A space-frequency-code three-dimensional index modulation wireless communication method

Abstract

The present invention claims to protect a wireless communication method for space-frequency-code three-dimensional index modulation, which belongs to the technical field of high-speed wireless communication. G Mod , Antenna index part G Ant , PN code index part G Code with subcarrier index part G Sub ; The steps of index modulation and symbol modulation, wherein the index modulation includes antenna index modulation, spread spectrum code index modulation and subcarrier index modulation; the step of modulation symbol spread spectrum transmission; at the receiving end, signal detection and demodulation, including activated subcarriers Detection and demodulation of carrier, active antenna, active spreading code and modulation symbols.

Description

Technical field[0001]The present invention belongs to the field of high-speed wireless communication technology, and the techniques involved include multi-input multi-output spatial modulation, code knots, subcarrier modulation modulation, and direct sequence spread spectrum communications.Background technique[0002]In recent years, as people's demand for high-speed data transmission rates and frequency band utilization is increasing, wireless communication technology is also rapid development. High-speed data transmission rates and reliable transmission quality have become the necessary premise of wireless communication development, limited spectrum resources can no longer meet the rapid growth of users, is in this context, spread spectrum modulation, orthogonal frequency division multiplexing Multi-input multi-output modulation techniques are proposed. And have been widely studied, currently these technologies have become mature in theory and practical engineering, and are widely u...

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Problems solved by technology

At present, there are not many research teams that can consult two-dimensional index modulation. The advantage of two-dimensional index modulation is that the number of information bits transmitted by teleportation is increased through two index methods, so it has more advantages in terms of energy efficiency and spectrum efficiency; The disadvantage is that the demodulation complexity at the receiving end is large, and it is difficult to obtain channel state information through precoding technology

Since there are few two-dimensional index modulations at present, there is no research on three-dimensional index modulation that combines antenna index, code index and subcarrier index.

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