LAUSR

In this paper, to the best of our knowledge, we propose a comprehensive combination communication regime for the first time, which uses the spatial position combination of different physical entities, rather than the change of physical parameters, to represent the information. The maximum information capacity formula for combination communication is present in this paper. Furthermore, several innovative combination communication modes, such as partial combination communication (PCC), inverse combination communication (ICC), and generalized combination communication (GCC), are presented and mathematically analyzed. The results show that the proposed combination communication modes, especially GCC, can effectively enhance the flexibility and transmission efficiency of the communication system, compared to existing spatial modulation schemes. In addition, the computational complexity and BER performance are discussed. Finally, a demonstration application shows that combination communication can address certain specific dilemmas in the traditional Shannon-Nyquist communication regime, such as reducing channel crosstalk in the wavelength division multiplexing (WDM) system while achieving channel capacity beyond the expected level. ICC demonstrates its advantages in maintaining a simple hardware implementation while achieving a high capacity.