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Directional antenna sector switching sequence generation method suitable for neighbor discovery

A technology of directional antenna and switching sequence, which is applied in the field of communication and can solve the problem of unbalanced direction of directional antenna transmission and reception gain, etc.

Active Publication Date: 2019-07-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the directional unbalanced characteristics of the directional antenna's transmit and receive gains also bring a lot of challenges to the neighbor discovery technology of wireless ad hoc networks.

Method used

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  • Directional antenna sector switching sequence generation method suitable for neighbor discovery
  • Directional antenna sector switching sequence generation method suitable for neighbor discovery
  • Directional antenna sector switching sequence generation method suitable for neighbor discovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] In this example, the object is a directional antenna network node whose binary sequence number is 01 and sector number N=3 in the wireless ad hoc network, and a sector switching sequence is generated for it through the following steps:

[0024] Step 1. Mark the N=3 switchable sectors of the network node as 0, 1, and 2 respectively.

[0025] Step 2. Added after the n=2 binary sequence number 01 of the network node bits 0 and bits 1, thus generating a 2n=4-bit binary sequence 0101.

[0026] Step 3. Replace each bit 0 in the 4-bit binary sequence generated in step 2 with an N that is concatenated by N=3 3-element integer sequences {0,1,2} 2 =9-element integer sequence R, that is, R={0,1,2,0,1,2,0,1,2}, and each bit 1 in the sequence is replaced by a sequence of three 3-element integers S 0 ={0,1,2},S 1 ={1,2,0} and S 2 = N formed by concatenation of {2,0,1} 2 =9-element integer sequence S, ie S={0,1,2,1,2,0,2,0,1}.

[0027] Step 4. Concatenate the 2n=4 9-element ...

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Abstract

The invention belongs to the technical field of communication, and particularly relates to a directional antenna sector switching sequence generation method suitable for neighbor discovery. The methodprovided by the invention mainly comprises the following steps: for a network node with n-bit binary sequence coding, firstly performing adding to generate a 2n-bit binary sequence, and then replacing the added binary sequence to generate a switching sequence. The sector switching sequence generation method designed by the invention has a smaller MTTR value and better sector switching performance, so that the directional antenna alignment function of any two network nodes can be realized within a shorter time length.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a neighbor node discovery technology in a wireless self-organizing network networking process, in particular to a directional antenna sector switching sequence generation method suitable for neighbor discovery. Background technique [0002] Different from wireless networks with fixed infrastructure (such as base stations and wireless access points) such as cellular wireless communication networks and wireless local area networks, wireless ad hoc networks can realize mutual communication between network nodes without any fixed infrastructure. , so it is especially suitable for applications such as battlefield communication, emergency rescue, Internet of Things and Internet of Vehicles. Since the network topology of wireless ad hoc networks usually changes dynamically, each network node needs to perform the function of neighbor node discovery regularly or irregularly in the sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W36/00H04W84/18
CPCH04W24/02H04W36/0011H04W84/18
Inventor 谭雪松周子望
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA