This paper studies a Wireless Networked Control System which utilizes the IEEE 802.11b protocol without modifications to communicate between sensors and actuators in a production line environment. OPNET simulations are used to measure the end-to-end delay from sensor to controller and then from controller to actuator. It is observed that the measured delays, including all types of data processi…
A large number of new data consuming applications are emerging in the daily routines of mobile users. Device-to-Device (D2D) communication as a new paradigm is introduced to reduce the increasing traffic and offload it to the user equipment (UE). With the development of UE multi-radio interface, we first develop a new hybrid architecture concept for D2D communication. The architecture combines …
According to the demands of electric equipment monitoring and control, a design of on-off control system for electric equipment based on WiFi is presented. The system introduces WiFi wireless communication technology into the communication network construction, which realizes the rapid wireless data transmission, simplifies the network organizing method and saves the network building cost. The …
WiFi Direct is a new technology proposed by WiFi Alliance to enable direct device to device communications using the same spectrum as WiFi. In some scenarios, communication distance between two devices cannot be covered by one hop, and thus, multihop Device to Device (D2D) communication is required to solve this problem. However, existing WiFi Direct protocol doesn't provide multihop message ro…