Wireless transducer network energy saving method based on cross layers
A wireless sensor and network technology, applied in wireless communication, energy-saving ICT, data exchange network, etc., can solve problems such as unsatisfactory energy-saving effect, low node energy utilization rate, and no consideration of the working cycle of MAC layer nodes, so as to prolong the survival time. period and achieve the effect of information sharing
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[0027] Figure 1 describes the maintenance process of the neighbor table. Research shows that the probability of a sensor network node successfully receiving a data packet mainly depends on the receiver's signal strength, which is generally measured by the Received Signal Strength Index (RSSI). At the same time, the received signal strength index (RSSI) value has a great relationship with the transmission power between nodes, and the study found a linear relationship. Therefore, first set a threshold of RSSI value for the current node i, a threshold for the node to successfully receive data packets, and a set of transmission powers of different levels, and at the same time, the node i uses this set of transmission powers of different levels to transmit power to other wireless sensor networks. The node broadcasts data packets. After node i+1 receives this group of data packets sent with different levels of transmission power, the physical layer of node i+1 obtains the received signa...
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