Abstract
A method for computing the bit error probability (BEP) of multi-carrier modulated (MCM) direct-sequence spread-spectrum (DSSS) using differentially coherent phase-shift keying (DPSK) with equal gain combining in Doppler spread Rician fading is given. It is based on Gauss-Chebyshev quadrature integration of the moment generating function of the decision statistic at the combiner output. The results show that as the specular-to-diffuse power ratio, K, increases the crossover points of the BEP curves for various orders of diversity (number of MCM carriers) occur at increasing values of average energy-per-bit-to-noise spectral density ratio (SNR). Thus, for low to moderate SNR's, increased diversity may not give improvement while, for sufficiently high SNR's it does.
| Original language | English |
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| Pages | 1100-1103 |
| Number of pages | 4 |
| State | Published - 1999 |
| Event | IEEE Military Communications Conference (MILCOM 1999) - Atlantic City, NJ, USA Duration: 31 Oct 1999 → 3 Nov 1999 |
Conference
| Conference | IEEE Military Communications Conference (MILCOM 1999) |
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| City | Atlantic City, NJ, USA |
| Period | 31/10/99 → 3/11/99 |