OFDM-Based Packet Transceiver on Usrp Using Labview
Eduru Hemanth Kumar, V. V. Mani · Apple Academic Press eBooks · 2019
Orthogonal frequency division multiplexing (OFDM) is one of the most used multicarrier technique in today’s wireless standards, due to its attractive properties providing robustness to the overall system performance. Software-defined radio (SDR) is becoming a very popular choice for developing, prototyping, and testing various wireless communication architectures. In this chapter, we present the implementation of OFDM-based packet transceiver architecture using universal software radio peripheral (USRP); an SDR platform in LabVIEW. The OFDM symbols are generated in accordance with the IEEE 802.11 specifications with symbols encapsulated in packet format before transmission. The system performance is measured in terms of packet received ratio (PRR) by considering various real-time channel conditions. Results are seemed to be more practical in nature concluding the PRR performance at different gains of the antenna under line of sight (LOS) and non-line of sight (N-LOS) conditions.