Parallel structure based coordinated network system-level simulation method

A system-level simulation and cooperative network technology, which is applied in the field of multi-cell cooperative communication network system-level simulation, can solve the problems of slow simulation speed and low efficiency, and achieve the effect of increasing simulation speed, improving simulation speed and efficiency

Active Publication Date: 2014-03-12
上海瀚芯实业发展合伙企业(有限合伙)
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Problems solved by technology

The method of the present invention solves the problems of slow simulation

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  • Parallel structure based coordinated network system-level simulation method
  • Parallel structure based coordinated network system-level simulation method
  • Parallel structure based coordinated network system-level simulation method

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Embodiment Construction

[0020] A kind of collaborative network system-level simulation method based on parallel structure proposed by the present invention is described in detail below: figure 1 It is a schematic diagram of the multi-cell cooperative aggregation scheme of the present invention, which is a fixed cooperative mode. figure 2 It is a flow chart of the independent simulation process of a single computing node in the present invention, which is the inner layer of the system simulation. This embodiment is a method for parallel simulation of a collaborative network system based on a parallel structure, and its complete steps are as follows:

[0021] 1. The system-level simulation platform dynamically assigns multiple independent simulation processes of the cooperative communication system to the Matlab distributed computing server to realize parallel computing. Multiple independent computers are connected to the Internet, and a master-slave cluster environment is configured. This machine is ...

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Abstract

The invention discloses a parallel structure based coordinated network system-level simulation method. The method mainly includes the following steps that (1) a system-level simulation platform allocates multiple snapshot-simulation dynamic conditions of a coordinated communication system to a distributed computing server to realize parallel computing; (2) specific to the snapshot simulation transmission process of each stand-alone system, a fixed collaboration mode is adopted to determine collaboration sets, and parallel stand-alone simulation calculation is performed on each collaboration set; (3) in consideration of inter-cell interference probability distribution characteristics, influences on users due to small-scale interference values of neighboring cells can be averaged, so that an interference computation module long in consumed time references to an interference computation value of a previous time slot or before multiple time slots, and the users of different cells can compute current signal to interference plus noise ratios thereof through a parallel mode. The method has the advantages that by the aid of multi-layer parallel design from outside to inside, system simulation speed and efficiency can be increased to the uttermost degree, computing resources are utilized effectively, and reliability in simulation results is ensured to be unchanged.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a multi-cell cooperative communication network system-level simulation method with a parallel structure. Background technique [0002] The main problem of the current traditional network topology is that there is interference and degradation of coverage quality at the border of the cell, which leads to poor performance of the terminal at the cell handover site. In response to this problem, 3GPP proposed a multi-cell coordinated transmission (CoMP, Coordinated Multiple Point) scheme, that is, through joint processing between multiple cells, the suppression / elimination of inter-cell and intra-frequency networking interference is realized. Multi-cell cooperative transmission can be divided into two types: one is that multiple cells transmit the same user data at the same time, and convert the interference signal of other cells into the useful signal of the...

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Application Information

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IPC IPC(8): H04W24/06
Inventor 许威黄健张华
Owner 上海瀚芯实业发展合伙企业(有限合伙)
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