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System and method for assisting generalized spatial modulation based on dual-mode index

A generalized spatial modulation and indexing technology, applied in transmission systems, space transmit diversity, radio transmission systems, etc., to achieve the effects of improving system performance, improving spectral efficiency, and large signal-to-noise ratio gain

Pending Publication Date: 2021-10-01
河北省高速公路延崇管理中心 +1
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Problems solved by technology

The SM system uses the antenna index to implicitly transmit information, but if the system wants to achieve the same spectral efficiency as the MIMO system, the number of transmitting antennas will be much larger than that of the MIMO system

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  • System and method for assisting generalized spatial modulation based on dual-mode index
  • System and method for assisting generalized spatial modulation based on dual-mode index
  • System and method for assisting generalized spatial modulation based on dual-mode index

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Embodiment Construction

[0045] The present invention provides a dual-mode-by-auxore to assist a generalized spatial modulation system, which divides all transmit antennas into two groups using index bits, and the symbols transmitted by the two sets of index sequences use the symbols sent by the resolved constellation modulation mode. Make modulation, in the case of transmission rate, the system uses a more sparse dual mode constellation mode, so the symbols transmitted by all transmit antennas can be successfully detected using the ML detection algorithm in the receiving end so that the performance of the system is improved.

[0046] See figure 1 The input M bits of the M bits are first divided into two parts, respectively correspond to the index bit m, respectively. 1 And constellation stype M 2 Among them, index bits M 1 Will be sent to the index selector, divide all of the launch antennas into i by using the index selector A And i B Antenna subset. I A Subset antennas are constructed in a mode, I B Th...

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Abstract

The invention discloses a system and a method for assisting generalized spatial modulation based on dual-mode indexes. The system comprises a transmitting end module, a channel module and a receiving end module, the transmitting end module, the channel module and the receiving end module are connected in sequence; the transmitting end module is used for transmitting the information bits of each time slot through constellation modulated information; the channel module is used for transmitting the information of the transmitting end through the wireless channel module; and the receiving end module is used for carrying out information recovery on the information received from the wireless channel through a detection algorithm. By activating all transmitting antennas and using a constellation modulation scheme of different power modes, the performance loss of the system is reduced as much as possible on the premise of improving the spectrum efficiency of the system. Compared with a generalized spatial modulation system under the same spectrum efficiency, the system has larger signal-to-noise ratio gain. Compared with an MIMO system under the same spectrum efficiency, the system can also obtain better performance.

Description

Technical field [0001] The present invention belongs to the field of antenna airspace resource modulation technology, and in particular, the present invention relates to a two-mode lead to assist in a wide range of spatial modulation systems and modulation methods. Background technique [0002] With the development of mobile communication technology, the 5G era is coming soon, a large-scale multi-input multi-output (MIMO) technology is one of the key technologies of 5G mobile cellular network, which is set to the sender The root antenna, without increasing the premise of system bandwidth and transmit power, using null domain resources to effectively improve system capacity. However, in a 5G system using large-scale MIMO technology, the channel interference between the upper 100 antennas of the same base station, the antenna synchronization, multi-radio frequency and other issues will restrict transmission performance. In order to reduce the number of interference and reducing the...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04B7/06
CPCH04B7/0413H04B7/0639Y02D30/70
Inventor 张志刚王相相吴建波郭胜飞刘志忠冯兴乐
Owner 河北省高速公路延崇管理中心
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