Wireless network system

Abstract

The invention discloses a wireless network system which comprises an up link and a down link which have the same set; wherein the down link comprises a signal source, an OFDM (Orthogonal Frequency Division Multiplexing) modulation module, an emitting module, a receiving module, an OFDM (Orthogonal Frequency Division Multiplexing) demodulation module and an information sink; the signal source, the OFDM modulation module and the emitting module are sequentially connected together; and the receiving module, the OFDM demodulation module and the information sink are sequentially connected together. A wireless information channel is arranged between the emitting module and the receiving module; and the wireless information channel is a communication channel which takes LED (Light Emitting Diode) illumination light waves as carrier wave signals. The wireless network system is a wireless transmission network based on the LED illumination light waves; and the receiving module or the emitting module can be made of a light emitting diode. Meanwhile, one part of the system is used as the receiving module while the other part of the system is used as the emitting module by using the same light emitting diode with reverse polarization so as to realize receiving and transmitting the information of the emitting module and the receiving module, contained in the same body. The invention has the beneficial effects of lower cost, high speed, safety and stability.

Description

technical field [0001] The invention relates to the field of communication systems, in particular to a wireless network system. Background technique [0002] The current RF-based WIFI access point is different. RF requires that the wireless network must share the spectrum among all users, which imposes strict requirements on every electronic device. It also has the following disadvantages: [0003] 1. Poor stability: As far as the network environment of my country is concerned, the RF WIFI wireless network is basically a reinforced concrete structure with complex and diverse patterns, and the environment severely attenuates the RF wireless signal, so the instability of the wireless network is unavoidable. Avoided. [0004] 2. Low speed: According to relevant data, the transmission rate of RF WIFI wireless network is relatively slow, generally 11M, 54M, 108M, and the attenuation phenomenon is still relatively serious. [0005] 3. Security: An important issue of RF WIFI wire...

AI Technical Summary

Problems solved by technology

[0003] 1. Poor stability: As far as the network environment of my country is concerned, the RF WIFI wireless network is basically a reinforced concrete structure with complex and diverse patterns, and the environment severely attenuates the RF wireless signal, so the instability of the wireless network is unavoidable. Avoided

[0004] 2. Low speed: According to relevant data, the transmission rate of RF WIFI wireless network is relatively slow, generally 11M, 54M, 108M, and the attenuation phenomenon is still relatively serious

The security of an RF wireless network can never be compared with the security of a wired network. Unless you deploy end-to-end encryption technology, the so-called truly secure communication of the wireless network cannot be guaranteed.

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