Noncoherent Hybrid DS-SFH Spread-Spectrum Multiple-Access Communications.
| dc.contributor.author | Geraniotis, Evaggelos A. | en_US |
| dc.contributor.department | ISR | en_US |
| dc.date.accessioned | 2007-05-23T09:34:47Z | |
| dc.date.available | 2007-05-23T09:34:47Z | |
| dc.date.issued | 1986 | en_US |
| dc.description.abstract | The performance of noncoherent reception in synchronous hybrid direct-sequence/slow-frequency-hopped spread-spectrum multiple- access communication systems operating through additive white Gaussian noise channels is investigated. Systems with binary and Mary frequency-shift-keying modulation and noncoherent demodulation, as well as systems with differential-phase-shift keying modulation and differentially coherent demodulation are examined and their probability of error is evaluated for random frequency-hopping patterns and signature sequences. The multiple-access capability of noncoherent hybrid spread- spectrum is shown to be superior to that of noncoherent purely frequency-hopped spread-spectrum , interior to that of noncoherent purely direct-sequence spread-spectrum for systems with the same bandwidth expansion. Comparison for hybrid systems with coherent , noncoherent demodulation shows a considerable loss in the performance of the noncoherent systems. | en_US |
| dc.format.extent | 1197659 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1903/4430 | |
| dc.language.iso | en_US | en_US |
| dc.relation.ispartofseries | ISR; TR 1986-4 | en_US |
| dc.title | Noncoherent Hybrid DS-SFH Spread-Spectrum Multiple-Access Communications. | en_US |
| dc.type | Technical Report | en_US |
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