Polar codes for cooperative unmanned aerial vehicle communication networks

In order to improve the performance of cooperative unmanned aerial vehicle (UAV) networks under the condition of a UAV can only carry one single antenna in the complex wireless environment, a novel case is decode-and-forward relaying method for 4 UAVs based on the distributed space-time block code (DSTBC). It can achieve 3 times diversity gains in quasi-static Rayleigh fading channel. Moreover, to obtain a better BER performance, polar codes are used in the UAV networks. The Polar-UAV networks can be equivalent to a single transmission channel for each polar code bit. By comparing the various BER simulation results, it can be concluded that polar codes can tremendously improve the coding gain and guarantee high reliable fly control in the proposed cases.