In massive machine-type communications (mMTC), user-specific and non-orthogonal signatures can be assigned to wireless devices for uplink grant-free access.In this paper, we analyze the cupcake ladder performance of signature-based grant-free random access in the presence of an adversary.To enhance the access security, we assume that an mMTC system
A technology to study the sensitivity of impact responses to prescribed test conditions is presented.Motor vehicle impacts are used to illustrate the principles of this sensitivity technology.Impact conditions are regulated by specifying either a corridor for the acceleration time history or other test parameters such as velocity change, static cru
In this work, an adaptive fuzzy backstepping fault-tolerant control (FTC) issue is tackled for uncertain fractional-order (FO) nonlinear systems with sensor and actuator faults.A fuzzy logic system is exploited to manage unknown nonlinearity.In addition, a novel FO nonlinear filter-based dynamic surface control (DSC) method is constructed, effectiv
In this study six different Trichoderma species were isolated form rhizosphere soils of paddy, banana, oil palm, rubber, vegetables and grass land soils.The species are T.harziaum, T.viride, T.koningii, T.asperrelum, and cirque colors lavender sky T.parareesei.The morphological study as pigmentation, colony growth and anatomical studies such as, co