Wireless body area network is abbreviated as WBAN. This kind has been originated after the getting of wireless sensor network developing to a certain kind of being matured. That has been likely owing to the huge advance directing to usable wireless comfortable scientific knowledge as well as electronic componential parts that can be tiny. definitely, such research has obtained important attention nowadays owing to its practical uses which mainly can be in the direction of the sector of health care. Nowadays, a small sensor can be put on the body of humans for recording different mental parameters and this sensor is able to send collected information towards another device in order to get more important behaviours taken. Thus, that is utilized to diagnose illnesses as well as improving dangerous problems alert systems in health field. In this paper, various wireless body area network protocols and algorithms are viewed to optimize QoS in WBAN to improve network lifetime. Such as energy-efficient, duty cycle, power consumption, end to end delay using optimization algorithms.
