Modelling Feasible Network Configurations for UMTS

Eisenblätter, Andreas; Wessäly, Roland; Martín, Alexander; Fügenschuh, Armin; Wegel, Oliver; Koch, Thorsten; Achterberg, Tobias; Koster, Arie M. C. A.

doi:10.1007/978-1-4757-3762-2_1

Cited by 45 publications

(35 citation statements)

References 5 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%

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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%

“…By the SINR requirement, the power expenditure of one cell is a linear function in those of the other cells. As a result, the power control mechanism is represented by a system of linear equations, which sometimes is referred to as UMTS interference coupling [15], [16]. Interference coupling can be modeled for both downlink and uplink.…”

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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“…A recent development of OR in 2G networks is the integration of channel assignment and base station location [22]. At present, there is a rapid deployment of third generation (3G) and beyond-3G cellular networks, for which the planning process does not involve channel assignment, but other types of design decisions [6,7,12]. One important planning task in 3G and beyond-3G networks is radio coverage.…”

Section: Introductionmentioning

confidence: 99%

“…Mathematical programming models as well as heuristic algorithms have been proposed by, for example, Amaldi et al [2,3], Matar and Schmeink [16], and Zhang et al [23], and Zhang et al [24]. Eisenblätter et al [5,6] present integer models and solution methods for optimization of both base station location and antenna configuration. The planning objectives considered in these references are network deployment cost and performance.…”

Section: Introductionmentioning

confidence: 99%

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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“…Pilot power levels strongly affect coverage and service [2]. The pilot power of a cell effectively determines the cell size, and, consequently, the traffic load in the cell.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Pilot Power for Service Coverage and Smooth Handover in WCDMA Networks

Siomina

Yuan

2005

IFIP International Federation for Information Processing

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In WCDMA networks, the presence of a cell is announced through a common pilot channel (CPICH). The power levels of the pilot channels have a great impact on coverage and service quality. Using mathematical optimization techniques, we address the problem of minimizing the amount of pilot power for providing service coverage and smooth handover. We present numerical results for several realistic planning scenarios of WCDMA networks, and analyze the pilot power solutions found by optimization versus those obtained by ad hoc strategies.

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Modelling Feasible Network Configurations for UMTS

Cited by 45 publications

References 5 publications

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

Analysis of Cell Load Coupling for LTE Network Planning and Optimization

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

Optimization of Pilot Power for Service Coverage and Smooth Handover in WCDMA Networks

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