MSS physical layer for PPDR communications

Reliable communications are a fundamental means to manage in an effective manner public protection and disaster relief (PPDR) operations, especially in the first hours during the response phase. This paper investigates the expected performance of a physical layer for mobile satellite services based on the LTE specifications, properly adapted to suit the mobile satellite channel and thought to satisfy the current needs of PPDR users. In particular, the effect of the land mobile satellite (LMS) channel frequency selectivity is considered in terms of impacts on the LTE uplink PHY layer performance, as LMS greatly differs in this aspect with respect to the terrestrial mobile channel.