UMTS optimum cell load balancing for inhomogeneous traffic patterns

García-Lozano, Mario; Ruíz, Silvia; Bonafé, Juan José Olmos

doi:10.1109/vetecf.2004.1400153

Cited by 25 publications

(17 citation statements)

References 6 publications

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“…There are many works on UMTS network planning and optimization. The research topics range from BS location and coverage planning [3]- [5], [25], [43], antenna parameter configuration [15], [16], [33], to cell load balancing [18], [34]. For UMTS, the power control mechanism that links together the cells in resource consumption is an important aspect in performance modeling [2], [3], [19], [41], [42].…”

Section: Related Workmentioning

confidence: 99%

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

Siomina

Yuan

2012

IEEE Trans. Wireless Commun.

164

209

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Abstract-System-centric modeling and analysis are of key significance in planning and optimizing cellular networks. In this paper, we provide a mathematical analysis of performance modeling for LTE networks. The system model characterizes the coupling relation between the cell load factors, taking into account non-uniform traffic demand and interference between the cells with arbitrary network topology. Solving the model enables a network-wide performance evaluation in resource consumption. We develop and prove both sufficient and necessary conditions for the feasibility of the load-coupling system, and provide results related to computational aspects for numerically approaching the solution. The theoretical findings are accompanied with experimental results to instructively illustrate the application in optimizing LTE network configuration.

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Section: Related Workmentioning

confidence: 99%

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

Siomina

Yuan

2012

IEEE Trans. Wireless Commun.

164

209

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“…It is thus more of an offline design methodology, more useful during the deployment phase, than an online LB mechanism implementable in the operational phase. Authors in [86] proposed a similar centralised LB algorithm for CDMA based systems that use both antenna adaptation and power adaptation together. As highlighted by the authors, this is time consuming and hence not agile enough to be used for real time LB.…”

Section: C) Lb Through Hybrid Approachesmentioning

confidence: 99%

A Survey of Self Organisation in Future Cellular Networks

Aliu

Imran

et al. 2013

IEEE Commun. Surv. Tutorials

379

217

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This article surveys the literature over the period of the last decade on the emerging field of self organisation as applied to wireless cellular communication networks. Self organisation has been extensively studied and applied in adhoc networks, wireless sensor networks and autonomic computer networks; however in the context of wireless cellular networks, this is the first attempt to put in perspective the various efforts in form of a tutorial/survey. We provide a comprehensive survey of the existing literature, projects and standards in self organising cellular networks. Additionally, we also aim to present a clear understanding of this active research area, identifying a clear taxonomy and guidelines for design of self organising mechanisms. We compare strength and weakness of existing solutions and highlight the key research areas for further development. This paper serves as a guide and a starting point for anyone willing to delve into research on self organisation in wireless cellular communication networks.

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“…The former may result in multiple neighbors (lines [4][5][6][7][8][9][10][11][12], whereas the latter (lines 14-21) always defines a single neighbor. Let N i denote the number of cells that may potentially overlap with cell i.…”

Section: Tabu Searchmentioning

confidence: 99%

“…For 3G networks, a common practice of setting power for coverage has been the uniform strategy, i.e., to reserve a roughly constant amount (typically 10-15% of the total cell power) to the coverage signal in all cells. A number of previous studies (e.g., [9,20,21]) have shown, however, that the strategy may be inefficient. Adopting a non-uniform power allocation and optimizing its amount can yield considerable power savings as well as better load balancing between cells.…”

Section: Introductionmentioning

confidence: 99%

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Solving a minimum-power covering problem with overlap constraint for cellular network design

Chen¹,

Yuan²

2010

European Journal of Operational Research

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We consider a type of covering problem in cellular networks. Given the locations of base stations, the problem amounts to determining cell coverage at minimum cost in terms of the power usage. Overlap between adjacent cells is required in order to support handover. The problem we consider is NP -hard. We present integer linear models and study the strengths of their continuous relaxations. Preprocessing is used to reduce problem size and tighten the models. Moreover, we design a tabu search algorithm for finding near-optimal solutions effectively and time-efficiently. We report computational results for both synthesized instances and networks originating from real planning scenarios. The results show that one of the integer models leads to tight bounds, and the tabu search algorithm generates highquality solutions for large instances in short computing time.

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UMTS optimum cell load balancing for inhomogeneous traffic patterns

Cited by 25 publications

References 6 publications

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

A Survey of Self Organisation in Future Cellular Networks

Solving a minimum-power covering problem with overlap constraint for cellular network design

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