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Three-symbol space modulation transmission method for high mobility wireless communication system

A wireless communication system and high mobility technology, applied in the field of spatial modulation transmission, can solve the problems of receiver computational complexity and the difficulty of balancing the average bit error probability, so as to ensure the average bit error probability, reduce the computational complexity, and improve the maximum Effect of data transfer rate

Active Publication Date: 2021-08-17
NIUPT RES ACAD OF COMM & NETWORKING IND +1
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Problems solved by technology

[0004] Purpose of the invention: the technical problem to be solved by the present invention is to provide a three-symbol space modulation transmission method for high-mobility wireless communication systems, which solves the problems of maximum data transmission rate, receiver computational complexity, and average bit error probability in the current technology. Insufficient balance, aiming at the communication requirements in a high mobility environment, achieve a good performance compromise between the maximum data transmission rate, receiver computational complexity, and average bit error probability

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  • Three-symbol space modulation transmission method for high mobility wireless communication system
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  • Three-symbol space modulation transmission method for high mobility wireless communication system

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Embodiment Construction

[0034] The present invention proposes a three-symbol space modulation method, referred to as TSM, and the specific implementation process is as follows figure 1 As shown, it specifically includes the following steps:

[0035] In the first step, the information bits initialize the packet. Under the condition of given system parameters, the information bits input into the transmitter are divided according to given requirements.

[0036] The present invention considers the following given system model parameters, the base station (BS) transmitter (TX) is equipped with an antenna quantity of M t , the receiver (RX) of wireless mobile communication has M r antennas, that is, a M antenna is formed between the transmitter and the receiver r × M t MIMO transmission system. When the transmitter of the base station transmits a modulated constellation signal for information transmission, the modulation order of the symbol is set to M p , the information transmission rate of the sys...

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Abstract

The invention discloses a three-symbol space modulation transmission method for a high-mobility wireless communication system, comprising the following steps: 1) calculating the information transmission rate and Double-symbol information transmission rate, according to the above two information transmission rates, the input information bits are divided; 2) The divided single-symbol information bits are mapped by SM technology, and the double-symbol information bits are mapped by DSM technology to construct the transmitted signal vector space , transmit through the radio frequency link of the transmitting end; 3) The receiving end receives the transmitted signal, determines the symbol index parameter and the antenna index parameter through the maximum likelihood detection algorithm, and restores the original transmitted signal. Aiming at the communication requirements in the high mobility environment, the present invention achieves a good performance compromise between the maximum data transmission rate, the computational complexity of the receiver and the average bit error probability.

Description

technical field [0001] The present invention relates to a space modulation transmission method, in particular to a three-symbol space modulation transmission method for high mobility wireless communication systems. Background technique [0002] Spatial modulation (SM) technology can carry additional information through antenna index (AI) without increasing bandwidth and transmission power, and only uses a single antenna for transmission, so it can reduce the number of radio frequency (RF) chains and reduce the number of transmitters and receivers. Complexity, and effectively avoid inter-channel interference (ICI) at the receiver, it is a brand-new physical layer MIMO technology. In 2016, Turkish scholars proposed a newer SM technology - Dual Spatial Modulation (DSM) technology, which provides twice the maximum data rate compared with traditional SM. The DSM signal vector is superimposed by two SM signal vectors, and the DSM system transmits two modulation symbols simultaneo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06
CPCH04L1/0003H04L1/0054H04L1/0625H04L1/0631
Inventor 徐友云王武同王小明
Owner NIUPT RES ACAD OF COMM & NETWORKING IND
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