Rapid technological advances cause the obsolescence of communication satellite payload at the launch epoch.The software defined radio(SDR)is reconfigurable and is suitable to address technological obsolescence in sate...Rapid technological advances cause the obsolescence of communication satellite payload at the launch epoch.The software defined radio(SDR)is reconfigurable and is suitable to address technological obsolescence in satellites.However,SDRs have a finite flexibility and reconfigurability.This paper proposes the use of high-altitude platforms(HAPs)with low launch costs to reduce technology obsolescence in satellites.The SDR on the HAP can be easily upgraded and does not need radiation hardening to survive in space.The HAP is a virtual extension of an in-orbit satellite and they are jointly referred to as cloud aided satellite(CAS).This paper proposes the use of open source hardware for the CAS to lower the payload acquisition costs and the use of neuromorphic hardware instead of Von Neumann hardware in satellite communications.Results show that the incorporation of CAS and neuromorphic hardware enhances system performance,where the data transmit power,downlink channel capacity are improved by an average of up to 45.7%and 34.2%,respectively.Lastly,the use of the HAPs in the proposed CAS also reduces the forwarding latency by 14.4%on average.展开更多
文摘Rapid technological advances cause the obsolescence of communication satellite payload at the launch epoch.The software defined radio(SDR)is reconfigurable and is suitable to address technological obsolescence in satellites.However,SDRs have a finite flexibility and reconfigurability.This paper proposes the use of high-altitude platforms(HAPs)with low launch costs to reduce technology obsolescence in satellites.The SDR on the HAP can be easily upgraded and does not need radiation hardening to survive in space.The HAP is a virtual extension of an in-orbit satellite and they are jointly referred to as cloud aided satellite(CAS).This paper proposes the use of open source hardware for the CAS to lower the payload acquisition costs and the use of neuromorphic hardware instead of Von Neumann hardware in satellite communications.Results show that the incorporation of CAS and neuromorphic hardware enhances system performance,where the data transmit power,downlink channel capacity are improved by an average of up to 45.7%and 34.2%,respectively.Lastly,the use of the HAPs in the proposed CAS also reduces the forwarding latency by 14.4%on average.
