Implementation of coherent IEEE 802.15.4 receiver on software defined radio platform

Coherent receivers provide better demodulation characteristics then non-coherent receivers especially with higher bit error probability signals. They require synchronization with received signal using preamble which is transmitted at beginning of IEEE 802.15.4 packet. Software defined radio doesn´t allow adjustment of local oscillator frequency using Costas Loop circuitry, so synchronization need to be performed by software synchronization in baseband. This paper represents implementation of coherent IEEE 802.15.4 receiver on software defined radio.