Joint Optimization Framework for Operational Cost Minimization in Green Coverage-Constrained Wireless Networks
Ganesh Prasad, Deepak Mishra, and Ashraf Hossain

TL;DR
This paper presents a joint optimization framework for base station placement, density, and power allocation in wireless networks to minimize operational costs while satisfying coverage constraints, with significant cost savings demonstrated.
Contribution
It introduces a novel decoupling approach for a complex nonconvex optimization problem in wireless network deployment, providing practical solutions for cost-effective coverage.
Findings
Achieves up to 65% reduction in operational costs.
Provides insights into optimal base station placement and power allocation.
Validates the approach through numerical simulations.
Abstract
In this work, we investigate the joint optimization of base station (BS) location, its density, and transmit power allocation to minimize the overall network operational cost required to meet an underlying coverage constraint at each user equipment (UE), which is randomly deployed following the binomial point process (BPP). As this joint optimization problem is nonconvex and combinatorial in nature, we propose a non-trivial solution methodology that effectively decouples it into three individual optimization problems. Firstly, by using the distance distribution of the farthest UE from the BS, we present novel insights on optimal BS location in an optimal sectoring type for a given number of BSs. After that we provide a tight approximation for the optimal transmit power allocation to each BS. Lastly, using the latter two results, the optimal number of BSs that minimize the operational…
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