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Non-cooperative repeated game-based power scheduling method in wireless MIMO network

A power scheduling, non-cooperative technology that can be used in power management, wireless communication, diversity/multi-antenna systems, etc., and can solve problems such as low complexity

Inactive Publication Date: 2010-07-21
SOUTHEAST UNIV
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  • Claims
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Problems solved by technology

[0017] The present invention is a non-cooperative repeated game based power scheduling method in a wireless MIMO network, aiming to solve the problems of distributed implementation and low complexity of power scheduling

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  • Non-cooperative repeated game-based power scheduling method in wireless MIMO network
  • Non-cooperative repeated game-based power scheduling method in wireless MIMO network
  • Non-cooperative repeated game-based power scheduling method in wireless MIMO network

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Embodiment Construction

[0047] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0048] Such as figure 2 Shown is the flow chart of the method of the present invention.

[0049] Scenarios considered by the present invention are as figure 1 As shown, there are L point-to-point links in the wireless MIMO network, each link is subject to co-channel interference from other L-1 links, each node has N antennas, and each link will transmit the maximum Power P max Evenly distributed to N transmit antennas;

[0050] The sending signal x of the i-th link i is an N×1 complex random vector whose covariance matrix N×N matrix P i Also known as the power allocation matrix, the transmission power of the i-th link is tr{P i}≤P max，i , noise n i is an independent and identically distributed standard normal additive white Gaussian vector of N×1, and its covariance matrix I N is the identity matrix, the baseband received signal of the i-th link is: ...

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Abstract

The invention discloses a non-cooperative repeated game-based power scheduling method in a wireless MIMO network, belongs to the technical field of wireless communication, and in particular relates to power scheduling in a wireless distributed MIMO network. In the method, power scheduling of each link is modeled as a non-cooperative game capable of maximizing a utility function. A pricing mechanism taking sending power and link quality into consideration is introduced into the utility function so as to acquire Pareto improvement of network throughput. The power scheduling of all sending windows is taken as a repeated game to establish a punishing mechanism for preventing the deviation, of the link, aiming to acquire excess earnings. Simulation results show that, compared with a gradient projection algorithm, the algorithm realizes distributed scheduling of resources at lower computational complexity without obviously sacrificing total throughput.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method for distributed power scheduling (power scheduling) of a wireless multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) network, specifically a method using non-cooperative The power scheduling model of the non-cooperative repeated game theory is used to model the power scheduling of the data transmission link in the wireless MIMO network, and it is a method to solve the distributed power scheduling problem of the network. Background technique [0002] Current wireless communication networks usually appear in the form of cellular networks or wireless local area networks. These wireless communication networks and wireless communication technologies are supplements and developments to fixed wired networks, they require the support of fixed infrastructure, and generally adopt a centralized control method. However, in some special environments o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04B7/04
Inventor 徐平平周超
Owner SOUTHEAST UNIV
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