Title :
Channel and interference mitigation in the MUOS base-to-user link
Author :
Okrah, Peter ; Bahr, Randall K.
Author_Institution :
Gen. Dynamics C4 Syst., Scottsdale, AZ
Abstract :
The mobile user objective system (MUOS) will provide global communication for the U.S. government using WCDMA technology. The base-to-user (B2U) physical link is subject to imperfections consisting of multi-path channel effects, multiple high-powered non-MUOS in-band interferers, and competing MUOS WCDMA signals (multiple access interference (MAI)). Various techniques are developed to mitigate the effects of these channel imperfections. This paper analyzes the effects on signal-to-noise ratio (SNR) caused by multi-path channel propagation, undesired interference within the B2U spectrum, and MAI.
Keywords :
code division multiple access; interference; mobile communication; B2Uspectrum; MUOS base-to-user link; Mobile User Objective System; U.S. government; WCDMA technology; base-to-user physical link; channel mitigation; competing MUOS WCDMA signals; global communication; high-powered non-MUOS in-band interferers; interference mitigation; multi-path channel effects; multi-path channel propagation; multiple access interference; signal-to-noise ratio; Bit error rate; Computational modeling; Degradation; Fading; Frequency; Interference; Multiaccess communication; Multipath channels; Quadrature phase shift keying; Signal processing;
Conference_Titel :
Military Communications Conference, 2008. MILCOM 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2676-8
Electronic_ISBN :
978-1-4244-2677-5
DOI :
10.1109/MILCOM.2008.4753492
