Wireless backhaul speed and client throughput

[Lawrence Chia Chao Xian]

Hi,

Anybody has any theoretical formula to calculate wireless backhaul speed and client throughput for the below setup?

RootAP ------ 5Ghz backhaul --- 1st hop AP ---- 5Ghz backhaul ---- 2nd hop AP ----- (2.4Ghz or 5Ghz association) --- client

Regards,

Lawrence

[Scott Fella · Accepted solution]

Here is a note

•Number of backhaul hops is limited to eight, but three to four is recommended

The number of hops is recommended to be limited to three-four primarily to maintain sufficient backhaul throughput, because each mesh AP uses the same radio for transmission and reception of backhaul traffic. This means that throughput is approximately halved over every hop. For example, the maximum throughput for an 18 Mbps is approximately 10 Mbps for the first hop, 5 Mbps for the second hop, and 2.5 Mbps for the third hop.

Thanks,

Scott

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[Saravanan Lakshmanan · Accepted solution]

The number of backhaul hops is limited to eight, but three to four is recommended The number of hops is recommended to be limited to three to four primarily to maintain sufficient backhaul throughput, because each mesh AP uses the same radio for transmission and reception of backhaul traffic, which means that throughput is approximately halved over every hop. For example, the maximum throughput for 24 Mbps is approximately 14 Mbps for the first hop, 9 Mbps for the second hop, and 4 Mbps for the third hop.