Mutual interference among users can abruptly increase othercell interference and cause overload situation in coexisting WCDMA and HSDPA systems. Traffic overloading can degrade the performance of the systems. This letter proposes a new dynamic downlink load control (DDLC) algorithm to reduce performance degradation due to overload in the coexistence of WCDMA and HSDPA systems. With the proposed algorithm, the downlink load is controlled according to load states classified by two load-control thresholds, and traffic overloading is alleviated by dynamically adjusting the CQI values reported by users, based on the downlink load as well as channel variations. The proposed algorithm is simulated and results show that the DDLC scheme improves the performance of both WCDMA and HSDPA systems in terms of outage probability, total system throughput, and radio resource utilization.
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Chang Soon KANG, Junsu KIM, Dan Keun SUNG, "A Dynamic Downlink Load Control Scheme for WCDMA and HSDPA Systems" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 6, pp. 2327-2331, June 2009, doi: 10.1587/transcom.E92.B.2327.
Abstract: Mutual interference among users can abruptly increase othercell interference and cause overload situation in coexisting WCDMA and HSDPA systems. Traffic overloading can degrade the performance of the systems. This letter proposes a new dynamic downlink load control (DDLC) algorithm to reduce performance degradation due to overload in the coexistence of WCDMA and HSDPA systems. With the proposed algorithm, the downlink load is controlled according to load states classified by two load-control thresholds, and traffic overloading is alleviated by dynamically adjusting the CQI values reported by users, based on the downlink load as well as channel variations. The proposed algorithm is simulated and results show that the DDLC scheme improves the performance of both WCDMA and HSDPA systems in terms of outage probability, total system throughput, and radio resource utilization.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.2327/_p
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@ARTICLE{e92-b_6_2327,
author={Chang Soon KANG, Junsu KIM, Dan Keun SUNG, },
journal={IEICE TRANSACTIONS on Communications},
title={A Dynamic Downlink Load Control Scheme for WCDMA and HSDPA Systems},
year={2009},
volume={E92-B},
number={6},
pages={2327-2331},
abstract={Mutual interference among users can abruptly increase othercell interference and cause overload situation in coexisting WCDMA and HSDPA systems. Traffic overloading can degrade the performance of the systems. This letter proposes a new dynamic downlink load control (DDLC) algorithm to reduce performance degradation due to overload in the coexistence of WCDMA and HSDPA systems. With the proposed algorithm, the downlink load is controlled according to load states classified by two load-control thresholds, and traffic overloading is alleviated by dynamically adjusting the CQI values reported by users, based on the downlink load as well as channel variations. The proposed algorithm is simulated and results show that the DDLC scheme improves the performance of both WCDMA and HSDPA systems in terms of outage probability, total system throughput, and radio resource utilization.},
keywords={},
doi={10.1587/transcom.E92.B.2327},
ISSN={1745-1345},
month={June},}
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TY - JOUR
TI - A Dynamic Downlink Load Control Scheme for WCDMA and HSDPA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 2327
EP - 2331
AU - Chang Soon KANG
AU - Junsu KIM
AU - Dan Keun SUNG
PY - 2009
DO - 10.1587/transcom.E92.B.2327
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2009
AB - Mutual interference among users can abruptly increase othercell interference and cause overload situation in coexisting WCDMA and HSDPA systems. Traffic overloading can degrade the performance of the systems. This letter proposes a new dynamic downlink load control (DDLC) algorithm to reduce performance degradation due to overload in the coexistence of WCDMA and HSDPA systems. With the proposed algorithm, the downlink load is controlled according to load states classified by two load-control thresholds, and traffic overloading is alleviated by dynamically adjusting the CQI values reported by users, based on the downlink load as well as channel variations. The proposed algorithm is simulated and results show that the DDLC scheme improves the performance of both WCDMA and HSDPA systems in terms of outage probability, total system throughput, and radio resource utilization.
ER -