Allocation method of joint resources of d2d communication system based on cellular network

A technology of cellular network and communication system, applied in wireless communication, sustainable communication technology, advanced technology, etc.

Active Publication Date: 2018-08-31
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the available data, there is still no precedent for joint resource allocation and guaranteed QoS requirements in cellular network-based D2D communication systems.

Method used

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  • Allocation method of joint resources of d2d communication system based on cellular network
  • Allocation method of joint resources of d2d communication system based on cellular network
  • Allocation method of joint resources of d2d communication system based on cellular network

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Embodiment

[0052] Examples of the present invention figure 1 As shown, a joint resource allocation method of a D2D communication system based on a cellular network is implemented by a D2D communication system based on a cellular network: the system includes two parts: a cellular system and a D2D system, and the cellular system includes a base station BS and C cellular users ; The D2D system includes L pairs of D2D users, the first pair of D2D users includes a D2D transmitter TXl and a D2D receiver RXl, where l∈{1,2,...,L}, assume that the cellular network-based D2D communication system has a total C resource blocks, each cellular user occupies a corresponding resource block, and each resource block is reused by a pair of D2D users at most, let the symbol y l,c ∈{0,1} represents the resource block reuse factor, that is, when the D2D user pair l reuses the cth resource block, y l,c = 1; when the D2D user does not reuse the cth resource block for l, y l,c = 0; then where c ∈ ∧ represent...

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Abstract

A method for allocating joint resources of a D2D communication system based on a cellular network belongs to the technical field of wireless communication. In a D2D communication system based on a cellular network, a D2D user can reuse resource blocks of a cellular user (CU) to implement direct communication without going through a base station. This resource allocation method not only jointly optimizes the power allocation and resource block allocation of D2D users and cellular users under the condition of limiting interference to achieve high energy efficiency, but also considers the QoS requirements of cellular users and balances the QoS requirements of cellular users With the ever-increasing D2D system and rate, it fills the gap in the cellular network-based D2D communication system for resource allocation under interference-limited conditions and guaranteed QoS requirements.

Description

technical field [0001] The invention relates to a method for allocating joint resources of a D2D communication system based on a cellular network, and belongs to the technical field of wireless communication. Background technique [0002] At the 2007 World Wireless Communication Conference, the bandwidth allocated for mobile communication systems was less than 600MHz. At the same time, the bandwidth allocation below 5GHz is already very crowded. It is estimated that by 2020, the bandwidth demand for wireless communications will be between 1200MHz and 1700MHz. Bandwidth resources can no longer meet the needs of wireless communication development. To reduce the discrepancy between bandwidth supply and bandwidth demand, it becomes important to utilize the allocated bandwidth more efficiently. [0003] At the same time, a lot of work is driving the evolution of next-generation wireless communication systems, such as LTE-A and WiMAX. The future wireless cellular network will ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/06
CPCH04W72/0453H04W72/563Y02D30/70
Inventor 马丕明李孟琪马艳波
Owner SHANDONG UNIV
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