Spatial multiplexing TR equalizer design based on SIMO-UWB system

A space multiplexing and equalizer technology, applied in baseband systems, baseband system components, transmission systems, etc., can solve problems such as MSI and ISI deterioration performance, poor focus of received signals, and neglect of intersymbol interference

Inactive Publication Date: 2018-08-24
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Nguyen considered the potential of the UWB system using the spatial multiplexing scheme, in which the transmitter uses TR technology, and proposed an algorithm for mitigating Multistream Interference (MSI), which significantly improved the bit error rate performance of the system, but ignored Intersymbol Interference (ISI), and the research is the case of MIMO single user
However, the introduction of TR technology into the SM-MIMO-UW

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  • Spatial multiplexing TR equalizer design based on SIMO-UWB system
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  • Spatial multiplexing TR equalizer design based on SIMO-UWB system

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, and Not all examples.

[0024] The present invention is a kind of spatial multiplexing TR equalizer design based on SIMO-UWB system, such as figure 1 shown, including:

[0025] S1: The sending end transmits a detection signal, and the receiving end estimates the channel type according to the channel state;

[0026] S2: According to different channel types, establish a channel transmission model and estimate channel parameters;

[0027] S3: The receiving end feeds back the estimated channel parameters to the sending end;

[0028] S4: Design an equalizer by using the space-time focusing characteristics of time reversal...

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Abstract

The present invention relates to the technical field of wireless communications, in particular to a spatial multiplexing TR equalizer design based on a SIMO-UWB system, which comprises that a transmitting end transmits a detected signal; a receiving end estimates a channel type according to a channel state; according to different channel types, a channel transmission model is established, and channel parameters are estimated; the estimated channel parameters are fed back to the transmitting end and a time inversion mirror by the receiving end; the equalizer is designed by using the space-timefocusing characteristic of the time inversion technology; power control is carried out on the equalizer, and TR pre-filter cascade is used for the SIMO-UWB system. According to the equalizer design inthe invention, multi-code stream interference and inter-symbol interference in the SIMO-UWB system are reduced under the premise of ensuring normal communication of the system, the system complexityis reduced, and the performance of the system is greatly improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a design of a spatial multiplexing TR equalizer based on a SIMO-UWB system. Background technique [0002] With the rapid development of wireless communication technology, people have higher and higher requirements for high-speed data transmission within a short distance. The emergence of ultra-wideband (Ultra-Wide Band, UWB) technology provides a new technology for realizing ultra-wideband and ultra-high-speed data transmission within a short distance. UWB wireless communication system has a series of advantages such as high transmission rate, extremely wide bandwidth, high spectrum utilization rate, large system capacity, low transmission power, strong anti-interference performance, good confidentiality and simple system structure. However, in an extremely complex environment, problems such as multipath, scattering, reflection, and dispersion propagation in the c...

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Application Information

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IPC IPC(8): H04L25/03
CPCH04L25/03006
Inventor 不公告发明人
Owner CHONGQING UNIV OF POSTS & TELECOMM
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