TRANSACTIONS on Communications, vol. E88-B, no. 1, pp. 150-158, January 2005, doi: 10.1093/ietcom/e88-b.1.150.
Abstract: This paper proposes cell selection (CS) based on shadowing variation for the forward-link Orthogonal Frequency and Code Division Multiplexing (OFCDM) packet wireless access. We clarify its effects using a broadband propagation channel model in a comparison with fast cell selection (FCS), which tracks the instantaneous fading variation, and with the conventional slow CS, which tracks only the distance-dependent path loss, based on radio link level simulations that take into account time-varying instantaneous fading and shadowing variations. The simulation results show that the achievable throughput with FCS improves slightly in a broadband channel with an increasing number of paths when the average path-loss difference between two cells is greater than 2 dB. Nevertheless, we show that the optimum CS interval becomes approximately 100 msec, because the interval can track the time-varying shadowing variation considering low-to-high mobility up to the maximum Doppler frequency of 200 Hz. Consequently, we show that the throughput by employing the CS based on shadowing variation with the selection interval of 100 msec is increased by approximately 5 and 15% compared to that using the conventional slow CS with the selection interval of 1 sec, for the maximum Doppler frequency of 20 and 200 Hz, respectively.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.1.150/_p

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@ARTICLE{e88-b_1_150,
author={Akihito MORIMOTO, Sadayuki ABETA, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access},
year={2005},
volume={E88-B},
number={1},
pages={150-158},
abstract={This paper proposes cell selection (CS) based on shadowing variation for the forward-link Orthogonal Frequency and Code Division Multiplexing (OFCDM) packet wireless access. We clarify its effects using a broadband propagation channel model in a comparison with fast cell selection (FCS), which tracks the instantaneous fading variation, and with the conventional slow CS, which tracks only the distance-dependent path loss, based on radio link level simulations that take into account time-varying instantaneous fading and shadowing variations. The simulation results show that the achievable throughput with FCS improves slightly in a broadband channel with an increasing number of paths when the average path-loss difference between two cells is greater than 2 dB. Nevertheless, we show that the optimum CS interval becomes approximately 100 msec, because the interval can track the time-varying shadowing variation considering low-to-high mobility up to the maximum Doppler frequency of 200 Hz. Consequently, we show that the throughput by employing the CS based on shadowing variation with the selection interval of 100 msec is increased by approximately 5 and 15% compared to that using the conventional slow CS with the selection interval of 1 sec, for the maximum Doppler frequency of 20 and 200 Hz, respectively.},
keywords={},
doi={10.1093/ietcom/e88-b.1.150},
ISSN={},
month={January},}

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TY - JOUR
TI - Cell Selection Based on Shadowing Variation for Forward Link Broadband OFCDM Packet Wireless Access
T2 - IEICE TRANSACTIONS on Communications
SP - 150
EP - 158
AU - Akihito MORIMOTO
AU - Sadayuki ABETA
AU - Mamoru SAWAHASHI
PY - 2005
DO - 10.1093/ietcom/e88-b.1.150
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2005
AB - This paper proposes cell selection (CS) based on shadowing variation for the forward-link Orthogonal Frequency and Code Division Multiplexing (OFCDM) packet wireless access. We clarify its effects using a broadband propagation channel model in a comparison with fast cell selection (FCS), which tracks the instantaneous fading variation, and with the conventional slow CS, which tracks only the distance-dependent path loss, based on radio link level simulations that take into account time-varying instantaneous fading and shadowing variations. The simulation results show that the achievable throughput with FCS improves slightly in a broadband channel with an increasing number of paths when the average path-loss difference between two cells is greater than 2 dB. Nevertheless, we show that the optimum CS interval becomes approximately 100 msec, because the interval can track the time-varying shadowing variation considering low-to-high mobility up to the maximum Doppler frequency of 200 Hz. Consequently, we show that the throughput by employing the CS based on shadowing variation with the selection interval of 100 msec is increased by approximately 5 and 15% compared to that using the conventional slow CS with the selection interval of 1 sec, for the maximum Doppler frequency of 20 and 200 Hz, respectively.
ER -