High Speed Data Transmission in Wireless Body Area Network by Reducing the Handoff Delay

The technology of sensor and intelligent information processing is widely used in Body Sensor Network (BSN), which is a branch of wireless sensor networks (WSNs). BSN are playing an increasingly important responsibility in the fields of medical treatment, social welfare and sports which are changing the way of human use computers. This research proposed an energy-efficient Medium Access Control (MAC) protocol is specifically designed for Wireless Body Area Network (WBAN). Proposed system uses the Fast Data Transmission Handoff Scheme (FDTHS), So that it significantly reduces the hand-off delay and energy-level. When the sensors change the point of attachment, there is a delay time before obtaining the internet protocol configuration. To reduce the handoff delay, a new format of control messages for carrying many other identifiers in one message is proposed, so as to decrease the numbers of control messages and shorten the handoff delay. The fast data transmission handoff scheme, which adopts the new formatted control messages, is proposed. The proposed handoff scheme contains three phases, namely the registration, up-link handoff, and down-link handoff phases. Simulation results have shown that the proposed protocol can reduce the signaling cost and handoff latency for mobile sensors based on packet loss ratio metric and it can also prove that the scheme decrease the overhead of Mobile Access Gateway (MAG).