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5G mobile communication resource allocation method based on NOMA

A mobile communication and resource allocation technology, applied in the field of mobile communication, can solve problems such as D2D communication interference

Active Publication Date: 2020-01-10
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, D2D communication will introduce additional interference to traditional cellular wireless communication systems, and the same D2D communication itself will also face interference from traditional cellular wireless communication systems

Method used

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  • 5G mobile communication resource allocation method based on NOMA
  • 5G mobile communication resource allocation method based on NOMA
  • 5G mobile communication resource allocation method based on NOMA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0103] like Figure 4 As shown, the present invention discloses the following steps:

[0104] Step 1, channel state information collection. The sending end Tx in the D2D group collects the channel state information h between it and the receiving ends Rx1 and Rx2 i , i=1, 2, and channel state information g with the base station BS.

[0105]Step 2, comparing channel power gains to determine strong and weak users. If the channel power gain |h 1 | 2 >|h 2 | 2 (|·| means modulo operation), Rx1 is a strong user, Rx2 is a weak user; if |h 1 | 2 2 | 2 , Rx2 is a strong user, and Rx1 is a weak user.

[0106] Step 3, compare the transmission power with the effective interference power limit, and determine the magnitude relationship. Compare P T with P th / |g| 2 size, where P T is the maximum transmit power limit of the sender Tx, P th / |g| 2 is the effective interference power limit, P th is the maximum interference power value that the base station BS can accept.

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Abstract

The invention provides a 5G mobile communication resource allocation method based on NOMA, which comprises the following steps: step 1, setting a 5G mobile communication scene, and collecting channelstate information; step 2, comparing the channel power gains, determining a strong user and a weak user, and calculating to obtain the optimal sending power of the strong user and the optimal sendingpower of the weak user; 3, comparing the sending power with the effective interference power limit, and determining a size relationship; step 4, carrying out scene classification based on the comparison result of the step 2 and the step 3; step 5, performing power distribution based on a scene classification result; and step 6, outputting sending power.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a NOMA-based 5G mobile communication resource allocation method. Background technique [0002] D2D (Device-to-Device) communication enables adjacent communication devices to communicate directly without infrastructure support, thereby reducing the load on base stations and core networks. NOMA (Non-Orthogonal Multiple Access, non-orthogonal multiple access) technology allows multiple users to share the same time-frequency communication resources through power domain multiplexing and SIC (Successive Interference Cancellation, serial interference cancellation), thereby improving system Throughput and energy efficiency. [0003] Combining D2D communication with NOMA can greatly improve the service quality of future wireless communication systems. However, D2D communication will introduce additional interference to the traditional cellular wireless communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/70H04W24/08H04W72/04H04W72/08H04W72/54
CPCH04W4/70H04W24/08H04W72/0473H04W72/542Y02D30/70
Inventor 倪青袁钦
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD