Distributed Cooperative Transmission in MANETs with Multiple Timing and Carrier Frequency Offsets
Mus'ab Yüksel, Raphael T. L. Rolny, Marc Kuhn, Michael Kühn · 2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) · 2022
Cooperative transmission is a promising approach to establish robust communication in Mobile Ad-Hoc Networks (MANETs). In low-complexity MANETs several transmitters (TX) can be aggregated to a virtual multiple input system. For such a setup, the impact of various timing and carrier frequency offsets (TO, CFO) has to be mitigated. We propose an effective, purely time-domain based equalizer structure that allows to establish cooperative transmission with a transmit diversity scheme in presence of aforementioned impairments and multipath channels. Exemplarily investigating the broadcast performance by outage simulations in a MANET scenario, we can demonstrate the benefits and indicate that the proposed structure is auspicious to improve the general scalability of MANETs.