74results about How to "Reduce delivery delay" patented technology

The invention discloses an information forwarding method in a resource-constrained opportunity network based on node excitation, aiming at solving the problems of node blind cooperation and the like of the existing node excitation which fails to take occupation and energy consumption of node cache in the network into consideration. According to the information forwarding method disclosed by the invention, a pricing foundation is set by taking idle cache space, rest energy and owned monetary value on the node as well as size and rest survival time of the message into comprehensive consideration. Hereby, the node, as a rational entity, is scientifically described, and with variation of an environment attribution and variation of cooperative willingness, and depending on an instinct of seeking for owned benefit maximization of the node, rational excitation node cooperation is achieved. Furthermore, when the rest energy of the node is rare, the network service life of the node can be prolonged; and when the idle cache space of the node is comparatively small, the method is favorable for relieving the network jamming, so that the energy consumption can be effectively reduced, and the network average transmission delay and delivery rate can be improved.

The invention discloses a low dropout regulator, which comprises an error amplifier, a buffer circuit, a P-channel metal oxide semiconductor (PMOS) regulation transistor, an N-channel metal oxide semiconductor (NMOS) push-pull tube, a voltage division feedback circuit, a compensation circuit and an output circuit, wherein the gate of the PMOS regulation transistor is connected with the output end of the buffer circuit, the source of the PMOS regulation transistor is connected with power voltage, and the drain of the PMOS regulation transistor is used as the output end of the low dropout regulator; the gate of the NMOS push-pull tube is connected with the output end of the error amplifier, the drain of the NMOS push-pull tube is connected with the drain of the PMOS regulation transistor, and the source of the NMOS push-pull tube is grounded; and the error amplifier, the compensation circuit, the buffer circuit, the PMOS regulation transistor, the voltage division feedback circuit and an output circuit form a main control loop, and the error amplifier, the compensation circuit, the NMOS push-pull tube, the voltage division feedback circuit and the output circuit form an auxiliary control loop. According to the low dropout regulator, the transient response of the regulator can be quickened, and the accuracy of output voltage can be improved.