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A Bistatic Sensing System in Space-Air-Ground Integrated Networks | IEEE Conference Publication | IEEE Xplore

A Bistatic Sensing System in Space-Air-Ground Integrated Networks


Abstract:

Sensing is anticipated to have wider extensions in communication systems with the boom of non-terrestrial networks (NTNs) during the past years. In this paper, we study a...Show More

Abstract:

Sensing is anticipated to have wider extensions in communication systems with the boom of non-terrestrial networks (NTNs) during the past years. In this paper, we study a bistatic sensing system by maximizing the signal-to-interference-plus-noise ration (SINR) from the target aircraft in the space-air-ground integrated network (SAGIN). We formulate a joint optimization problem for the transmit beamforming of lowearth orbit (LEO) satellite and the receive filtering of ground base station. To tackle this problem, we decompose the original problem into two sub-problems and use the alternating optimization to solve them iteratively. Using techniques of fractional programming and generalized Rayleigh quotient, the closed-form solution for each sub-problem is returned. Simulation results show that the proposed algorithm has good convergence performance. Moreover, the optimization of receive filtering dominates the optimality, especially when the satellite altitude becomes higher, which provides valuable network design insights.
Date of Conference: 07-09 August 2024
Date Added to IEEE Xplore: 24 September 2024
ISBN Information:
Print on Demand(PoD) ISSN: 2377-8644
Conference Location: Hangzhou, China

Funding Agency:


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