Spatial Modulation Antenna Power Level Discrimination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing spatial modulation techniques in multi-antenna systems face limitations in increasing channel transmission capacity and discrimination between transmission combinations, particularly in encoding multiple binary elements using multiple antennas.
Innovation Solution
A method that involves transmitting a source signal using multiple antennas, where each antenna transmits specific binary sequences and electromagnetic profiles representative of these combinations, allowing for the simultaneous transmission of multiple binary elements by determining the number of antennas, their ranks, and their corresponding electromagnetic profiles, enhancing discrimination and channel capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spatial modulation techniques are used to increase channel capacity, then transmission capacity is improved, but discrimination between transmission combinations deteriorates
Solution Approach 1:
The patent assigns different power levels to different transmitting antennas, creating local quality differences in the transmitted signals. This allows the receiving antenna to distinguish between different transmission combinations by detecting the unique power level patterns, thereby improving discrimination while maintaining high channel capacity through spatial modulation
Solution Approach 2:
The invention changes the power level parameter of the transmitted signals from different antennas. By varying the power levels assigned to each antenna, the system creates distinct signal characteristics for each transmission combination, enabling the receiver to accurately discriminate between combinations while achieving enhanced transmission capacity
2Productivity
If multiple binary sequences are transmitted simultaneously using multiple antennas, then transmission capacity is increased, but implementation complexity increases
Solution Approach 1:
The patent performs preliminary determination of the number of transmitting antennas and their respective power levels before actual data transmission. This preliminary configuration establishes a mapping between antennas and power levels that simplifies the subsequent transmission process, allowing multiple binary sequences to be transmitted simultaneously without requiring complex real-time processing
Solution Approach 2:
The invention segments the transmission process into distinct components: determining the number of antennas, assigning power levels to each antenna, and transmitting binary sequences through specific antenna combinations. This segmentation allows each component to be handled independently, reducing overall implementation complexity while maintaining high transmission capacity
Data Source
Figure 1~2
AI summary
The invention relates to a method for transmitting, from a plurality of transmission antennas EAn, a source signal comprising a plurality of binary sequences SEQi to a reception antenna, the method implementing, prior to receiving the binary sequences SEQi of the source signal, a determination, by a receiver associated with the reception antenna RA1, of the number of emission antennas EAn, of a rank assigned to each of the n transmission antennas EA in one of the binary sequences SEQi to be communicated, and, for each of the transmission combinations of the transmission antennas EAn, an electromagnetic profile representative of the combination. In addition, the invention relates to associated transmission and reception devices.