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Synchronization of Bursty QPSK Narrowband Satellite Receiver Having Large CFO - An Implementation on C66x TI DSP
- Source :
- ICEIC
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- This paper demonstrates the implementation of a QPSK/ time division multiple access (TDMA) narrowband (NB) satellite receiver using short preamble-based synchronization in the presence of timing, frequency and phase offsets, and with additive white Gaussian noise (AWGN). The narrowband satellite communication (NB-SATCOM) system, which is mostly preferred for low-rate data transfer, is primarily affected by large carrier frequency offset (CFO). The implemented receiver uses a 32-symbol short preamble for synchronization of time, large frequency and phase, and it gives better bit error rate (BER) performance at low energy per bit to noise density ratio (E b /N 0 ). As the proposed design uses short preamble, it is able to achieve a high level of spectral efficiency with less computational complexity. The functional verification of the synchronization algorithm is done using Matlab simulations and the algorithm implementation uses fixed-point C. The receiver design has been implemented for 24 TDMA channels in Texas Instruments (TI) multi-core C66x DSPs.
Details
- Database :
- OpenAIRE
- Journal :
- 2019 International Conference on Electronics, Information, and Communication (ICEIC)
- Accession number :
- edsair.doi...........9af5e479a64da415a0aedea1adc4f119