Description:This volume constitutes the refereed proceedings of the International Workshop on Mobile and Wireless Communications Networks, MWCN 2000, held as part of the IFIP-TC6/European Union NETWORKING 2000 Conference in Paris, France, in May 2000.The revised full papers presented were carefully reviewed and selected for inclusion in the volume. The book is divided in sections on indoor wireless networking, multiple access techniques for wireless ad-hoc networking, telephony over packet switched networks, IP networks versus conventional switched networks, mobility management and access techniques, and mobility support in IP.