Generalized spatial modulation system and implementation method thereof

A technology of generalized spatial modulation and implementation method, which is applied in the field of wireless communication, can solve problems such as limited capacity of activatable antennas, and achieve the effects of strong scalability, low complexity, and strong versatility

Inactive Publication Date: 2020-07-03
PEKING UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing generalized spatial modulation system performs antenna selection, each antenna has only two states: active and inactive. The activated antennas send the same signal, and the number of activatable antennas still limits the capacity of transmitting information through antenna selection.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Generalized spatial modulation system and implementation method thereof
  • Generalized spatial modulation system and implementation method thereof
  • Generalized spatial modulation system and implementation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0028] like figure 1 As shown, the generalized spatial modulation system of this embodiment includes a transmitter and a receiver, wherein the transmitter includes a serial-to-parallel conversion unit, a mode selection unit, a symbol modulation unit, N multipliers, N up-converters, and N transmitting The antenna and the serial-to-parallel conversion unit are respectively connected to the mode selection unit and the symbol modulation unit, and a mapping table is preset in the mode selection unit, and the mapping table is K transmission modes of N antennas, and the mode selection unit and the symbol modulation unit are connected to N Multipliers, each multiplier is connected to an up-converter, and each up-converter is connected to a transmitting antenna; the receiver includes a receiving antenna, a channel estimation unit and a demodulator ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a generalized spatial modulation system and an implementation method thereof. According to the invention, the user information flow is divided into two parts; wherein one partis used for mode selection, the other part is used for symbol modulation to obtain a symbol, a transmitting mode is selected in a mapping table in the mode selection, the transmitting mode is the weight of each antenna, the weight can be 0 or 1, and can also be a complex number or a decimal number, the complex number or the decimal number is multiplied by the symbol and then subjected to vector up-conversion, and then the signal is transmitted from N antennas; receiving by a receiver, performing channel estimation to obtain equivalent channel parameters so as to obtain a transmitting mode of atransmitter, and demodulating to obtain a user information flow; the number of the activated antennas is variable, and a plurality of transmitting modes can be constructed by adjusting the symbol weight on each antenna; meanwhile, the method has high universality, and demodulation of received signals can be realized by using a receiver of a general generalized spatial modulation system. The method is low in complexity, and ensures that the receiver can obtain complete channel state information.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a generalized space modulation system and its realization method. Background technique [0002] Spatial Modulation (Spatial Modulation, SM) is a new type of multi-antenna transmission technology. It uses the activation state of the antenna as a new means of digital modulation. The index information of the activated antenna becomes an additional data carrying method, which is a very promising type. Wireless physical layer transmission technology. Spatial modulation combines Multiple-Input Multiple-Output (MIMO) and digital modulation technology. The index of each transmitting antenna represents a space constellation point, and only one transmitting antenna is in the working state in the same time slot. Data is transmitted, and the rest of the antennas are silent. This activation of only a single transmit antenna eliminates inter-channel interference and the need...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B7/06H04B7/08
CPCH04B7/0413H04B7/0697H04B7/0891
Inventor 马猛魏来王忠龙焦秉立
Owner PEKING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap