Results of MRMB Simulations April 2009 doc.: IEEE 802.11-09/0528r1 May 2009 Results of MRMB Simulations Date: 2009-04-16 Authors: Alex Ashley, NDS Ltd Alex Ashley, NDS Ltd

April 2009 doc.: IEEE 802.11-09/0528r1 May 2009 Abstract We have performed some MRMB experiments using our 802.11 simulator. Document 11-09-0528r0 contains the video resulting from an experiment. This presentation provides information on this video file. Alex Ashley, NDS Ltd Alex Ashley, NDS Ltd

Simulation Parameters April 2009 doc.: IEEE 802.11-09/0528r1 May 2009 Simulation Parameters Home Detached house 9m x 9m x 4.8m, 2 floors, 4 rooms per floor Outer walls: 2 layers of Brick, Plaster Inner Walls: 2 sheets drywall* Floors: Wood, Plaster 802.11 parameters 1 AP and 5 stations, randomly placed 11a mode, European regulatory channel & power rules, no TPC MRG Block Ack 11n Channel model B + DARPA building material losses Video 2 x 6Mbps video streams, streamed using multicast UDP Full simulation from MAC upwards. At PHY, signal reception is simulated, not actual waveforms. *AKA: gypsum board, wallboard, plasterboard, gib, rock lath, Sheetrock, gyproc Alex Ashley, NDS Ltd Alex Ashley, NDS Ltd

Video Results May 2009 April 2009 doc.: IEEE 802.11-09/0528r1 Normal Roughly 22 lost packets in 30 seconds. Normal MRMB Lost packets Received Packets Loss rate Stream 1 440 15151 2.9% 1 15606 0.01% Stream 2 160 15430 1.0% 15590 0% Alex Ashley, NDS Ltd Alex Ashley, NDS Ltd

Media Information Encapsulation Video Audio Windows Media May 2009 Media Information Encapsulation Windows Media 1.8 MBits/sec Video Windows Media 9 (WMV3), 720x480, 30 frames/second Audio Windows Media (WMA2), 48KHz sample rate, 128 KBits/sec Alex Ashley, NDS Ltd