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Spatial multiplexing link scheduling method applied to millimeter wave WPAN

A link scheduling and spatial multiplexing technology, applied in wireless communication, electrical components, etc., can solve the problem of low efficiency of link scheduling and allocation method, and achieve the effect of maximizing system throughput and ensuring fairness

Active Publication Date: 2014-11-26
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

[0011] The present invention aims at improving the throughput of the millimeter wave WPAN system for the problem of low efficiency of the link scheduling and allocation method, and provides a spatial multiplexing link scheduling method applied to the millimeter wave WPAN network

Method used

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  • Spatial multiplexing link scheduling method applied to millimeter wave WPAN
  • Spatial multiplexing link scheduling method applied to millimeter wave WPAN
  • Spatial multiplexing link scheduling method applied to millimeter wave WPAN

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Embodiment 1

[0032] Embodiment 1. Most of the link access methods of the current millimeter wave WPAN network use TDMA access, and there are relatively few schemes for link access using the space directional transmission characteristics of the millimeter wave using the STDMA method, and there are existing millimeter wave WPAN networks Link scheduling schemes, such as ER regional scheduling, have problems such as insufficient spatial multiplexing utilization and inefficient link scheduling. This embodiment provides a spatial multiplexing link scheduling method applied to millimeter wave WPAN networks, such as figure 1 shown, including the following steps:

[0033] S1. Before the time slot allocation of the current signal transmission frame begins, a signal detection broadcast period for directional measurement interference is set, which is used to measure the mutual interference between links communicating in the current signal transmission frame;

[0034] S2. Each link records the interfer...

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Abstract

The invention discloses a spatial multiplexing link scheduling method applied to a millimeter wave WPAN. The method includes the following steps that firstly, a signal detection broadcasting period in which interference is directionally measured is set before time slot allocation of a current signal transmission frame is started; secondly, a co-channel mutual interference statistical table of links is established; thirdly, allowed link interference tolerance values of the links are calculated, and a link interference tolerance table is established; fourthly, according to the number of the links, the current signal transmission frame is divided into multiple time slots corresponding to the links one by one, each link serves as a main link in the corresponding time slot, and other links allowed simultaneous transmission to be conducted except for the main links are determined in the corresponding time slots according to the method that actual interference values among the links are compared with the interference tolerance values of the links. According to the link scheduling method, all the links can be connected in the same transmission period, fairness of the links is guaranteed to a certain degree, spatial multiplexing gains are utilized to the maximum degree, priority is given to the links which slightly interfere with the main links to enter the corresponding time slots, each time slot can contain the parallel links as many as possible, and system throughput is maximized.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a space multiplexing link scheduling method applied to a millimeter wave WPAN network. Background technique [0002] In wireless communication technology, the traditional central control network based on time division multiple access is mostly used. The central network base station or central node of this control network is the only data forwarder in the network, and only one link is allowed in one transmission time slot. Work (uplink or downlink), generally using time division multiple access (TDMA) access. [0003] Based on the millimeter wave wireless personal area network (Wireless Personal Area Network, WPAN) system adopts the hybrid network structure of central control and point-to-point direct connection of equipment, data transmission does not need to be forwarded through the central node, and the central node only undertakes the control and management of...

Claims

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Application Information

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IPC IPC(8): H04W72/12
Inventor 施威王景景张浩刘云牛秋娜
Owner QINGDAO UNIV OF SCI & TECH
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