What influences the wireless AP with a lot of machine?

The wireless AP's capacity has always been an important topic of concern, and sometimes it is a key factor in determining purchase behavior. Different brands and different types of wireless APs have different capacity, so what determines their belt capacity?

It is often said that wireless APs can take up to 10-20 people at most. If too many users access, the users under the entire AP will have poor Internet access, and often there will be frequent access restrictions.

The hardware of a device often has a great correlation with the number of accessors. So, is it possible for wireless device manufacturers to directly use the hardware of the heap to achieve high-capacity? Actually, it is not.

In the enterprise-class wireless AP market, the hardware of the equipment is basically the same, and the hardware is no longer the bottleneck with the capacity. So what restricts the wireless AP's capacity to more than 30?

In order to achieve high-capacity wireless APs, the configured hardware is only the basis, and more importantly, the software optimization capability. Like our Shenzhen Tianbo wireless AP, we have made advanced technologies such as intelligent radio frequency, time fair algorithm and network optimization. . The following summarizes some of the factors that specifically affect the wireless AP band capacity.

Software factors:

1, intelligent radio

The wireless network adopts a half-duplex transmission mode. When one user transmits data, the wireless channel is occupied, and other users cannot transmit data. When the number of wireless APs is increased, the wireless data transmission collides. The greater the probability, the higher the channel utilization becomes when the number of accesses to the wireless AP reaches an order of magnitude. Without an effective management mechanism, the entire wireless network becomes almost unusable. The intelligent radio and fair calling algorithm enables even more users to access the wireless AP, so that each access terminal can use the same channel time to transmit data, ensure fair scheduling among multiple users, and combine various technologies. Guarantee the fair distribution of the bandwidth of each access terminal, and take the capacity to a new height.

2, network optimization

In the entire wireless network, in addition to the normal data packets generated by the access terminal, there are also some useless "garbage" messages, which will occupy wireless bandwidth, resulting in a decrease in the actual throughput of the wireless AP and a decrease in the available wireless bandwidth. The number of effective accesses to wireless APs has dropped. Only deep optimization for wireless network transmission characteristics, such as ARP broadcast packet to unicast packet, prohibiting DHCP request packet from being sent to wireless terminal, intelligent broadcast speed increase, etc., using advanced controller optimization mechanism, can effectively reduce garbage packets and let wireless The network is purer and comprehensively improves the actual throughput of wireless APs.

Hardware factors:

1, CPU processing power

In order to control the manufacturing cost of the device, the inexpensive wireless AP often uses a CPU processor with poor processing capability, which directly causes the processing power of the central CPU to not handle the data forwarding of the access user. Therefore, the amount of cheap wireless AP will generally be biased. low.

2, memory FLASH

A wireless AP is like a simple and compact computer. When a user generates data, it will occupy the memory of the wireless AP. If the memory is too small, the amount of data processed will naturally be small.

3, antenna transceiver capability

With the development of wireless technology, from 802.11a/b, to the current mainstream 802.11n, and now to the new 802.11ac, the wireless transmission bandwidth is getting higher and higher. If the wireless AP uses high-performance, stable components, including CPU, memory FLASH, RF, antenna, filter, etc., then the performance is naturally excellent.

It is worth noting that the actual number of belts should be determined according to the actual site conditions. The wireless APs have different capacity in different application scenarios. For example, enterprises, government wireless office environment, recommended with a capacity of 30-40; primary and secondary e-book environment, recommended with a capacity of 50-60; ordinary Internet environment, recommended with a capacity of 60-100.

Tianbo Wireless AP Application Diagram: