This book provides readers with a state-of-the-art description of
techniques to be used for ultra-low-power (ULP) and ultra-low-cost
(ULC), short-range wireless receivers. Readers will learn what is
required to deploy these receivers in short-range wireless sensor
networks, which are proliferating widely to serve the internet of things
(IoT) for "smart cities." The authors address key challenges involved
with the technology and the typical tradeoffs between ULP and ULC. Three
design examples with advanced circuit techniques are described in order
to address these trade-offs, which special focus on cost minimization.
These three techniques enable respectively, cascading of radio frequency
(RF) and baseband (BB) circuits under an ultra-low-voltage (ULV) supply,
cascading of RF and BB circuits in current domain for current reuse and
a novel function-reuse receiver architecture, suitable for ULV and
multi-band ULP applications such as the sub-GHz ZigBee.