Carrier wave coordination communication method based on four-item weight score Fourier conversion and distributed transmitting antenna

A fractional Fourier transform and transmitting antenna technology, applied in the field of carrier cooperative communication integrating single carrier and multi-carrier technology, can solve problems such as matching, carrier system and channel selection, poor system performance, etc., and achieve the effect of excellent system performance

Inactive Publication Date: 2010-02-17
HARBIN INST OF TECH
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Problems solved by technology

[0009] The present invention aims to solve the problem that the existing single-carrier and multi-carrier systems are affected by Doppler frequency shift and multipath, and cannot dynamically select the carrier system and

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  • Carrier wave coordination communication method based on four-item weight score Fourier conversion and distributed transmitting antenna
  • Carrier wave coordination communication method based on four-item weight score Fourier conversion and distributed transmitting antenna
  • Carrier wave coordination communication method based on four-item weight score Fourier conversion and distributed transmitting antenna

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specific Embodiment approach 1

[0030] Specific implementation mode one: see figure 1 , Figure 5 , Figure 7 , Figure 8 and Figure 9 Describe this specific embodiment, based on the four-item weighted fractional Fourier transform and the carrier cooperative communication method of the distributed transmitting antenna, it is realized based on the following system: the system is composed of a transmitting part and a receiving part, and the transmitting part includes a No. Information modulation and synthesis module 1, No. 2 information modulation and synthesis module 2, modulation strategy formulation module 3, No. 1 transmission processing module 4, No. 2 transmission processing module 5, No. 1 antenna 6 and No. 2 antenna 7, the modulation strategy The first and second modulation strategy formulation signal output terminals of the formulation module 3 are respectively connected to the modulation strategy formulation signal input terminal of the No. 1 information modulation and synthesis module 1 and the ...

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Abstract

The invention provides a carrier wave coordination communication method based on four-item weight score Fourier conversion and distributed transmitting antennae, relating to the field of communication. The carrier wave coordination communication method solves the problem of poor system performance because the prior system which adopts single carrier waves and multiple carrier waves is influenced by Doppler frequency shift and multiple diameters and is unable to dynamically select a carrier wave system which is matched with a channel according to a channel state. An information sequence to be transmitted respectively outputs two groups of parameters according to a modulation strategy constitution module to carry out orthogonal transformation treatment, carries out pulse molding, filtering as well as intermediate frequency and radio frequency modulation after being synthesized and then is transmitted; a receiver is used for receiving and synthesizing two groups of signals, and filteringand lower frequency conversion treatment are carried out on the signals by a receiving and treating module, and inverse transformation treatment is carried out according to transformation parameters to be output after an output information sequence is obtained. The invention is suitable for a wireless communication system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a carrier cooperative communication method integrating single carrier and multi-carrier technologies. Background technique [0002] In recent years, OFDM technology has received extensive attention and research because of its natural advantages in anti-ISI performance and simple frequency domain equalizer design. As WiMAX (802.16), which uses OFDM as one of the basic technologies of the physical layer, is accepted as the fourth 3G international standard after WCDMA, CDMA2000 and TD-SCDMA, OFDM as a typical representative of multi-carrier is not only the darling of 4G , multi-carrier seems to replace the traditional single carrier, and become the basic carrier system in the wireless communication system. On the other hand, the shortage of OFDM in terms of peak-to-average power ratio and synchronization has become a bottleneck restricting its wide application, so quite a lo...

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Application Information

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IPC IPC(8): H04L27/26
Inventor 沙学军梅林宁晓燕吴宣利迟永钢张乃通
Owner HARBIN INST OF TECH
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