Recent advancement of wearable computing and wearable sensor devices has empowered the development of Wireless Body Area Networks (WBANs). Wireless body area network is made up of remotely connected miniaturized sensors placed in, on or around the Human Body, which provides continuous monitoring of physiological signs to support medical, lifestyle and entertainment applications. This paper offers a survey of the concept of Wireless Body Area Networks. First, we focus on some applications with special interest in patient monitoring. Then the communication in a WBAN and its positioning between the different technologies is discussed. In this research work, we propose a reliable, power efficient and high throughput routing protocol for Wireless Body Area Networks. We use multi-hop topology to achieve minimum energy consumption and longer network lifetime. We propose a cost function to select parent node or forwarder. Pro-posed cost function selects a parent node which has high residual energy and least distance to sink. Residual energy parameter balances the energy consumption among the sensor nodes while distance parameter ensures successful packet delivery to sink.
WBAN; healthcare; routing; MAC; WSN isher
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