Micro-network transmission optimization method and device based on outage probability
A technology for network transmission and transmission optimization, applied in transmission systems, radio transmission systems, space transmit diversity, etc., can solve problems such as the inability to obtain the exact value of the main network channel information for interference suppression, and the complexity of transmission optimization problems.
Inactive Publication Date: 2017-08-11
TSINGHUA UNIV +1
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Problems solved by technology
[0005] Considering that there is no active assistance relationship between the main network and the micro network, the micro network cannot obtain the exact value of the main network channel information required in interference suppression, and can only obtain the probability distribution of the relevant channel information
When considering the outage probability in the case of multiple input and multiple output, the transmission optimization problem becomes very complicated, and there is no existing work on this kind of problem
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[0077] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0078] figure 1 It shows the communication model of the multi-input multi-output micro-network of the present invention, such as figure 1 As shown, in the communication model of the MIMO micro-network of the present invention, the micro-network base station F-BS transmits data to the micro-network user equipment FUE through multi-antenna transmis...
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The invention provides a micro network transmission optimization method and device based on the outage probability. The method comprises the steps of obtaining channel information of a micro network and channel information of a main network when the multi-input and multi-output micro network and the main network use the same frequency band in a frequency spectrum sharing mode, wherein the channel information of the main network comprises main network channel probability distribution and a main network communication outage probability threshold value epsilon m; according to the channel information of the micro network and the channel information of the main network, constructing a transmission optimization constraint condition for ensuring the communication performance of the main network; according to the transmission optimization constraint condition, calculating a multi-antenna transmission beam forming matrix of the micro network; according to the beam forming matrix, optimizing data transmission within the main network communication outage probability threshold value range. According to the micro network transmission optimization method, the optimal transmission parameter of the micro network can be effectively solved, and meanwhile it is effectively ensured that the main network communication outage probability is within the designated threshold value range.
Description
technical field [0001] The invention relates to the field of wireless communication, relates to the design of a multi-input multi-output micro-network transmission strategy, in particular to a micro-network transmission optimization method and device based on interruption probability. Background technique [0002] Small Cell transmission technology is an effective solution to the problem of increasing indoor wireless data services and increasing shortage of spectrum transmission resources. Micro-networks are generally freely installed and configured by end users. They can access the existing frequency bands of the main network (Macro Cell), and share spectrum with the main network to achieve the purpose of fully utilizing wireless spectrum resources. Since the micro-network has the attribute of free installation by end users, the main network cannot effectively monitor the micro-network within its own coverage in real time, that is, the main network will not actively assist ...
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IPC IPC(8): H04B7/0456H04B7/0408H04B7/08
CPCH04B7/0452H04B7/0465H04B7/086
Inventor 高飞飞栾天祥李朝峰
Owner TSINGHUA UNIV