18491558. Systems and Methods for Communicating by Modulating Data on Zeros in the Presence of Channel Impairments simplified abstract (The Regents of the University of California)
Systems and Methods for Communicating by Modulating Data on Zeros in the Presence of Channel Impairments
Organization Name
The Regents of the University of California
Inventor(s)
Philipp Walk of Pasadena CA (US)
Babak Hassibi of San Marino CA (US)
Hamid Jafarkhani of Irvine CA (US)
Systems and Methods for Communicating by Modulating Data on Zeros in the Presence of Channel Impairments - A simplified explanation of the abstract
This abstract first appeared for US patent application 18491558 titled 'Systems and Methods for Communicating by Modulating Data on Zeros in the Presence of Channel Impairments
Simplified Explanation: The patent application describes communication systems utilizing modulation on zeros to address carrier frequency offsets that can cause unknown rotations in received signals. A binary MOCZ scheme is proposed to encode modulated binary data using cycling register codes, allowing receivers to correct cyclic shifts caused by CFO.
- Modulation on zeros used in communication systems
- Binary MOCZ scheme encodes modulated binary data with cycling register codes
- Corrects cyclic shifts in received signals caused by carrier frequency offsets
- Enables receivers to decode information bits accurately
- Utilizes a cycling register code for decoding information bits
Key Features and Innovation:
- Utilization of modulation on zeros in communication systems
- Introduction of a binary MOCZ scheme for encoding modulated binary data
- Correction of cyclic shifts in received signals due to carrier frequency offsets
- Decoding of information bits using a cycling register code
- Improved accuracy in decoding information bits from received signals
Potential Applications: The technology can be applied in wireless communication systems, satellite communication, and digital broadcasting.
Problems Solved: The technology addresses the issue of unknown rotations in received signals caused by carrier frequency offsets, ensuring accurate decoding of information bits.
Benefits:
- Improved accuracy in decoding information bits
- Enhanced reliability in communication systems
- Efficient correction of cyclic shifts in received signals
Commercial Applications: The technology can be utilized in telecommunications equipment, satellite communication systems, and digital broadcasting devices, enhancing the performance and reliability of communication networks.
Prior Art: Prior research in the field of communication systems and modulation techniques can provide insights into similar approaches to addressing carrier frequency offsets and unknown rotations in received signals.
Frequently Updated Research: Researchers are continuously exploring new modulation techniques and signal processing algorithms to improve the efficiency and reliability of communication systems, which may impact the development of similar technologies in the future.
Questions about Communication Systems with Modulation on Zeros: 1. How does the binary MOCZ scheme improve the accuracy of decoding information bits in communication systems? 2. What are the potential challenges in implementing cycling register codes for correcting cyclic shifts in received signals?
Original Abstract Submitted
Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.