Joint Session Admission Control Scheme in IntegratedWLAN and 3G Networks

Abstract—As heterogeneous wireless networks are deployed and
users need more flexible mobility services, there has been a lot
of research work about interworking mechanism between widely
deployed 3G network and rapidly boarded WLAN (wireless local
area network). On the other side, TD-SCDMA (time divisionsynchronous
code division multiple access), which combines all
the advantage of the TDD (time-division deplex) with CDMA
(code-division multiple access), is one of the three main standards
of third-generation mobile radio system, and is newly commercialized
in China. It is expected to provide enough mobility and
higher data rate. So the study of the integration between WLAN
and TD-SCDMA will be attractive. In this paper, we propose an
efficient joint session admission control scheme that maximize
overall network revenue with Qos (quality of service) constraints
over both the WLAN and the TD-SCDMA cellular networks.
Simulation results illustrate that the overall network revenue
earned in the proposed scheme is significant larger than that
when the individual networks are optimized independently.