Publications

We have built a research prototype of UMTS access point called a UMTS IP router (UIP). This network element combines the hierarchy of GGSN, SGSN, RNC and NodeB in a single base station.

We have built the access point version of a UMTS network called a Base Station Router (BSR). This network element combines the hierarchy of GGSN, SGSN, RNC and NodeB in a single base station.

In this paper we address seamless roaming for SIP-based services across current cellular telecommunications networks and emerging all-IP wireless networks, such as those using 3G and WiFi networks.

Session-based IP applications, such as Internet telephony, are an important component of the emerging mobile Internet.

In this paper, we provide a comprehensive review of the handover process in heterogeneous networks (HetNets), and identify technical challenges in mobility management.

The 5G vision is to create a network that outperforms the current mobile networks in terms of flexibility, performance and use cases.

The 5G vision is to create a network that outperforms the current mobile networks in terms of flexibility, performance and use cases.

In this paper we consider Mobility Management (MM) in beyond 3-G environments, with a focus on wireless access networks, motivated by current trend towards integration of WiFi, GPRS, and UMTS metwo

This paper describes current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP), wireless asynchronous transfer mode

It is now widely recognized that using IP as the foundation for next-generation mobile networks makes strong economic and technical sense, since it takes advantage of the ubiquitous installed IP in