A point-to-point (P2P) communication system based on the CPM-DSSS scheme ensures reliability, security, and antijamming capabilities. However, for reliable detection of data carrier synchronization of CPM-DSSS based system is one of the requirements. This paper presents a joint algorithm for carrier frequency offset (CFO) and carrier phase offset (CPO) estimation for CPM-DSSS based P2P system. The results indicate that the proposed CFO estimator is unbiased and can accurately estimate a wide range of offsets. Moreover, the proposed algorithm is compared with another research work. The results show that the proposed CFO and CPO estimation algorithm outperforms its counterpart with a performance improvement of about 9 dB and above, respectively. The effectiveness of the proposed estimator in the Stanford University Interim (SUI)-1 multipath fading channel is also demonstrated. Finally, the proposed estimator?s bit-error-rate (BER) performance and computational complexity are also given for the CPM-DSSS P2P system.
Carrier frequency offset, wideband CPM-DSSS waveform of software defined radio, carrier synchronization, carrier phase offset, point-to-point communication
SHEHZADI, SAIMA; KULSOOM, FARZANA; ZEESHAN, MUHAMMAD; KHAN, QASIM UMAR; and SHEIKH, SHAHZAD AMIN
"Joint carrier frequency and phase offset estimation algorithm for CPM-DSSSbased secure point-to-point communication,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 29:
7, Article 8.
Available at: https://journals.tubitak.gov.tr/elektrik/vol29/iss7/8