Systems and Methods for Communicating by Modulating Data on Zeros

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This patent describes innovative systems and methods for digital communication known as Modulation on Zeros (MOZ). Here, instead of using traditional modulation schemes, data bits are encoded into the zeros of the z-transform of a discrete-time baseband signal. At the receiver, these zero patterns are detected and decoded, allowing information to be communicated robustly even over unknown and challenging multipath wireless channels. The approach does not require traditional pilot signals or explicit channel estimation, making it highly efficient for short, sporadic messages.

Use CasesContent extracted from patent full text and abstract with AI.

• Internet of Things (IoT) devices that frequently send short, sporadic data packets with minimal overhead.
• Wireless sensor networks in environments with unpredictable channels, such as industrial or urban deployments.
• Vehicle-to-vehicle (V2V) communication where low-latency and reliable data transfer is required.
• Massive machine-to-machine (M2M) communications, for example, in smart cities or logistics.
• Emergency alert systems operating in infrastructure-less or rapidly changing environments.
• Military or covert communications where minimal channel information and pilot overhead are beneficial.
• Short, energy-efficient packet transmissions from battery-powered, remote, or mobile devices.

BenefitsContent extracted from patent full text and abstract with AI.

• Eliminates the need for pilot signals and reduces overhead, especially important for short and sporadic transmissions.
• Robust to unknown and rapidly changing wireless channel conditions, including multipath fading and time variance.
• Increases energy efficiency and spectral efficiency, making it suitable for massive numbers of low-power devices.
• Supports blind communication without requiring prior channel knowledge at the transmitter or receiver.
• Can be implemented with fast and low-complexity decoders, making it practical for real-world hardware or embedded systems.
• Improves reliability and reduces errors versus traditional schemes (like OFDM or PPM) in short-message, high-multipath scenarios.
• Facilitates rapid initial link establishment and low-latency communication, important for IoT, V2V, and time-sensitive applications.

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Patent Abstract

Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.