Resource distribution and power control method of D2D communication in millimeter wave cellular network

A technology of communication resource allocation and power control, which is applied in the field of resource allocation and power control of D2D communication in millimeter-wave cellular networks. problem, to achieve the effect of increasing total throughput, reducing power consumption, and improving system throughput

Inactive Publication Date: 2018-08-10
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] The available spectrum bandwidth of millimeter wave communication is large and the transmission rate is fast, but the penetration ability is weak and it is easily blocked by obstacles

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  • Resource distribution and power control method of D2D communication in millimeter wave cellular network
  • Resource distribution and power control method of D2D communication in millimeter wave cellular network
  • Resource distribution and power control method of D2D communication in millimeter wave cellular network

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Embodiment Construction

[0032] The present invention is described in further detail now in conjunction with accompanying drawing.

[0033] The heuristic resource allocation method for millimeter wave D2D communication described in the present invention includes the following contents:

[0034] ① System model: There are a large number of cellular users UT (User Terminal) and D2D users DT (Device Terminal) in a single cell, and the number of D2D users is much larger than the number of cellular users. Such as figure 1 As shown, a D2D user pair includes transmission interruption d t and receiving terminal d r . In this system, a pair of D2D users can only multiplex the resource block RB of one cellular user CU. A cellular user can share resource blocks with multiple pairs of D2D users if the channel state allows it.

[0035] Suppose there are N cellular user sets S={s in the network 1 ,s 2 ,s 3 ,...,s N}, M D2D user pairs M={d 1 , d 2,...,d M} multiplex resource blocks with cellular users. W...

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Abstract

The invention discloses a resource distribution and power control method of D2D communication in a millimeter wave cellular network. The problem that the millimeter wave communication is weak in penetrating power and easy to be blocked by a screen is solved. The resource distribution and power control method comprises the following steps: establishing a large-scale D2D communication model in a millimeter wave network, acquiring a candidate resource multiplexing packet when the system throughput is the maximum according to a cellular user SINR condition; further judging a SINR condition and a link interference condition needing to be satisfied by a D2D user and a base station based on the candidate resource multiplexing packet, and screening the candidate resource packet to obtain an approximate optimal resource multiplexing scheme; and finally adjusting transmitting power limit interference of a D2D pair through dynamic power control. Compared with the traditional solution scheme, thescheme provided by the invention is low in complexity, the resource distribution and interference control problem in the large-scale D2D communication can be effectively solved, the power consumptionis reduced, and the system performance is further improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for combining resource allocation and power control of D2D communication in a millimeter wave cellular network. Background technique [0002] Device-to-Device (D2D) refers to direct communication between terminals. In the communication network, data transmission can be directly performed between D2D terminals without base station or relay equipment forwarding. D2D communication reduces the data pressure of the communication core network, greatly improves spectrum utilization and throughput, and opens up a new way for zero-delay communication of large-scale networks, mass access of mobile terminals and big data transmission. D2D network mainly has three communication modes, namely, cellular mode, dedicated mode, and multiplexing mode. The dedicated mode and the multiplexing mode are for direct communication between D2D terminals under the cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/04H04W52/24H04W76/14
CPCH04W52/04H04W52/243
Inventor 孟晓宇宋荣方
Owner NANJING UNIV OF POSTS & TELECOMM
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