%T Mobility in JCSP: New Mobile Channel and Mobile Process Models %A Kevin Chalmers, Jon Kerridge, Imed Romdhani %E Alistair A. McEwan, Steve Schneider, Wilson Ifill, Peter H. Welch %B Communicating Process Architectures 2007 %X The original package developed for network mobility in JCSP, although useful, revealed some limitations in the underlying models permitting code mobility and channel migration. In this paper, we discuss these limitations, as well as describe the new models developed to overcome them. The models are based on two different approaches to mobility in other fields, mobile agents and Mobile IP, providing strong underlying constructs to build upon, permitting process and channel mobility in networked JCSP systems in a manner that is transparent to the user.