$6.$ a$)$ Describe the basic architecture of a Wireless Personal Area Network $($WPAN$)$ in detail.

$(3$M$,$ BTL$-2,$ CO$2)$

b$)$ Investigate the diverse applications of Wireless Personal Area Networks in contemporary

scenarios. Provide examples of how WPANs enhance connectivity in smart homes, healthcare,

industrial automation, and other relevant domains. $(3$M$,$ BTL$-3,$ CO$2)$

c$)$ Analyze the strengths and weaknesses of common WPAN protocols like Zigbee and Bluetooth in

terms of power consumption, range, and data transfer speed. Which protocol would you

recommend for a low$-$power IoT applications, and justify.