Robust Analog Beamforming for Periodic Broadcast V2V Communication

We generalize an existing low-cost analog signal processing concept that takes advantage of the periodicity vehicle-to-vehicle broadcast service to transmitter side. In particular, we propose process multiple antennas using either beamforming network (ABN) phase shifters, or antenna switching (ASN) periodically alternates between available antennas, transmit periodic messages receivers have combining (ACN) which has been proposed in earlier work. To guarantee robustness, aim minimize burst error probability for worst receiving vehicular user, a scenario bad propagation condition is modeled by single dominant path communicating vehicles. absence any form channel knowledge, analytically derive optimal parameters both ABN and ASN. The vector found be all users not only user. Further, demonstrate Alamouti scheme special case two yields similar performance At last, show derived transmission strategies are also when hybrid ACN-maximal ratio used at receiver.