Abstract The present contribution derives a theoretical framework for constructing novel geometrical constraints in the context of density-based topology optimization. Principally, predefined dimensionality is enforced locally on components optimized structures. These are defined using principal values (singular values) from singular value decomposition points clouds represented by elemental ce...

In software-defined wireless sensor networks (SDWSNs), topology control is a fundamental procedure to maintain the global network topology. However, open channels of SDWSNs make it possible for an attacker eavesdrop, replay, or modify messages, thus posing great threat operations. The security SDWSN has not received enough attention yet. Identity-based cryptography (IBC) may be fitter due its c...