A stable high-efficient high speed transmission solution is important for a network with a huge number of sensors and a high data rate requirement.Gigabit ethernet using unshielded twisted cable as its transmission medium can reach up to 100 meters on Category 5 line.According to this

we realized a high speed transmission solution based on gigabit ethernet PHY transceiver.High speed switch block is implemented in a field-programmable gate array to switch MAC data frames between different ports.This solution not only transmits frame at a high data rate but also handles them by FPGA.The data rate in this structure is much higher than the traditional CPU + MAC controller + PHY structure.Experimental results show that the gigabit Ethernet-based high speed transmission solution works efficiently in large sensor networks.