Modeling and simulation of near space platform-land channel

Near space communication has many qualities such as high spectral efficiency, small path loss and low propagation delay. It has both advantages of land wireless communication and satellite communication, which is suitable for Space broadband wireless access. Currently, the studies of near space are abundantly focused on the manufacture and flight on platform. However, the research of specific communication technology is very rare. This paper mainly studied on the communication channel from Near space platforms (NSPS) to Land. Fading and delay spread is selectively analyzed which is caused by multipath. According to WSSUS hypothesis, the stratospheric scattering channel modeled in high dynamic environment with fast fading was structured, and the propagation characteristics are compared with characteristics of satellite-Land channel. It is shown that the proof of near space platform-land (NSP-L) scattering channel model is reasonable, which makes contribution to system performance analysis of NSPS communication.