Cross-layer method for reducing TCP repeated response under wireless local area network

A wireless local area and network technology, applied in network topology, wireless communication, network traffic/resource management, etc., can solve problems such as waste of system resources and processing time, occupation, lack of realizability, etc.

Inactive Publication Date: 2011-09-14
CHONGQING UNIV
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: First, the MAC ACK payload transmitted by the wireless terminal to the AP carries the entire TCP header information (20 bytes), which takes up more storage resources of the wireless terminal and increases the length of the payload, wasting precious channels Second, when the AP sends a TCP ACK to the sender, it is sent in the normal TCP ACK mode, and there are many redundant information in the frame, which wastes system resources

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 method for reducing TCP repeated response under wireless local area network
  • Cross-layer method for reducing TCP repeated response under wireless local area network
  • Cross-layer method for reducing TCP repeated response under wireless local area network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] This cross-layer design method is used in wireless communication networks. Its main idea is to perform appropriate protocol improvement on the wireless access point (AP), and increase the storage of the TCP protocol sent by the sending end (which can be a wired or wireless terminal) to the destination end. Header and IP header part data function. A cross-layer design is adopted between the MAC and TCP of the wireless terminal. The MAC caches the TCP sending suggestion window of the TCP header generated locally, and adds a status bit of whether the TCP ACK is replying to the reserved MAC header frame control field. According to the TCP layer Reply, set the TCPACK status bit in the MAC header frame control field and compare whether the suggestion window of the TCPACK reply and the suggestion window cached in the MAC before have changed, and set up a MAC ACK with a new TCP suggestion window load or a MAC ACK without a load to the AP. After the AP receives the data from the...

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 design method for reducing TCP repeated response under a wireless local area network. In the method, few frame formats and flow treatments only need to be rectified in the wireless local area network. A wireless access point (AP) caches the head local information of TCP/IP that is sent to a destination terminal by a sending terminal. A wireless terminal part caches a suggestion sending window of the TCP head at the MAC layer; simultaneously the sub-domain remained by the MAC head frame control domain marks whether the TCP layer carries out response and answering to the MAC layer within the specified time; and when the MAC layer is being sent, the MACACK is sent to the AP in a way of taking the slightly changed TCP suggestion window as the MAC load. After the AP receives the MAC ACK sent by the destination terminal, the TCP ACK agent destination terminal is established to carry out TCP response to the sending terminal according to the TCPACK response marking of the MAC head frame control domain and the previously cached TCP/IP head local information of the sending terminal.

Description

[0001] Technical field The method for reducing TCP repeated responses across layers in a wireless local area network belongs to the technical field of wireless communication networks Background technique [0002] Transmission Control Protocol (TCP) is an important transport layer protocol widely used on the Internet, which provides connection-oriented and reliable data flow services. It has become the de facto standard for ensuring transmission reliability on the Internet, and is used by almost all data communication applications that require reliability support. The reliability and stability of today's Internet are inseparable from the performance of the TCP protocol. [0003] With the popularity of wireless local area networks, a large amount of multimedia data is applied to wireless terminals, and among multimedia applications, TCP applications are the main ones. At present, the traditional TCP protocol is still used for reliable data transmission in wireless LANs, but tra...

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
IPC IPC(8): H04W28/06H04W84/12H04L1/16
Inventor 廖勇王丹陈徐洪程金波彭小秦王聪黄卫华
Owner CHONGQING UNIV
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