Managed Wifi Air Ties 4920 Muhammad Qammar Shehzad

Managed Wifi – Air. Ties 4920 Muhammad Qammar Shehzad

What are Wifi Challenges ? › Limited range › Interference › Security is a concern › High power consumption

Problem Statement › Wifi coverage without compromising on capacity.

What should be considered › Technology overview › Simulation results › Conclusion

Air. Ties Cloud › Signal-to-noise ratio: SNR = signal power / noise power

Air. Ties Cloud

Air. Ties Cloud

802. 11 n vs 802. 11 ac

Use Case

Use Case

Use Case

Shanon Capacity › Signal-to-noise ratio: SNR = signal power / noise power

Shanon Capacity › Shannon formula: C = B. log 2 (1 + SNR)

› Bandwidth: 20 MHz Channel Capacity (Mbps) 140. 00 120. 00 100. 00 80. 00 60. 00 40. 00 20. 00 1 2 3 4 5 My-room 6 Usman-room 7 8 Student-room 9 10 11 12

Only 2 devices

Propagation models › Environments (indoor, outdoor, vehicular) › ETSI Indoor Office test environment – This environment is characterized by small cells and low transmit powers. Both base stations and users are located indoors.

Use Case 2

ETSI Indoor Office Propagation › Path loss model: › Where r is transmitter- receiver distance, n is no. of floors.

Benefits of Air. Ties 4920 › Dual band (2. 4 GHz and 5 GHz) › Mesh Nodes talks to each other › Backward Compatibility (802. 11 a/b/g) › Remote management (TR-069) › No sticky clients

Other parameters to explore • Open wifi • Interference • Weather • Outdoor to Indoor • Range versus SNR

References 1. http: //www. wirelesscommunication. nl/reference/chaptr 03/indoor. htm 2. http: //ciscorouterswitch. over-blog. com/2015/03/802 -11 ac-solution-benefitsmigration. html