Simultaneous, same-frequency and full-duplex user quick clustering scheduling method

A technology of same-frequency full-duplex and scheduling method, which is applied in the field of communication, can solve the problems of low number of users, no user sending and receiving strategy, starvation phenomenon, etc., and achieve the effect of small inter-cluster interference, guarantee of user fairness, and small inter-group interference

Active Publication Date: 2016-07-27
PEKING UNIV +1
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Problems solved by technology

This patent application focuses on the judgment of sending and receiving of specific users, but does not plan the sending and receiving strategies of users in the area as a whole, and it is easy to cause starvation of users with lower priority

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  • Simultaneous, same-frequency and full-duplex user quick clustering scheduling method
  • Simultaneous, same-frequency and full-duplex user quick clustering scheduling method
  • Simultaneous, same-frequency and full-duplex user quick clustering scheduling method

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The features and advantages of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] refer to figure 2 , in an embodiment of the present invention, a method for clustering and scheduling full-duplex users at the same time and at the same frequency is provided, comprising the following steps:

[0031] S110: Randomly select a certain user as the uplink cluster center, select another user as th...

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Abstract

The invention provides a simultaneous, same-frequency and full-duplex user quick clustering scheduling method. The method includes the following steps that: a user is randomly selected as an uplink cluster center, a user is selected as a downlink cluster center according to an interference condition, and the other users are allocated into two clusters according to interference conditions; the type of a cluster to which low-signal to interference and noise ratio users belong is adjusted according to estimated interference conditions, and it is ensured that the drop of the signal to interference and noise ratio of all users in an area after variation does not exceed a certain threshold value; and if new users are connected into the area, the new users are allocated into a certain cluster according to interference conditions, and a K means algorithm is utilized to select a new cluster center. According to the simultaneous, same-frequency and full-duplex user quick clustering scheduling method of the invention, a self-interference elimination means is adopted; and a user clustering strategy is adopted, the mutual interference of the users of the clusters is reduce to minimum; and simultaneous, same-frequency and duplex communication is realized, and communication efficiency of a system is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a fast clustering scheduling method for simultaneous and same-frequency full-duplex users. Background technique [0002] Today, the available spectrum resources in various countries in the world are decreasing day by day, while the demand for wireless communication traffic is increasing rapidly. This external contradiction makes improving the utilization of spectrum efficiency an important research direction for improving the development of communication technology. [0003] Traditional communication systems are generally divided into simplex systems, half-duplex systems, and full-duplex systems. Full-duplex means that communication nodes receive and transmit at the same time. Simultaneous full-duplex technology at the same frequency refers to transmitting and receiving at the same time and frequency spectrum resources. It is a new duplex technology emerging in recent years...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04J11/00
CPCH04J11/0026H04W72/121H04W72/542
Inventor 刘志敏孙婕丁家瑞马猛焦秉立汪巍崴王昕周伐
Owner PEKING UNIV
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