Power distribution scheme based on maximum effective capacity and applied to wireless multi-antenna virtual MIMO

Abstract

The invention discloses a power distribution scheme based on the maximum effective capacity and applied to a wireless multi-antenna virtual MIMO. The power distribution scheme is characterized in that for an MIMO system in a wireless network, the power control technology is applied to new users, the interference from the new users in existing users is limited to be kept at an acceptable level, and therefore the effective capacity of the existing users is guaranteed; through optimization of the guarantee of QoS in a cooperative V-MIMO, the power distribution scheme driven by the QoS of the new users is obtained; for a half-duplex / full-duplex system of the cooperative V-MIMO in the wireless network, the problem of optimization of the guarantee of QoS in the cooperative V-MIMO is established to be a strict convex optimization problem. According to the power distribution scheme based on the maximum effective capacity and applied to the wireless multi-antenna virtual MIMO, the optimal power distribution scheme supporting statistics of the QoS in the non-cooperative / cooperative V-MIMO system in the wireless network is promoted, the effective capacity of the new users can be maximized, the effective capacity of the existing users can also be guaranteed, and the power distribution scheme for the non-cooperative / cooperative V-MIMO system is evaluated through simulation.

Description

technical field [0001] The invention relates to a power allocation scheme based on maximizing effective capacity in wireless multi-antenna virtual MIMO. Background technique [0002] Over the past few decades, MIMO technology in wireless networks has been proven to achieve high spectral efficiency. Through spatial multiplexing, the throughput of MIMO systems increases linearly with the minimum values ​​of transmit and receive antennas. However, due to size and cost constraints, it is difficult for the mobile terminal to be equipped with multiple antennas. In practice, mobile users are generally equipped with one or two antennas. Therefore, although the base station can be configured with multiple antennas, the throughput of the channel between the user and the base station is still limited. The number of antennas at the user end. Without loss of generality, it is assumed that a mobile user is configured with one transmitting antenna. [0003] The problem posed earlier can ...

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Problems solved by technology

In addition, there is no deep understanding and thorough research on how to guarantee and evaluate QoS in wireless network V-MIMO in previous work

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