Abstract: Bandwidth allocation configuration and fully decentralized adaptive medium access control (AMAC) systems and methods with support for time critical applications, spectrum efficiency, scalability enhancements, and fair allocation of bandwidth among nodes sharing a common channel. The methods fully integrate TDMA and CSMA/CA channel access approaches and incorporate adaptive congestion and collisions avoidance scheme to reduce bandwidth wastage and diminish adverse cross layers interactions.

Abstract: Bandwidth allocation configuration and fully decentralized adaptive medium access control (AMAC) systems and methods with support for time critical applications, spectrum efficiency, scalability enhancements, and fair allocation of bandwidth among nodes sharing a common channel. The methods fully integrate TDMA and CSMA/CA channel access approaches and incorporate adaptive congestion and collisions avoidance scheme to reduce bandwidth wastage and diminish adverse cross layers interactions.

Abstract: A method of operating a decentralized ad-hoc wireless network including wireless stations, comprises establishing a common time reference which is used by the wireless stations to share access to a common wireless channel, the common time reference having a periodic superframe structure including a Scheduled Beacon Period, a Contended Beacon Period, Contention Periods (CPs) and Contention Free Periods (CFPs). The method further comprises time-scheduling, using wireless communication between the wireless stations, the CFPs in the SBTT interval to at least some of the wireless stations requesting access to the CFPs, and granting access to the CPs to at least some of the wireless stations requesting access to the CPs.

Abstract: A method of operating a decentralized ad-hoc wireless network including wireless stations, comprises establishing a common time reference which is used by the wireless stations to share access to a common wireless channel, the common time reference having a periodic superframe structure including a Scheduled Beacon Period, a Contended Beacon Period, Contention Periods (CPs) and Contention Free Periods (CFPs). The method further comprises time-scheduling, using wireless communication between the wireless stations, the CFPs in the SBTT interval to at least some of the wireless stations requesting access to the CFPs, and granting access to the CPs to at least some of the wireless stations requesting access to the CPs.

Abstract: A Lorentz force assisted microelectromechanical switch is provided which is configured to have a capacitive switch and an electrical conductor placed in transversely extending electric and magnetic fields to generate the Lorentz force sufficient to operate the capacitive switch.

Abstract: A Lorentz force assisted microelectromechanical switch is provided which is configured to have a capacitive switch and an electrical conductor placed in transversely extending electric and magnetic fields to generate the Lorentz force sufficient to operate the capacitive switch.

Abstract: An electronic safe and arm apparatus disposed in a projectile having a spin axis and a spin rate includes a battery; a power supply board connected to the battery, the power supply board including a mechanical G-switch that closes permanently at a predetermined acceleration, and a time-delay circuit connected to the G-switch; a firing board connected to the power supply board, the firing board including: an accelerometer that is oriented perpendicular to and disposed a fixed distance from the spin axis, an output of the accelerometer varying according to the fixed distance from the spin axis and the spin rate of the projectile; a comparator connected to the output of the accelerometer wherein the comparator compares the output of the accelerometer to a threshold voltage and an output of the comparator is low when the output of the accelerometer is less than the threshold voltage and the output of the comparator is high when the output of the accelerometer exceeds the threshold voltage; a rectifier connected t

Abstract: A system which is packaged within a projectile fuze body and obtains data relative to the projectile during a launch. Sensors are provided which obtain in-bore data as well as in-flight data. The in-bore data is recorded at a fast rate during in-bore travel of the projectile and is read out, continuously, at a slower rate during in-flight travel. Both in-bore data and in-flight data are encoded and transmitted to a ground station for analysis.

Abstract: A highly permeable medium, such as an industrial foam, is utilized within e liquid payload cavity of a spinning artillery projectile to prevent flight instabilities produced by resonant oscillations of the liquid payload prior to the time it attains the spin velocity of the projectile. The highly permeable medium is preferably positioned near an end wall of the substantially cylindrical shell casing and physically acts to create highly viscous forces for causing the liquid in contact therewith to spin up to the projectile's velocity with a speed heretofore unrealized.