Cross-layer resource allocation method for broadband power line communication with mixed service urgency priority

A broadband power line and hybrid service technology, applied in wireless communication, electrical components, multi-frequency code system, etc., can solve problems such as insufficient attention to fairness, lower overall system performance, increased delay and queue length, etc.

Inactive Publication Date: 2016-08-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this scheduling algorithm pays insufficient attention to fairness
Moreover, the delay and queue length of some users will increase rapidly, reducing the overall performance of the system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cross-layer resource allocation method for broadband power line communication with mixed service urgency priority
  • Cross-layer resource allocation method for broadband power line communication with mixed service urgency priority
  • Cross-layer resource allocation method for broadband power line communication with mixed service urgency priority

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0064] This embodiment is implemented in a typical power line channel environment. The parameters are set as follows: In the power line OFDM system, the number of subcarriers in one OFDM symbol is N=128, the bandwidth range is 0-20MHz, the upper limit of the system power spectrum is -50-0.8f (dBm / Hz), and the maximum The number of assignable bits is 8. Consider the case of 4 users, where user 1 and user 2 are real-time service users, and their bit error rate is set to 10 -4 , while user 3 and user 4 are non-real-time service users, and their bit error rate is set to 10 -6 . And the QoS required rates of the four users are [60, 60, 40, 32] kbps respectively. It should be noted that the above parameters do not affec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a cross-layer resource allocation method of broadband power line communication in the technical field of low-voltage broadband power line communication in which mixed service urgency is prioritized. Including: determining the urgency of users under the mixed service and the fair utility value of the user; dividing the scheduling priority of the user according to the urgency of the user under the mixed service, and then determining the scheduling order of the user according to the scheduling priority of the user and the fair utility value of the user ; Calculate the user's expected QoS rate at the MAC layer; determine the number of user packets sent by the physical layer according to the total number of packets that can be carried by the physical layer subcarrier and the user's expected QoS rate; the physical layer performs resource allocation according to the number of user packets determined by the MAC layer . The invention judges the user scheduling priority and adjusts the scheduling rate through the information exchanged between layers, and can improve the user fairness performance under the condition of ensuring the system throughput performance.

Description

technical field [0001] The invention belongs to the technical field of low-voltage broadband power line communication, and in particular relates to a method for allocating cross-layer resources of broadband power line communication with mixed business urgency priority. Background technique [0002] Broadband Power Line Communication (BPLC) technology is a high-speed data communication technology using power lines as the medium, and has become one of the main technologies for solving user access networks. However, the unique environment of the power line channel brings new technical difficulties to high-speed and reliable data transmission. Orthogonal Frequency Division Multiplexing (OFDM) modulation technology has many advantages, and its basic unit is an OFDM symbol (frame), which can realize effective broadband communication by constructing a BPLC-OFDM system. [0003] BPLC resource allocation is a process of continuously allocating resources in one or several OFDM symbol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/10H04L27/26
Inventor 陆俊龚钢军孙毅祁兵徐志强段瑞超陈红
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap