Class-based downlink capacity estimation of a WCDMA network in a multiservice context

Dou, Chie; Chang, Yu-Hua

doi:10.1016/j.comcom.2005.01.007

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…References [3,4] present a work of estimation the required radio capacity of WCDMA in downlink, and [5] investigates the effects of the TNL CAC algorithm on Iub dimensioning. But the work from the current research does not investigate the effects caused by the coexistence of Radio CAC and TNL CAC.…”

Section: Introductionmentioning

confidence: 99%

Impacts of air interface admission control and user mobility on UTRAN transport simulations

Chen

Timm‐Giel

et al. 2009

Telecommun Syst

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UMTS Terrestrial Radio Access Network (UTRAN) Transport Network Layer dimensioning has been of great interest among network researchers and planners due to the limit of Iub bandwidth. This paper investigates the potential impacts caused by Connection Admission Control (CAC) mechanism of the air interface and User Mobility (UM) on simulations carried out for the UTRAN transport network domain. Independent from the TNL CAC mechanism of the transport network which is in charge of Iub link bandwidth, the Radio CAC function deals with the highly non-linear resources needed for an attempted connection depending on its specific propagation and interference situation. The consideration of the air interface acting as bottleneck results into a less challenging amount of traffic for the transport domain. In addition, mobile user behaviors, e.g. UM, may dynamically change traffic load at the air interface, and in consequence affect Iub load, which has a very close correlation with cell load. In this work, a simulation model with Radio CAC mechanism and Handover strategies is implemented to study this correlation, and evaluate the UTRAN transport network performance given a limited radio capacity. The analysis on the impacts of the Radio CAC and UM are derived from qualitative simulations.

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Section: Introductionmentioning

confidence: 99%

Impacts of air interface admission control and user mobility on UTRAN transport simulations

Chen

Timm‐Giel

et al. 2009

Telecommun Syst

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“…This ratio is expressed as a function of the required power of a mobile station i activating a service j and as a function of various problems harming the radio interface, such as: other-toown cell interferences and thermal noise [1][2][3][4]. Thus, WCDMA network must allocate power by taking into account the required quality of service characterizing each service, and environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, WCDMA network must allocate power by taking into account the required quality of service characterizing each service, and environmental conditions. This power is dynamically adjusted several times to preserve the energy per bit to noise spectral density ratio (E b /N 0 ) constant [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The estimation of the WCDMA cell capacity is based on the signal to interferences ratio received at the level of an active mobile station in downlink and at the level of the Node B [1][2]. This ratio is expressed as a function of the required power of a mobile station i activating a service j and as a function of various problems harming the radio interface, such as: other-toown cell interferences and thermal noise [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Impact of other-cell interferences on downlink capacity in WCDMA Network

Alami¹,

Aknin²,

Moussaoui³

2013

IJACSA

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Abstract-Before the establishment of the UMTS network, operators are obliged to make the planning process to ensure a better quality of service (QOS) for mobile stations belonging to WCDMA cells. This process consists of estimating a set of parameters characterizing the radio cell in the downlink direction. Among them, we are interested in the Node B total required power P Tot , and the maximum cell capacity, in the case of voice only and in the case of voice/video. To implement the effect of the other-cell interferences power, modeled as a fraction f DL of the own-cell received power, on various radio parameters described previously, we focused our study on two different scenarios: the first is based on an isolated cell and the second, on multiple cells. In addition, when the WCDMA cell reaches its maximum capacity, the introduction of admission control algorithms is essential to maintain the QOS of the ongoing mobile stations. For this purpose, we have proposed an admission control algorithm, based both on the Node B total required power and the cell loading factor. This algorithm gives rigorous results compared to the existing ones in the literature.

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“…Downlink capacity has been studied for the case of street microcells assuming that omnidirectional antennas are used in the base stations without the use of the power control technique [13]. In [14], a class-based downlink capacity estimation of a WCDMA network has been given. Also, the downlink throughput has been given.…”

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confidence: 99%

WCDMA Multiclass Downlink Capacity and Interference Statistics of Cigar-Shaped Microcells in Highways

Ahmed

2013

Wireless Pers Commun

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Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: . It is found that increasing the sector range from 500m to 1000m will increase the sector downlink capacity. Also, it is found that increasing the value of the propagation parameters (σ 1 and σ 2 ) will reduce the downlink sector capacity. It is noticed that, the effect of changing the propagation exponent s 1 is null while increasing the propagation exponent s 2 will increase the downlink capacity.

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Class-based downlink capacity estimation of a WCDMA network in a multiservice context

Cited by 7 publications

References 12 publications

Impacts of air interface admission control and user mobility on UTRAN transport simulations

Impacts of air interface admission control and user mobility on UTRAN transport simulations

Impact of other-cell interferences on downlink capacity in WCDMA Network

WCDMA Multiclass Downlink Capacity and Interference Statistics of Cigar-Shaped Microcells in Highways

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