A hybrid channel prediction algorithm with backhaul delay in uplink coordinated MIMO systems

Coordinated multi-point transmission can provide high spectral efficiency for cellular systems. However, along with the increment in the amount of data, backhaul gradually becomes the bottleneck in terms of system performance and cost. In this paper, the backhaul delay is mainly focused in coordinated cellular networks and a hybrid channel prediction (HCP) algorithm is proposed. This algorithm combines the advantages of linear autocorrelation and Markov decision process, so that can obtain more accurate channel information within a relatively short number of iterations. As a result, it can reduce the impact of backhaul delay on the performance of the system. Simulation results show that the proposed design has significant gain comparing with the performance that backhaul delay problem is not taken into account.