Design considerations for multi-radio co-existence on asynchronous processors using LAD extensions

Ultra-low power asynchronous processor designs for sensor networks have been proposed in recent research of the order of 17 pJ/ins for 0.6 V in a 180 nm CMOS process. All these processor designs are based on supporting only one simple radio software stack. The design optimization of such processors needs to be studied in the ultra-low power context for support of more complex radio stacks, and more so, for multi-radio co-existence. In this short research-in-progress paper, we study such a data-driven asynchronous processor for multi-radio support on the basis of length-adaptive data (LAD) word architecture extensions.