A Ka Band WCDMA-based LEO Multi-satellites Mobile Medicine System

In this paper, we propose a Ka band wideband code division multiple access (WCDMA) based low earth orbit (LEO) multi-satellites mobile medicine system. An essential feature of this system is that high power, the STBC strategy, more capable error protection schemes, and low level modulation are allocated to the medical information that requires higher quality of service (QoS). In contrast, low power, DM strategy, less capable error protection schemes, and high level modulation are granted to messages that can tolerate high bit error rate (BER). Simulation results show that the proposed scheme can not only fulfill the QoS required by a medicine system, but also achieve the mission of maximum transmission bit rates or minimum transmission power. In addition, by using channel estimation in the proposed system, the Ka band rain fading effect can be mitigated well.