Orbital Data Centers (ODCs) surged into the spotlight after SpaceX filed for a constellation of 1 million satellites and StarCloud spoke of a 5 GW orbital data center powered by a 4×4 km solar array. Processing data in space is not new. Satellites already run GPU class compute to filter and compress data before downlink.… Read More »
Latency is a key differentiating parameter for new communication networks such as LEO satellite constellations and 5G. The interest in latency has increased as the value proposition for these networks hinges on enabling latency-dependent applications. This got some competing technology options nervous. For instance, LEO satellites provide as much as 20x round trip delay advantage… Read More »
While much attention has been focused on LTE data rates, another important parameter, latency, has gone largely unnoticed. Yet, latency is critical to enable a number of applications particularly voice services (VoLTE). I review in this post some of the publicly reported results I found on LTE latency.