Performance Study of Hybrid Spread Spectrum Techniques

Author

Yachna Sharma, University of Tennessee - Knoxville

Date of Award

12-2005

Degree Type

Thesis

Degree Name

Master of Science

Major

Electrical Engineering

Major Professor

Mostofa K. Howlader

Committee Members

Michael J. Roberts, J. Reece Roth, Stephen F. Smith

Abstract

This thesis focuses on the performance analysis of hybrid direct sequence/slow frequency hopping (DS/SFH) and hybrid direct sequence/fast frequency hopping (DS/FFH) systems under multi-user interference and Rayleigh fading. First, we analyze the performance of direct sequence spread spectrum (DSSS), slow frequency hopping (SFH) and fast frequency hopping (FFH) systems for varying processing gains under interference environment assuming equal bandwidth constraint with Binary Phase Shift Keying (BPSK) modulation and synchronous system. After thorough literature survey, we show that hybrid DS/FFH systems outperform both SFH and hybrid DS/SFH systems under Rayleigh fading and multi-user interference. Also, both hybrid DS/SFH and hybrid DS/FFH show performance improvement with increasing spreading factor and decreasing number of hopping frequencies.

Recommended Citation

Sharma, Yachna, "Performance Study of Hybrid Spread Spectrum Techniques. " Master's Thesis, University of Tennessee, 2005.
https://trace.tennessee.edu/utk_gradthes/2282