Near Optimality of Matched Filter Detection for Cyclic Prefix Direct Sequence Spread Spectrum

Kenney, Brent A.; Majid, Arslan J; Moradi, Hussein; Farhang-Boroujeny, Behrouz

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DOE OSTI · 1856791

Near Optimality of Matched Filter Detection for Cyclic Prefix Direct Sequence Spread Spectrum

Kenney, Brent A.·Majid, Arslan J·Moradi, Hussein·Farhang-Boroujeny, Behrouz

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Abstract

Abstract—Cyclic Prefix Direct Sequence Spread Spectrum -DSSS) has been presented as a potential solution for ultrareliable low latency communications (URLLC) and massive machine type communication (mMTC), where the CP-DSSS waveform would operate as a secondary network at the same frequencies as the primary network but at much lower SNR. In this paper, we show that when operating in the low SNR regime, CP-DSSS achieves near optimum performance when using a matched filter (MF) detector at the receiver. Time reversal (TR) precoding at the transmitter is also analyzed. These results also carry forward into multi-antenna scenarios where array gain is preserved. With nearly optimal performance of MF detection, CP-DSSS can be implemented with simple device transceiver structures, reducing per-unit cost for massively deployed networks.

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5G and Beyond Communications 99 GENERAL AND MISCELLANEOUS Capacity Analysis CP-DSSS Filter-bank Multi-Carrier Spread Spectrum System Wireless Communications

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BibTeX RIS

Kenney, Brent A., Majid, Arslan J, Moradi, Hussein, Farhang-Boroujeny, Behrouz. 2020-05-13. Near Optimality of Matched Filter Detection for Cyclic Prefix Direct Sequence Spread Spectrum. https://www.osti.gov/biblio/1856791

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