Formulas
This is the formula for period
What is T = 1/f?
This organization handles regulations for radio communications
What is the FCC?
This technology, introduced in 802.11ac, uses multiple antennas to transmit to multiple users at a time
What is MU-MIMO?
This category of attacks is primarily privacy-related and does not involve transmitting
What is passive?
This is equivalent to 2 in the linear scale
What is 3 dB?
This is the formula for wavelength
What is c/f
This organization is responsible for WiFi standardization
What is IEEE?
This WiFi standard introduced bandwidths up to 320 MHz
What is WiFi 7 (802.11be)?
These are the three main types of jamming
What are Constant, Random, and Reactive?
What is 20 bps?
This is the formula for MIMO channel modeling
What is Y = HX + N?
What is jamming?
This technology uses time-frequency divisions to allow multiple concurrent users
What is OFDMA?
This security mechanism helps defend against MitM attacks by preventing impersonation
What is mutual authentication?
This is -29 dBm converted to mW
What is 1/800?
This is the complex representation of a signal
What is Aej2πft?
These bands are unlicensed (open for public use but subject to rules regarding interference)
What are U-NII and ISM?
This is the range of frequencies used in WiFi 6 (802.11ax)
What is 1-7 GHz?
This security mechanism prevents narrow-band jamming and eavesdropping
What is FHSS?
This is the capacity of a channel with 20 MHz bandwidth and an SINR of 0 dB
What is 20 Mbps?
This is the equation for Free-Space Path Loss
What is Pt / Pr = ( 4𝜋d / 𝜆 )^2
What is the general EIRP limit on 2.4 GHz and 5-6 GHz?
What is 4W (36 dBm)?
This is a vulnerability in WEP caused by IV reuse and cryptographic design
What is IV collison?
This physical security measure involves using jamming and destructive interference to prevent eavesdropping
What is friendly jamming?
This is a possible delay (in seconds) that would result in constructive interference for a 50 Hz periodic wave?
What is 0.5s * n where n is an integer (i.e. 1s, 5s, etc.)