Fast path loss prediction by using virtual source technique for urban microcells

This work proposes a new principle for fast path loss prediction and cell coverage calculations for urban microcells in a high rise building environment. The technique is based on finding a virtual source located in line of sight with the mobile station (MS). This technique maps the out-of-sight propagation prediction problem to a line-of-sight propagation prediction problem. The received power at the MS is given in a closed form expression. Based on a comparison performed with experimental results, it seems that breakpoint is valid in side-street propagation. The proposed virtual source principle opens a door for a new fast computation technique for path loss modeling in the microcellular environment