The field of modelling and simulation of communication systems has grown and matured in many ways, and the use of simulation as a day-to-day tool is in common practice. With the interest in digital mobile communications, a primary area of application of modelling and simulation is now in wireless systems of a different flavor from the "traditional" ones. This second edition represents a substantial revision of the first, partly to accommodate the new applications that have arisen. New chapters include material on modeling and simulation of nonlinear systems, with a complementary section on related measurement techniques, channel modeling and three new case studies. A consolidated set of problems is provided at the end of the book.