Quality Indicator Matrices and Their Contribution to WCDMA Network Design

Jamaa, S. Ben; Dubreil, H.; Altman, Zwi; Ortega, A.

doi:10.1109/tvt.2005.845159

Cited by 11 publications

(6 citation statements)

References 5 publications

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“…Currently, there are few works [13] that show an user information system containing the relationship between base stations and quality indicators and that still address the main user complaints according to their geographic region. In this work, a study of the quality of communication services in the region of Minas Gerais, Brazil, will be performed.…”

Section: Theoretical Reviewmentioning

confidence: 99%

Information System for the Improvement of Telecommunication Service Quality

Assis

Rodríguez

Rosa

2017

Anais Do Simpósio Brasileiro De Sistemas De Informação (SBSI)

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This work describes an information system regarding to the telecommunication service with the goal to inform to the telephony service users about the operators signal quality and the users' opinion about the telecommunication operators. The system contains information of cellular base station locations and the results are crossed with sentiment analyses of sentences extracted from a social network, which are related to the telecommunication services. The study aims to detect complaints and dissatisfaction of users about a determined service, helping to make a relation between the users' complains extracted from social network with the number of base stations in the same geographic area of the user's social network. Therefore, the proposed information system can be used by the National Telecommunications Agency of each country for monitoring the quality-of-service of cellular network operators.

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Section: Theoretical Reviewmentioning

confidence: 99%

Information System for the Improvement of Telecommunication Service Quality

Assis

Rodríguez

Rosa

2017

Anais Do Simpósio Brasileiro De Sistemas De Informação (SBSI)

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“…Our approach in this paper is more precise in the sense that we take into account the state of both the own and the neighbour cells rather than assuming a certain distribution. The coupling between base stations of a WCDMA system is modelled by means of quality indicator matrices in [19]. That paper focuses on how the coupling between (not necessarily adjacent cells) can be characterized, rather than on how the coupling affects the blocking probabilities in a dynamic multi-rate environment.…”

Section: Related Workmentioning

confidence: 99%

On multi‐cell admission control in CDMA networks

Fodor¹,

Lindström²

2007

Int J Communication

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SUMMARYWe consider a multi-cell (MC) code division multiple access (CDMA) system that supports multiple service classes, including peak rate allocated and elastic ones. Peak rate allocated sessions-when admitted into the system-transmit at a constant bit rate, while elastic sessions can be slowed down at the expense of increasing their residency time. Admitted sessions cause an instantaneous bit rate-dependent interference in neighbour cells. In this rather general setting, we propose a method to calculate the class-wise blocking probabilities as the functions of the estimated so-called inter-cell coupling factors. In the paper this coupling factor is the ratio between the uplink path gains to different Node-B:s (that can be easily obtained in a CDMA system from pilot measurement reports), but our model could include other coupling measures as well. We find that when these coupling factors are underestimated, the system may get into false states (FSs) or false rate states (FRSs) that lead to violating the noise rise threshold. As traffic becomes increasingly elastic, the probability of FSs decreases, but the probability of FRSs increases. Based on numerical results, we make the point that as the traffic becomes more elastic, avoiding the underestimation of these coupling factors as well as exercising MC admission control plays an increasingly important role in guaranteeing proper service quality.

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“…Recently, inter-cell interaction representation approaches were introduced to a limited extent in [4]- [7]. In [7], the authors have proposed an interesting quality indicator matrix assuming that the received interference of each cell can be isolated but without proposing an isolation scheme.…”

Section: Introductionmentioning

confidence: 99%

“…In [7], the authors have proposed an interesting quality indicator matrix assuming that the received interference of each cell can be isolated but without proposing an isolation scheme. Furthermore, uplink coupling matrices were proposed in [4]- [5] based on analytical approaches that use system measurements.…”

Section: Introductionmentioning

confidence: 99%

Novel Inter-Cell Interaction Approach for WCDMA-based Cognitive Networks

Nasreddine

Sallent

Perez-Romero

et al. 2007

2007 IEEE International Conference on Communications

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Abstract-In this paper, we propose a novel analytical framework that is able to capture inter-cell interactions and relevant variations in WCDMA systems using the so-called coupling matrix. Coupling matrix properties related to its spectral radius are analyzed and used to introduce a pertinent indicator which is able to dynamically optimize spectrum efficiency in the context of cognitive networks. Herein, an advanced spectrum management methodology based on coupling matrices is proposed as an illustrative example. Simulation results have shown that the proposed methodology has the capability to adapt to relevant changes in the network and outperforms the frequency allocation in classical hierarchical cell structure planning.

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Quality Indicator Matrices and Their Contribution to WCDMA Network Design

Cited by 11 publications

References 5 publications

Information System for the Improvement of Telecommunication Service Quality

Information System for the Improvement of Telecommunication Service Quality

On multi‐cell admission control in CDMA networks

Novel Inter-Cell Interaction Approach for WCDMA-based Cognitive Networks

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