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Radio environment emulation method in cellular radio communication system

A communication system and cellular wireless technology, applied in the field of wireless environment simulation, can solve problems such as the inability to reflect the impact of multi-carrier system performance and the inability to distinguish the impact of multi-path environment.

Inactive Publication Date: 2006-07-19
XI AN JIAOTONG UNIV
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  • Description
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Problems solved by technology

[0003] However, when the existing simulation method evaluates the performance of the new generation cellular wireless communication system, the system adopts multi-carrier, ofdm (orthogonal frequency division multiplexing), dynamic adaptive subcarrier allocation, AMC ( The impact of technologies such as adaptive modulation and coding) on ​​system performance cannot be reflected, because the existing methods cannot distinguish the impact of multipath environment on the power of different subcarriers of the same signal

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  • Radio environment emulation method in cellular radio communication system
  • Radio environment emulation method in cellular radio communication system
  • Radio environment emulation method in cellular radio communication system

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:

[0046] A simulation method of a wireless environment in a cellular wireless communication system, comprising the steps of:

[0047] a) First calculate the path loss, according to the COST 231-Hata model, the path loss coefficient is:

[0048] L = 46.3 + 33.9 lo g 10 ( f MHz ) - 13 . 82 lo g 10 ( h AP m ) - a ( h AP m ) + [ 44.9 ...

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Abstract

The invention relates to a method for simulating the wireless condition of beehive wireless communication system, which comprises: first calculating the consumption factor of path; then calculating the shade decline factor; calculating the multi-path decline factor and the generalized signal / noise ratio; according to the generalized signal / noise ratio, the modulation and code method, looking up the error code list to attain the error code rate of present time slit; attaining the error frame rate of system to output the property of system. The invention can accurately display the property and character of system.

Description

technical field [0001] The invention relates to an optimal design method of a wireless communication system, in particular to a simulation method of a wireless environment in a cellular wireless communication system. Background technique [0002] : For system performance simulation at the air interface level of a wireless communication system, the purpose is to evaluate the system's ability to schedule resources such as frequency and power. The existing wireless environment simulation methods in system-level simulation are usually based on the physical layer link performance test results, using parameterized calculations instead of actual data transmission simulation methods, that is, providing a series of simulation time points, physical Some specific parameters of the current time slot of each wireless frame carried on the channel; the test system uses these parameters to perform wireless physical channel simulation calculations to obtain the received power that the receiv...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B17/391H04W24/06
Inventor 荣玫朱世华任品毅张阳
Owner XI AN JIAOTONG UNIV