Abstract: Low-power, wide-area coverage for ubiquitous connectivity is the technological cornerstone supporting the vision of “everything connected”. The design of its communication systems has always faced an inherent trade-off between energy consumption and system applicability. On the one hand, traditional active communication technologies, in order to achieve high transmission performance and reliability, result in excessively high system power consumption, making them unsuitable for power-sensitive low-end devices. On the other hand, although passive communication technologies represented by backscatter can reduce power consumption to the microwatt level, their excessive simplification of critical components such as RF front-end and signal processing units severely compromises their communication performance and system adaptability, thereby limiting their practical application in real-world scenarios. This article proposes a low-power, long-range wireless bus communication system based on the “Integrated Communication-Computing” concept in wireless bus IoT edge systems. It distributes the overhead of advanced coding and modulation/demodulation technologies, which were previously unsuitable for weak terminals due to high power consumption, to powerful gateways. Unlike traditional computing offloading, communication offloading occurs during the communication process itself without adding any additional offloading costs, thereby ensuring low power consumption while enhancing system adaptability.