Interlocking with a heterogeneous network is important because mobile users (MUs) who navigate on next-generation (NG) wireless networks want to be provided with undisrupted network services. Unfortunately, there have been few studies on methods of guaranteeing global mobility. To enhance global mobility and interoperability within the NG network environment, in this paper, we propose a proxy-local mobility anchor (Proxy-LMA) system, a mobile IP-based global inter-networking system. The purpose of the proposed Proxy-LMA system is to expand the boundary of mobility with respect to the existing mobility management protocols (PMIPv6 and MIPv6), in order to guarantee global mobility and interoperability within a heterogeneous network environment. The results revealed that the proposed Proxy-LMA system was more efficient than the other methods in terms of the signal cost and delay in a heterogeneous network environment such as wireless sensor networks. (2016) 'Design and performance analysis of a cost-effective proxy-LMA mobility management scheme in IP-based mobile networks with global mobility support', Int. started his academic profession at the Sungkyunkwan University in 2012 as an Assistant Professor. His research interests include mobile computing, mobility management for vehicular networks, sensor networking, protocol operation-based performance analysis, internet security, MIPv6 and ubiquitous computing. This paper is a revised and expanded version of a paper titled 'Cost-effective proxy-LMA mobility management scheme in mobile networks with global mobility support' presented at the