Interworking of WLAN-LTE for next generation wireless networks

LTE (Long Term Evolution) is becoming the fastest growing mobile communications technology ever. IEEE 802.11 and IEEE 802.15 standards is also developing on the other side. IEEE 802.11 standards (WLAN-Wireless Local area Network) provides higher data rates and less coverage. In the next generation networks, it is very important to increase the coverage area and efficiency of WLAN standards. Hence WLAN network coverage can be increased by adopting LTE network as a backhaul network to provide seamless convergence. In this paper interworking of WLAN with an LTE network with the help of Session Initiation Protocol (SIP) is proposed to achieve better QoS. Here QoS Performance metrics of Integrated WLAN-LTE architecture such as data bytes sent, data bytes received, average delay and network throughput are analyzed.