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WLAN antenna combination method and system

An antenna combination and antenna technology, applied in the field of Internet communication, can solve the problems of occupying additional communication resources and sacrificing communication performance.

Active Publication Date: 2014-10-01
GCI SCI & TECH
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  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a genetic algorithm-based WLAN antenna combination method and system for the problem that the antenna combination method occupies additional communication resources and sacrifices communication performance in the prior art.

Method used

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  • WLAN antenna combination method and system
  • WLAN antenna combination method and system
  • WLAN antenna combination method and system

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Embodiment 1

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] see figure 1 , which is a flow chart of a WLAN antenna combination method according to the present invention. A WLAN antenna combination method, comprising steps:

[0018] S10: Assign antenna weights to the switch states of each antenna, form an antenna weight sequence according to the antenna selection, and select multiple antenna weight sequences to form a contemporary antenna weight set suitable for genetic algorithm operations;

[0019] S20: pair-cross the antenna weight sequences in the contemporary antenna weight set according to the crossover probability, and mutate each antenna weight sequence in the crossover result according to the mutation probability to obtain a mutated antenna weight set;

[0020] S30: Calculate the fitness value f of each an...

Embodiment 2

[0084] see Image 6 , which is a schematic diagram of a connection relationship between an antenna and a radio frequency stream in another embodiment of a WLAN antenna combination method according to the present invention. The general steps of this embodiment are the same as those of Embodiment 1, and the difference is that in this embodiment, radio frequency stream 1, radio frequency stream 2, and radio frequency stream 3 can establish connection relationships with antenna 1 to antenna 8 respectively. However, only one antenna can be selected for each radio frequency stream to establish a connection relationship. So there are 8.7.6 = 336 possible antenna combinations. All possibilities can be covered by 9-bit binary code. Therefore, in this embodiment, the antenna weight sequence is composed of 9 binary numbers. Since the 9-digit binary number can represent 512 possible combinations in total, which is greater than the actual number of antenna combinations that can appear, ...

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Abstract

The invention provides a WLAN antenna combination method and system. The method includes the steps that on-off states of all antennas are endowed with antenna weights respectively, antenna weight sequences are formed according to selection of the antennas, and multiple antenna weight sequences are selected to constitute a contemporary antenna weight set suitable for genetic algorithm operation; pairing, crossover and variation are carried out on the antenna weight sequences to obtain a variation antenna weight set; if a variation result does not meet the requirement, selection, crossover and variation steps continue to be conducted on the mutation result till the antenna weight sequence with an adaptive value f larger than a threshold set by the system is found. A genetic algorithm is used for searching for antenna combinations meeting communication quality requirements, each crossover and variation result adaptive value can be superior to the previous crossover and variation result adaptive value by effectively using criteria of survival of the fittest and crossover-and-variation in the genetic algorithm, the antenna combinations meeting the communication quality requirements can be found rapidly, the number of times of section of the antenna combinations is reduced, system expenses are lowered, and the communication effect is improved.

Description

【Technical field】 [0001] The invention relates to the field of Internet communication, in particular to a genetic algorithm-based WLAN antenna combination method and system. 【Background technique】 [0002] With the development of communication technology, people's demand for high-speed wireless Internet access is increasing. As a supplement of the cellular access technology, the wireless local area network technology WLAN is widely loved by people. At present, wireless local area network technology (WLAN) has been very popular. Most consumer electronic products such as smartphones and tablet computers are equipped with WLAN communication modules to support WLAN network access. Among them, multiple-antenna communication technologies such as MIMO (Multiple-Input Multiple-Output: Multiple Input Multiple Output), SDMA (Space Division Multiple Access: Space Division Multiplexing) are one of the main physical layer technologies. Multi-antenna communication uses the multipath in...

Claims

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Application Information

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IPC IPC(8): H04B7/04
Inventor 容荣
Owner GCI SCI & TECH
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