We pointed Kepler's high-gain antennae at Earth and downlinked the data that has been on its solid state recorder for the past 3 months.
In [6], a utility-based power control in CDMA downlink for voice and data applications has been proposed.
The work presented in this paper has been limited to downlink data transmission; RRM schemes for uplink in conjunction with downlink would be one avenue for future work.
Mission team-members gathered to assess the latest imagery downlinked from Rosetta, which has been closely tracking 67P now since early August.
Everything from the size of the company's satellite, its optics system, power sources, and orbit, to its downlink technology has been designed to provide a more thorough picture of the earth from space, the company claims.
A multi-layer parallel architecture has been devised to handle the data flow and select valid triggers, reducing it to a rate compatible with downlink constraints.
A joint subcarrier and power allocation algorithm which is inspired from primal decomposition techniques has been proposed for maximizing the weighted sum-rate in multiuser OFDMA downlink systems.
To maximize the total downlink volume from the spacecraft, the CCSDS File Delivery Protocol CFDPP) has been baselined for the RBSP mission.
It has been shown in [8] that scheduling users one-by-one can result in higher system throughput for high data rate traffic in the CDMA downlink.
Some of this data was downlinked during the flight, and some came from an onboard recorder that was recovered during the debris search.
