Smart Infrastructure Design for Smart Cities

Intelligent transportation systems (ITS) are one part of smart cities aimed at efficient public transport, smart parking, enhanced road safety, intelligent traffic management, on-vehicle entertainment, and so on. In ITS, roadside unit (RSU) deployment should be well designed because RSUs act as service providers and gateways to the Internet for vehicular users. The authors' RSU deployment strategy simultaneously maximizes the communication coverage and reduces the energy consumption of RSUs. They first formulate a multiobjective optimization RSU deployment problem and solve it through an evolutionary algorithm. Then they conduct extensive simulations; results demonstrate that the proposed strategy significantly improves both energy efficiency and network connectivity.