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Multi-packet separating method in radio self-organization network

A technology of wireless self-organization and separation method, which is applied in the direction of phase modulation carrier system, etc., to improve the efficiency and throughput of information transmission, improve the effect, and save hardware resources

Inactive Publication Date: 2005-03-23
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no device for multi-package separation based on the above method at present.

Method used

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  • Multi-packet separating method in radio self-organization network
  • Multi-packet separating method in radio self-organization network
  • Multi-packet separating method in radio self-organization network

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Experimental program
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Embodiment Construction

[0019] The multi-packet separation method in the ad hoc network of the present invention is composed of two multi-phase modulation separation algorithms: multi-phase modulation and transmission of source data at the transmitting end, movement of the observation window at the receiving end, and storage of mixed data 2. Perform multiple phase separations on the mixed data in each observation window (first multi-packet separation) 3, perform energy detection and position parameter extraction on the separated window data 4, reduce the first multi-packet through the obtained position parameters In the scope of the observation window during separation, the user's data is separated again in the reduced observation window (second multi-packet separation)5.

[0020] 1 Multi-phase modulation and transmission of source data at the transmitting end

[0021] Multiple phase modulation and transmission of data packets of different sending users at the sending end: Assumption b i (k) Represents t...

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Abstract

A multipacket separation method in a wireless self organized network includes: different transmitting users carry out multiphase modulation and delivery to the data packets transmitting data at their own transmitting ends, b. If the data packets are transmite to a same users, C. then the multiphase separation method is used to separate the hybrid data in the peep window, d. If the current peep windown contains a user complete data packet information, the energy test and position parameter extraction are carried out to the processed peep windown data, e. reducing the range of first multipacket separated viewing window and parameter, again to separate the said user data at the reduced peep window then for the second multipacket of separating to obtain good separation effect.

Description

Technical field [0001] The invention relates to a multi-packet separation scheme used in a wireless self-organizing network, and belongs to the technical field of communication signal processing. Background technique [0002] Ad hoc network is a self-organizing network with no fixed facilities and dynamic changes in network topology. Similar to the multiple access protocol (MAC) in cellular networks, the traditional ad hoc network MAC protocol assumes that there is no noise in the channel or the effect of noise on the signal. The impact is small, and the channel access failure is caused by the conflict of different users; if the conflict occurs, all data packets must be retransmitted. [0003] The development of wireless multimedia communications in the future requires mobile networks to meet the characteristics of high speed and broadband, which also poses a challenge for the development of ad hoc networks as one of the fourth-generation wireless network...

Claims

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Application Information

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IPC IPC(8): H04L27/18
Inventor 郑宝玉杨震张继东
Owner NANJING UNIV OF POSTS & TELECOMM