Submission doc.: IEEE 802.11-15/0179r0 Indoor Wall Propagation Loss Measurements January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 1 Date: 2015-01-14.

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Submission doc.: IEEE /0179r0 Indoor Wall Propagation Loss Measurements January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 1 Date: Authors:

Submission doc.: IEEE /0179r0 Abstract It has been observed that the current Simulation Scenarios significantly understate propagation loss across walls. [1] SS#1 assumes 5dB per wall SS#2 assumes 7dB per wall SS#4a references SS#1 (Outside in penetration) This contribution presents field RF measurements from site surveys using professional grade software tools Recommend uniform loss value of 9 dB / wall in SS #1 and #2 January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 2

Submission doc.: IEEE /0179r0 Framed vs. Concrete/Block Construction Stud and Wallboard Construction (~10dB/wall) Concrete Wall Construction (25-30dB/wall)

Submission doc.: IEEE /0179r0 70,000 Seat Stadium Skyboxes January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 4 Aluminum stud + wallboard (3.3m /11ft wide)

Submission doc.: IEEE /0179r0 70,000 Seat Stadium Skyboxes (5GHz) Aluminum stud + wallboard (3.3m /11ft wide) January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 5 -57dBm-66dBm -60dBm -70dBm -58dBm -67dBm -62dBm -69dBm

Submission doc.: IEEE /0179r0 Jan 2015 Hyatt Regency Ballroom (5 GHz) January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 6 AP in front of room 47:e0:cc Ch dBm -70dBm -67dBm -77dBm Retracting partition wall

Submission doc.: IEEE /0179r0 Jan 2015 Hyatt Regency Ballroom (5 GHz) January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 7

Submission doc.: IEEE /0179r0 Jan 2015 Hyatt Regency Ballroom (5 GHz) January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 8 AP in next room 4f:df:ac Ch dBm -50dBm -69dBm -56dBm Retracting partition wall

Submission doc.: IEEE /0179r0 Jan 2015 Hyatt Regency Ballroom (2.4 GHz) January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 9 AP in front of room ce:41:58 Ch 1 -35dBm -51dBm -42dBm -52dBm Retracting partition wall

Submission doc.: IEEE /0179r0 Private NY Area University Dorm January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 10 Concrete block walls – each dorm room is 3.1m /10ft wide

Submission doc.: IEEE /0179r0 Recommendation Based on data presented, 9 dB is a more conservative value for soundproofed interior walls separating tenants. This assumes wood-frame or aluminum-frame construction with wallboard and standard insulating materials. Concrete block, plaster-over-brick, and poured concrete walls have significantly higher values (at least 25dB) There is no structural reason to use a different value for residential & enterprise scenario. Insulated bearing walls will have similar loss. If anything, residential case will have slightly higher average loss than enterprise. Exterior walls in SS#4a should be modeled using a higher value than 9 dB January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 11

Submission doc.: IEEE /0179r0 Straw Poll Do you agree that the penetration loss values in both SS#1 and SS#2 should be increased to 9 dB? Yes/No/Abstain January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 12

Submission doc.: IEEE /0179r0 References 1.14/1590r0 - Zhao, et al, “Multi-wall penetration loss model for HEW system level simulation” – Jan 2014 January, 2015 Chuck Lukaszewski, Aruba NetworksSlide 13