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Smart city article details

Title A Steiner Tree Based Efficient Network Infrastructure Design In 5G Urban Vehicular Networks
ID_Doc 4921
Authors Laha M.; Datta R.
Year 2023
Published Computer Communications, 201
DOI http://dx.doi.org/10.1016/j.comcom.2023.01.016
Abstract Autonomous or assisted driving under next-generation vehicular applications requires a very high data rate with ultra-reliable low latency. The design of a proper network infrastructure plays a primary role in supporting these demands. This necessitates the network infrastructure nodes, i.e., the edge nodes and 5G RSUs, to be efficiently placed and connected across a smart city in a cost-effective manner. Such planning under a restricted capital expenditure budget presents a significant research challenge. We address this issue by formulating it as a Steiner Tree with Profits, Budget and Hop constraint problem for designing cost-efficient network infrastructure in an urban vehicular scenario. The optimization maximizes the long-term profits under the budget and hops constraint. The problem under consideration is a known NP-hard problem, and therefore, we have employed a Breakout Local Search based heuristic to solve it. Performance evaluation with actual traffic in real cities with diverse setups reveals crucial insights for designing cost-efficient network infrastructure in 5G urban vehicular networks. © 2023 Elsevier B.V.
Author Keywords 5G; Breakout local search; Network infrastructure design; Steiner Tree; Vehicular networks


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