TY - GEN
T1 - Hybrid DS/FFH spread-spectrum
T2 - 2011 IEEE Military Communications Conference, MILCOM 2011
AU - Olama, Mohammed M.
AU - Ma, Xiao
AU - Kuruganti, Teja P.
AU - Smith, Stephen F.
AU - Djouadi, Seddik M.
PY - 2011
Y1 - 2011
N2 - Spread-spectrum modulation techniques have been adopted for many current and future military communication systems to accommodate high data rates with high link integrity, even in the presence of significant multipath effects and interfering signals. A more recent synergistic combination is a direct-sequence spread-spectrum (DSSS) signaling with the use of integrally coordinated frequency hopping (FH) and/or time-hopping (TH) modulation, generically dubbed hybrid spread-spectrum (HSS). A highly useful form of this transmission scheme for many types of command, control, and sensing applications is the specific code-related combination of standard DSSS modulation with "fast" frequency hopping (FFH), wherein multiple frequency hops occur within a single data-bit time. In this paper, detailed error-probability analyses are performed for a hybrid DS/FFH system over standard Gaussian and fading-type channels, progressively including the effects from wide-band, partial-band, and follow-on jamming, multi-user interference and/or varying degrees of Rayleigh and Rician fading. In addition, a simulation-based study of the DS/FFH performance is performed and compared to several forms of existing standard DSSS and FHSS wireless networks. The parameter space of HSS is also explored to further demonstrate the adaptability of the waveform for varied harsh RF signal environments.
AB - Spread-spectrum modulation techniques have been adopted for many current and future military communication systems to accommodate high data rates with high link integrity, even in the presence of significant multipath effects and interfering signals. A more recent synergistic combination is a direct-sequence spread-spectrum (DSSS) signaling with the use of integrally coordinated frequency hopping (FH) and/or time-hopping (TH) modulation, generically dubbed hybrid spread-spectrum (HSS). A highly useful form of this transmission scheme for many types of command, control, and sensing applications is the specific code-related combination of standard DSSS modulation with "fast" frequency hopping (FFH), wherein multiple frequency hops occur within a single data-bit time. In this paper, detailed error-probability analyses are performed for a hybrid DS/FFH system over standard Gaussian and fading-type channels, progressively including the effects from wide-band, partial-band, and follow-on jamming, multi-user interference and/or varying degrees of Rayleigh and Rician fading. In addition, a simulation-based study of the DS/FFH performance is performed and compared to several forms of existing standard DSSS and FHSS wireless networks. The parameter space of HSS is also explored to further demonstrate the adaptability of the waveform for varied harsh RF signal environments.
KW - Hybrid spread spectrum
KW - Monte Carlo simulation
KW - Rayleigh/Rician fading
KW - direct sequence
KW - frequency hopping
KW - multi-user interference
KW - wide-band jamming
UR - http://www.scopus.com/inward/record.url?scp=84863014265&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2011.6127636
DO - 10.1109/MILCOM.2011.6127636
M3 - Conference contribution
AN - SCOPUS:84863014265
SN - 9781467300810
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 2136
EP - 2141
BT - 2010 Military Communications Conference, MILCOM 2010
Y2 - 7 November 2011 through 10 November 2011
ER -