Abstract—The pervasive adoption of IEEE 802.11 radios in the past decade has made possible for the easy Internet access from a vehicle, notably drive-thru Internet. Originally designed for the static indoor applications, the throughput performance of IEEE 802.11 in the outdoor vehicular environment is, however, still unclear especially when a large number of fast-moving users transmitting simultaneously. In this paper, we investigate the performance of IEEE 802.11 DCF in the highly mobile vehicular networks. We first propose a simple yet accu ....etc

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seminars report and ppt presentation on WLAN ....etc

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Abstract
IEEE 802.16 standard and WiMAX (Worldwide Interoperability of Microwave Access) will standardize and promote wireless broadband as a wireless alternative to digital subscriber line (DSL) and cable that can help remove barriers to broadband access by providing last mile connectivity. The standard reduces costs, improves security, throughput and makes the connection more exible and scalable. WiMAX operates using a base station and a subscriber station with the base station controlling access within a cell. WiMAX could als ....etc

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Z-MAC: A Hybrid MAC for Wireless Sensor Networks

Presented By:-
Subodh Kumar Gond
Roll. No. 08EC6415
M.Tech. 1st Year
Telecommunication System Engineering


Introduction

What is MAC
-Controlling access to the channel
What is Z-MAC

- A Hybrid MAC which Combine the strengths of CSMA and TDMA while offsetting their weakness.

- The main feature of Z-MAC is its adaptability to the level of contention in the network .

CSMA (Carrier Sense Multiple Access)
¢ ....etc

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i am pallavi jain.i am student pursuing btech 3rd year.i want to do a project on 802.11 mac.can u help me. ....etc

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Presented by:
Amit Agrawal


Wireless LAN Simulation- IEEE 802.11 MAC Protocol
Project Goals
• MATLAB simulation
- DCF (Distributed Coordination Function)
- No Propagation Delay
• Performance Analysis
- Number of Nodes
- Range
- Packet Size
- RTS/CTS
DCF
• DCF
- CSMA/CA is a DCF
• Salient features
- Medium sharing through CSMA/CA
- Allows one to use the medium
- Random Back off interval before retransmission
- Refinement – RTS/CTS packets
[b ....etc

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sir
i am the student of M.tech.and i am working on wireless sensor network MAC protocols.
please send me the MATLAB coding for average packet latency in T-MAC and S-MAC protocols.on my mail id...([email protected]).

Anjali Varshney ....etc

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BANDWIDTH ESTIMATION FOR IEEE 802.11 BASED ADHOC NETWORK
Abstract: Since 2005, IEEE 802.11-based networks have been able to provide a certain level of quality of service (QoS) by the means of service differentiation, due to the IEEE 802.11e amendment. However, no mechanism or method has been standardized to accurately evaluate the amount of resources remaining on a given channel. Such an evaluation would, however, be a good asset for bandwidth-constrained applications. In multihop ad hoc networks, such evaluation becomes even more difficult. C ....etc

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sir...
please send me the MATLAB code for energy consumption in S-MAC and Token BAsed MAC Protocol. on my mail id ([email protected])


Anjali Varshney ....etc

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Abstract—We implement a new software-based multihop TDMA MAC protocol (Soft-TDMAC) with microsecond synchronization using a novel system interface for development of 802.11 overlay TDMA MAC protocols (SySI-MAC). SySI-MAC provides a kernel independent message-based interface for scheduling transmissions and sending and receiving 802.11 packets. The key feature of SySI-MAC is that it provides near deterministic timers and transmission times, which allows for implementation of highly synchronized TDMA MAC protocols. Building on SySI-MAC's predic ....etc

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