tailieunhanh - Analysis the mac protocol of IEEE 802.11 wireless LAN

In this Project study the main emphasis has been given to the MAC layer of the Wireless LAN IEEE MAC Protocol. Also the physical layer of the Wireless LAN IEEE MAC Protocol has been described. The implementation of the Wireless IEEE MAC Protocol is observed through a simulation. | International Journal of Computer Networks and Communications Security C VOL. 1, NO. 5, OCTOBER 2013, 201–209 Available online at: ISSN 2308-9830 N C S Analysis the MAC Protocol of IEEE Wireless LAN Md. Mizanur Rahman1, Farhana Enam2 1 Department of ICE, University of Rajshahi, Bangladesh 2 Assistant Professor, Department of ICE, University of Rajshahi, Bangladesh E-mail: 1ras5615@, 2farhana_ice2008@ ABSTRACT An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. The architecture of the IEEE WLAN is designed to support a network where most decision making is distributed to the mobile striation. The first, IEEE Standard , is an orthogonal frequency domain multiplexing (OFDM) radio in the UNII bands, delivering up to 54 Mbps data rates. The second, IEEE Standard is an extension to the DSSS PHY in the GHz band, delivering up to 11 Mbps data rates. In this Project study the main emphasis has been given to the MAC layer of the Wireless LAN IEEE MAC Protocol. Also the physical layer of the Wireless LAN IEEE MAC Protocol has been described. The implementation of the Wireless IEEE MAC Protocol is observed through a simulation. Keywords: WLAN, MAC Protocol, CSMA/CD, MAC Frame Format, . 1 INTRODUCTION Wireless networking is a fast-growing technology that allows users to access information and services electronically, regardless of their geographic position without cables, Wireless networks can be classified in two types: Infrastructured Networks and Infrastructureless Networks. Infrastructure network makes use of a high speed wired or wireless network. A mobile host communicates with a bridge in the network (called base station) within its communication radius. The mobile unit can move geographically while it is communicating. When it goes