“…In this signi cance, the network that end users request for access is transformed from an Internet network with uncontrollable parameters to a transparent EPSN network with controllable parameters. However, as the network features best-e ort service [17], when mass requests from end users are accessed into the EPSN network via DACIOT, resource competition will take place and lead to the following problems: (1) the best-quality resources are taken and occupied by nonurgent requests so that urgent requests are inaccessible and cannot be transmitted onto the sensing device via the EPSN network transmission; for example, the switch control access command is blocked by ordinary access requests on the sensing device; (2) as users' requests are dynamic and diversi ed, the heterogeneous resources of DACIOT may not meet the demand for high service quality; for example, when users' request commands which are used to query sensed data come to access, they require a very strict response delay and packet loss rate; and (3) when allocating resources, it is hard for DACIOT to treat the various types of service requests fairly, causing service overleaning; for example, DACIOT may allocate more resources to users who request access to humidity and temperature sensing devices while allocating less resources to users who request access to carbon dioxide sensing devices. erefore, it is critical and urgent for DACIOT to e ciently coordinate the mass access requests from users for quality resources.…”