IEEE 802.11: Multiple Access Avoid collisions: 2+ nodes transmitting at same time. 802.11: CSMA - sense before transmitting.
{"Image DocumentName": "IEEE : Multiple AccessAvoid collisions: 2+ nodes transmitting at same time : CSMA - sense before transmitting.", "Image ImageDescription": "Don\u2019t collide with ongoing transmission by other node : no collision detection! Difficult to receive (sense collisions) when transmitting due to weak received signals (fading) Can\u2019t sense all collisions in any case: hidden terminal, fading. Goal: avoid collisions: CSMA/C(ollision)A(voidance) A. B. C. A\u2019s signal. strength. space. C\u2019s signal. 6: Wireless and Mobile Networks.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}