Analyzing and Improving the IEEE 802.11-MAC Protocol for Wireless LANs
نویسندگان
چکیده
Wireless LANs Jost Weinmiller, Hagen Woesner, Adam Wolisz Electrical Engineering Department Technical University Berlin, Sekr. FT5 Einsteinufer 25, 10587 Berlin, Germany Abstract 1The MAC-part of the upcoming IEEE 802.11 standard for wireless LANs named DFWMAC 2 is based on a CSMA/CA-type access protocol with a rotating backo window and an optional RTS/CTS message exchange. In this paper, following a short presentation of DFWMAC we will present the results of our simulative analysis of DFWMAC focussing on analysis and improvements of the basic key mechanisms the RTS/CTS message exchange and the backo algorithm.
منابع مشابه
Connectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs
We propose the efficient reliable multicast MAC protocol based on the connectivity information among the recipients. Enhancing the BMMM (Batch Mode Multicast MAC) protocol, the reliable multicast MAC protocol significantly reduces the RAK (Request for ACK) frame transmissions in a reasonable computational time and enhances the MAC performance. By the analytical performance analysis, the through...
متن کاملTighter Throughput Lower Bounds of Connectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs
The connectivity-based reliable multicast MAC protocol was proposed for IEEE 802.11 wireless LANs and the formulae for the lower bounds of the multicast downlink throughput and the uplink throughput of the connectivitybased reliable multicast MAC protocol were derived in our previous study. We provide the tighter throughput lower bounds of the connectivity-based reliable multicast MAC protocol ...
متن کاملPerformance Analysis for a New Medium Access Control Protocol in Wireless LANs
One fundamental issue in high-speed wireless local area networks (LANs) is to develop efficient medium access control (MAC) protocols. In this paper, we focus on the performance improvement in both MAC layer and transport layer by using a novel medium access control protocol for high-speed wireless LANs deploying carrier sense multiple access/collision avoidance (CSMA/CA). We first present a re...
متن کاملA Hidden Node Aware Network Allocation Vector Management System for Multi-hop Wireless Ad hoc Networks
Many performance evaluations for IEEE 802.11distributed coordination function (DCF) have been previouslyreported in the literature. Some of them have clearly indicatedthat 802.11 MAC protocol has poor performance in multi-hopwireless ad hoc networks due to exposed and hidden nodeproblems. Although RTS/CTS transmission scheme mitigatesthese phenomena, it has not been successful in thoroughlyomit...
متن کاملA new SDN-based framework for wireless local area networks
Nowadays wireless networks are becoming important in personal and public communication andgrowing very rapidly. Similarly, Software Dened Network (SDN) is an emerging approach to over-come challenges of traditional networks. In this paper, a new SDN-based framework is proposedto ne-grained control of 802.11 Wireless LANs. This work describes the benets of programmableAcc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996