Due to the time-varying phase in frequency diverse arrays (FDAs), traditional phase-based secure communication (SC) methods cannot be utilized. In this reported work, automatic scanning property of FDAs (time-varying property) was rederived. This allows for presetting beam time towards desired receiver (Bob). Subsequently, time-carrying design applied Low Earth Orbit (LEO) satellites. A satelli...

Satellite networks provide a wide range of coverage throughout the globe and play very important role due to their broadcasting capacity bandwidth flexibility [...]

The intent of this note is to report on work in progress on the problem of designing optimal satellite data communication channels for today’s data networks. Satellites have been used for data communications for many years. However, both changes in speeds and protocols in use now make it much harder to provide effective data communications on satellite channels. We will begin by reviewing the r...

An authentication scheme is one of the most basic and important security mechanisms for satellite communication systems because it prevents illegal access by an adversary. Lee et al. recently proposed an efficient authentication scheme for mobile satellite communication systems. However, we observed that this authentication scheme is vulnerable to a denial of service (DoS) attack and does not o...