Integrated NAV-COM Systems: Assisted Code Acquisition and Interference Mitigation

In this paper, the problem of code acquisition for Global Navigation Satellite Systems (GNSS) is investigated
\nin the presence of interference. A low-complexity interference mitigation technique is proposed to combat the effect
\nof interference, which offers the potential for improved performance especially when high power jammers affect the
\nreception. For practical implementation, an integrated navigation-communication network architecture is proposed,
\ncomposed by an assistance network to aid code synchronization and an interference management system, augmenting
\nthe GNSS local component to enhance the system Quality of Service. Accordingly, an overall assistance network
\nis proposed to estimate the interference characteristics and broadcast them to conventional terminals along with a
\nrough time and frequency reference to improve code acquisition performance. Analytical and simulated results are
\nprovided, in the presence of Binary Offset Carrier (BOC) modulation, showing the clear potential of assistance GNSS
\nto significantly improve performance and reduce terminal complexity at the same time.