Design And Implementation Of Efficient Media Access Control Protocol On USRP

MAC (Media Access Control) protocol is also an important part of distributed network, which is a key factor that affects the performances of a network directly. With the development of technology, it has great significance and value in the networks that combine the physical layer and media access layer effectively, take good use of resources and bring the ascension of the network performance. The article studies a distributed scheduling mechanism of FlashLinQ protocol, which is proposed by Qualcomm company.The protocol is effective use of space resources and have greater gain compared with the RTS/CTS mechanism of the CSMA/CA protocol. The physical layer of the protocol use OFDMA technology and an analog signal dectecting technology to perceived channel information. With the information, a parallel transmission of multiple links can be implemented within the signal coverage. So the protocol increases the throughput and inprove the performance of the network. In order to validate the FlashLinQ protocol, it is implemented in the USRP platform, which validates that our scheme has good performance in a real environment.