Performance Analysis of User Mobility & Packet Size in Heterogeneous Network

The fourth generation of wireless communications is expected to integrate a potentially large number of heterogeneous wireless technologies in what could be considered a huge step forward toward universal seamless access. One of the main challenges for seamless mobility is the availability of reliable horizontal and vertical handoff schemes. Heterogeneous networks provide large number of connection and data transmission path for users. Designed system focuses on vertical handoff possibility and mobility of users. Here radio access technologies (RATs) are considered as LTE, WLAN, UMTS, WiFi & WiMax. The designed system consists of vertical handoff (VHO) mechanism; plays a major role in handling seamless data transfer Vertical Handoff decision is based upon Received Signal Strength (RSS) measurements. The main goal is to reduce the processing overhead in the mobile terminal by handoff metrics for best network selection.