This paper presents a proposed model in an

explicit form and its simulation results for

characterizing wideband line-of-sight (LOS)

radio channel in an urban microcellular

environment. The model is fast to compute, easy

to implement, and only those rays that reach the

receiver locations are calculated. Effect of

street-grid, with any number of crossing streets

of different widths, on the propagation

characteristics can be studied. The model

provides details of possible radio paths that join

the basestation with the mobile terminal at any

point in the main street. The characterization of

the channel is presented in three domains. They

are: frequency, temporal and angular domains.

The model can be used to study several

microcellular communication problems.