Note, this model results in PSD(infinity) = {-130 dBc/Hz} Note, this impairment is modeled at both transmitter and receiver. IM4 Noise Input referred total noise figure from antenna to output of the Unchanged figure A/D will be {10dB}. from 802.11ac IM5 Antenna The TGn antenna configuration at both ends of the radio link Mix of shall be a uniform linear array of isotropic antennas with vertically and separation of one-half wavelength, with an antenna coupling horizontally coefficient of zero. polarized antennas or The TGac antennas can be assumed to either be all vertically dual polarized or a mix of vertical and horizontal polarizations or polarization at dual polarization at ±45 degree, as specified in the TGac ±45 degree is channel model addendum document. also considered for In TGax, an outdoor channel model is added. The outdoor TGax devices. channel models for AP to STA, STAs to AP, and STA to STA are implemented by choosing different height of antennas Added [26]. information from TGax channel model document on antennas for outdoor channel IM6 The fluoroscent light effects specifed in the TGac Channel Unchanged model shall not be considered for the simulation scenarios. from 802.11ac Light Effects UM7 Timing Uplink Multi-user simulations shall be run using a fixed Updated for timing offset selected from the array [N(1) ], 11ax ,N(2),……,N(16) where corresponds to the time offset of the client N(j) j-th transmission with respect to a common time reference and is randomly chosen from {[-TBD,TBD] ns} with a uniform distribution Comparison criteria PER vs. SNR curves all MCS’s Simulate all of channel models Simulation may include: updated PHY impairments timing acquisition on a per-packet basis
Note, this model results in PSD(infinity) = {-130 dBc/Hz} Note, this impairment is modeled at both transmitter and receiver. IM4 Noise figure Input referred total noise figure from antenna to output of the A/D will be {10dB}. Unchanged from 802.11ac IM5 Antenna The TGn antenna configuration at both ends of the radio link shall be a uniform linear array of isotropic antennas with separation of one-half wavelength, with an antenna coupling coefficient of zero. The TGac antennas can be assumed to either be all vertically polarized or a mix of vertical and horizontal polarizations or dual polarization at ±45 degree, as specified in the TGac channel model addendum document. In TGax, an outdoor channel model is added. The outdoor channel models for AP to STA, STAs to AP, and STA to STA are implemented by choosing different height of antennas [26]. Mix of vertically and horizontally polarized antennas or dual polarization at ±45 degree is also considered for TGax devices. Added information from TGax channel model document on antennas for outdoor channel IM6 Light Effects The fluoroscent light effects specifed in the TGac Channel model shall not be considered for the simulation scenarios. Unchanged from 802.11ac UM7 Timing Uplink Multi-user simulations shall be run using a fixed timing offset selected from the array [N(1) ,N(2),……,N(16) ], where N(j) corresponds to the time offset of the j-th client transmission with respect to a common time reference and is randomly chosen from {[-TBD,TBD] ns} with a uniform distribution Updated for 11ax Comparison criteria PER vs. SNR curves all MCS’s Simulate all of channel models Simulation may include: updated PHY impairments timing acquisition on a per-packet basis
11-14-0571-12-00ax-evaluation-methodology.docx