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Channel modeling method and parameter matching method based on non-uniform scatterer distribution

A channel modeling and scatterer technology, applied in wireless communication, advanced technology, network planning, etc., can solve the problems of lack of physical interpretation of channel assumptions, non-uniform distribution of scatterer density, etc.

Inactive Publication Date: 2014-04-23
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0004] Existing research results show that the existing scatterer distribution models are suitable for outdoor Macrocell or Microcell or indoor Picrocell cell mobile environment, and no model can comprehensively and accurately and flexibly describe the propagation characteri

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Embodiment Construction

[0075] The technical solutions provided by the present invention will be described in detail below in conjunction with specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0076] The statistical channel modeling method based on non-uniform scatterer distribution provided by the present invention is based on figure 1 The improved model shown is realized: In this model, the distance between the base station BS and the mobile station MS is D, and all the scatterers are non-uniformly distributed in a circular scattering area R. In order to facilitate the simulation of the mobile communication outdoor macro cell and micro cell or indoor micro cell communication environment, it is assumed that the base station BS and the mobile station MS are located in the area where the scatterers are distributed, and all the scatterers are on the same plane as the m...

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Abstract

The invention discloses a channel modeling method and parameter matching method based on non-uniform scatterer distribution, which belongs to the technical field of wireless communication. The invention based on the improved channel model realizes and introduces two physical concepts such as a scattering probability and a effective scatterer, comprehensively describes a propagation characteristic in various specific environments accurately and flexibly, conveniently estimates a mobile communication environment of a macro cell, a microcell and the like accurately and flexibly, and effectively improves accuracy of an electromagnetic signal wave arrival angle, a wave arrival time, a Doppler effect and other channel parameter. The invention based on the established channel model, according to a channel information of receiving end, according to the channel state reasonably distributes an antenna and power resource, thereby effectively reaching the maximum vaue of the channel in the condition of no-increase channel bandwidth, and improving the resource utilization efficiency of the channel.

Description

Technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a statistical channel modeling method based on a non-uniform scatterer distribution environment. Background technique [0002] Multiple Input Multiple Output (MIMO: Multiple Input Multiple Output) technology can effectively use space and time diversity to achieve ideal link performance. Physically speaking, using the spatial non-correlation between different channels to reuse the same wireless resources will greatly improve the throughput of the system, and the channel capacity will increase linearly with the increase in the number of antennas. That is to say, using MIMO channels without increasing the bandwidth and antenna transmission power can double the wireless channel capacity. MIMO regards the multipath wireless channel and the transmission and reception as a whole for optimization, thereby achieving high communication capacity and spectrum utilizati...

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Application Information

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IPC IPC(8): H04W16/22
CPCY02D30/70
Inventor 周杰江浩
Owner NANJING UNIV OF INFORMATION SCI & TECH
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