'Contention free period' presentation slideshows

Medium access control

Medium access control. COSC 6590. Design Challenges in WMNs. Hidden terminal problem Exposed terminal problem Control and management have to be distributed across all nodes. Multichannel networks: distributed channel selection channel assignment. Early MAC Schemes. ALOHA.

693 views • 51 slides

802.11 Wireless LANs

802.11 Wireless LANs. Abhishek Karnik, Dr. Ratan Guha University Of Central Florida. OVERVIEW . Introduction 802.11 Basics 802.11e for QoS WEP . INTRODUCTION. In 1997 the IEEE adopted IEEE Std. 802.11-1997 Defines MAC and PHY layers for LAN and wireless connectivity.

674 views • 50 slides

Medium access control

Medium access control. COSC 6590. Design Challenges in WMNs. Hidden terminal problem Exposed terminal problem Control and management have to be distributed across all nodes. Multichannel networks: distributed channel selection channel assignment. Early MAC Schemes. ALOHA.

522 views • 50 slides

489 views • 35 slides

802.11g Frame Sequence Variations ( based on 802.11g Draft 2.1 Jan-2002)

802.11g Frame Sequence Variations ( based on 802.11g Draft 2.1 Jan-2002). Terry Cole AMD Fellow terry.cole@amd.com +1 512 602 2454. Introduction. We provide many PPDU formats that can be used in 802.11gD2.1. CCK long, CCK short, OFDM, CCK-OFDM, PBCC

121 views • 12 slides

‘Shield’: Protecting High-Priority Channel Access Attempts

‘Shield’: Protecting High-Priority Channel Access Attempts. Mathilde Benveniste AT&T Labs, Research. CFS and PCFS: Definitions. Definitions

167 views • 8 slides

Midterm Question 4

148 views • 3 slides