A Mathematical Programming Approach for Pilot Power Optimization in WCDMA Networks
نویسنده
چکیده
Pilot power optimization in WCDMA networks is receiving increasing research attention. In this paper, we propose a mathematical programming approach for this problem. In particular, we present a novel mathematical formulation for minimizing pilot power subject to full coverage. In the formulation, the optimal power levels are determined simultaneously for all the cells. We further enhance the formulation by utilizing the discrete nature of the power levels. Our case study shows that optimized power levels yield substantial savings in total power consumption when compared to using a uniform pilot power.
منابع مشابه
Optimization of Pilot Power for Service Coverage and Smooth Handover in WCDMA Networks
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 ...
متن کاملA Novel Method for Designing and Optimization of Networks
In this paper, system planning network is formulated with mixed-integer programming. Two meta-heuristic procedures are considered for this problem. The cost function of this problem consists of the capital investment cost in discrete form, the cost of transmission losses and the power generation costs. The DC load flow equations for the network are embedded in the constraints of the mathematica...
متن کاملA Comparative Investigation on Heuristic Optimization of WCDMA Radio Networks
The planning and optimization of WCDMA (wideband code-division multiple access)radio network issues remain vital, and are carried out using static snapshot-based simulation. To improve the accuracy of the static simulation, link-level performance factors, such as the impact of power control, pilot power and soft handover, have to be taken into account. These factors have not been investigated t...
متن کاملA New Mathematical Approach based on Conic Quadratic Programming for the Stochastic Time-Cost Tradeoff Problem in Project Management
In this paper, we consider a stochastic Time-Cost Tradeoff Problem (TCTP) in PERT networks for project management, in which all activities are subjected to a linear cost function and assumed to be exponentially distributed. The aim of this problem is to maximize the project completion probability with a pre-known deadline to a predefined probability such that the required additional cost is min...
متن کاملAutomated optimization of key WCDMA parameters
This paper validates the feasibility of automated optimization of key wideband code division multiple access (WCDMA) radio resource management parameters using control methods. The parameters are regularly adjusted in order to improve performance. The parameters examined in this study include the total cell transmission power target, the received total interference target, the downlink radio li...
متن کامل