DOE OSTI · 1819942
Cyclic Prefix Direct Sequence Spread Spectrum Capacity Analysis
Abstract
Cyclic Prefix Direct Sequence Spread Spectrum (CP-DSSS) is a novel waveform that has the potential to solve 5G objectives such as ultra reliable low latency communication (URLLC) and massive machine Type Communication (mMTC). This paper analyzes the capacity of the CP-DSSS waveform in comparison with Orthogonal Frequency Domain Multiplexing OFDM). CP-DSSS can be optimized to achieve the same capacity as OFDM when optimized by the water-filling algorithm. A significant advantage for CP-DSSS is that this capacity can be achieved with all symbols being transmitted with the same effective rate. As a result, stronger forward error correction codes can be used in a CP-DSSS implementation compared to an OFDM implementation with resource block constraints. In addition, the applicability of CP-DSSS as a waveform for a secondary network operating in the same frequency band as the primary network is discussed.
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Kenney, Brent A., Jenkins, Stephen, Majid, Arslan J, Moradi, Hussein, Farhang-Boroujeny, Behrouz. 2020-11-18. Cyclic Prefix Direct Sequence Spread Spectrum Capacity Analysis. https://www.osti.gov/biblio/1819942
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