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ICC
2007
IEEE
15 years 2 months ago
2007
IEEE
Abstract-- Most user cooperation protocols work in a timesharing manner, where each user transmits its own message and relays for the other at different segments of a time slot. We...
ICC
2007
IEEE
15 years 5 months ago
2007
IEEE
—Frequency hopping systems have been widely used in military communications to prevent hostile jamming, interception and detection. In traditional frequency hopping (FH) systems,...
ICC
2007
IEEE
15 years 5 months ago
2007
IEEE
— In this paper, Cramer-Rao lower bounds (CRLBs) for estimation of vital signal parameters, such as respiration and heart-beat rates, using ultra-wideband (UWB) pulses are derive...
ICC
2007
IEEE
15 years 5 months ago
2007
IEEE
— In this paper, we propose a novel signaling scheme and corresponding noncoherent fusion rules for wireless sensor networks. In the proposed scheme, sensors transmit censored de...
ICC
2007
IEEE
15 years 5 months ago
2007
IEEE
— Most of the existing works on space-time block codes (STBC) assume the channels are quasi-static, i.e., they remain invariant within one block. This assumption is not always tr...