Retrospective Analysis of Wireless Body Area Network

Wireless Body Area Networks (WBANs) plays a key role in monitoring patient-health in order to gain a remarkable interest among the researchers. A WBAN consists of devices which are both small and fixed in the human body or kept as a device which can be easily carried by a person externally. The patient health can be observed and monitored consistently. It can also send the report on the status of patient health to the doctor and care taker. This paper discuss about energy efficiency in WBAN. Later report on various protocols proposed by several authors is compared in terms of its limitations, advantages and disadvantages. Finally the issues that can be encountered while implementing a protocol for WBAN are analyzed.