Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments

Jiabin LIU; Shihua ZHU; Wenyuan LI

doi:10.1093/ietcom/e89-b.3.879

Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments

Jiabin LIU, Shihua ZHU, Wenyuan LI

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This paper studies the optimization of the effective channel capacity of wideband code division multiple access (WCDMA) systems under Rayleigh fading environments. Firstly, the results for Shannon capacity of fading channels with channel side information are reviewed, where the capacity is achieved by using an optimal power control scheme. Secondly, an optimal interference threshold is set for a given system outage probability P_out to minimize total interference. Finally, the effective channel capacity of WCDMA is defined and a target SIR level γ^* is derived with the Lagrangian multiplier method to maximize the effective channel capacity. It is shown that is dependent on the power control interference ratio (PCIR) ρ, the number of diversity paths identified by the receiver M, and the outage probability of the system. Simulation results are provided to validate the theoretical deductions. We conclude that the total effective channel capacity will be maximized as long as M4, and ρ0.5 for a proper value of .

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.3 pp.879-885

Publication Date: 2006/03/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.3.879

Type of Manuscript: PAPER

Category: Terrestrial Radio Communications

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Jiabin LIU, Shihua ZHU, Wenyuan LI, "Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 3, pp. 879-885, March 2006, doi: 10.1093/ietcom/e89-b.3.879.
Abstract: This paper studies the optimization of the effective channel capacity of wideband code division multiple access (WCDMA) systems under Rayleigh fading environments. Firstly, the results for Shannon capacity of fading channels with channel side information are reviewed, where the capacity is achieved by using an optimal power control scheme. Secondly, an optimal interference threshold is set for a given system outage probability P_out to minimize total interference. Finally, the effective channel capacity of WCDMA is defined and a target SIR level γ^* is derived with the Lagrangian multiplier method to maximize the effective channel capacity. It is shown that is dependent on the power control interference ratio (PCIR) ρ, the number of diversity paths identified by the receiver M, and the outage probability of the system. Simulation results are provided to validate the theoretical deductions. We conclude that the total effective channel capacity will be maximized as long as M4, and ρ0.5 for a proper value of .
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.3.879/_p

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@ARTICLE{e89-b_3_879,
author={Jiabin LIU, Shihua ZHU, Wenyuan LI, },
journal={IEICE TRANSACTIONS on Communications},
title={Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments},
year={2006},
volume={E89-B},
number={3},
pages={879-885},
abstract={This paper studies the optimization of the effective channel capacity of wideband code division multiple access (WCDMA) systems under Rayleigh fading environments. Firstly, the results for Shannon capacity of fading channels with channel side information are reviewed, where the capacity is achieved by using an optimal power control scheme. Secondly, an optimal interference threshold is set for a given system outage probability P_out to minimize total interference. Finally, the effective channel capacity of WCDMA is defined and a target SIR level γ^* is derived with the Lagrangian multiplier method to maximize the effective channel capacity. It is shown that is dependent on the power control interference ratio (PCIR) ρ, the number of diversity paths identified by the receiver M, and the outage probability of the system. Simulation results are provided to validate the theoretical deductions. We conclude that the total effective channel capacity will be maximized as long as M4, and ρ0.5 for a proper value of .},
keywords={},
doi={10.1093/ietcom/e89-b.3.879},
ISSN={1745-1345},
month={March},}

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TY - JOUR
TI - Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments
T2 - IEICE TRANSACTIONS on Communications
SP - 879
EP - 885
AU - Jiabin LIU
AU - Shihua ZHU
AU - Wenyuan LI
PY - 2006
DO - 10.1093/ietcom/e89-b.3.879
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2006
AB - This paper studies the optimization of the effective channel capacity of wideband code division multiple access (WCDMA) systems under Rayleigh fading environments. Firstly, the results for Shannon capacity of fading channels with channel side information are reviewed, where the capacity is achieved by using an optimal power control scheme. Secondly, an optimal interference threshold is set for a given system outage probability P_out to minimize total interference. Finally, the effective channel capacity of WCDMA is defined and a target SIR level γ^* is derived with the Lagrangian multiplier method to maximize the effective channel capacity. It is shown that is dependent on the power control interference ratio (PCIR) ρ, the number of diversity paths identified by the receiver M, and the outage probability of the system. Simulation results are provided to validate the theoretical deductions. We conclude that the total effective channel capacity will be maximized as long as M4, and ρ0.5 for a proper value of .
ER -