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)
It is pop ....etc

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Energy efficiency is one of the major concerns in wireless sensor networks as the network lifetime depends on it. This article investigates the relationship between the sensor network performance, particularly its lifetime, and the number of active reporting nodes N. The analytical and simulation approaches are both used in this process. decreasing the number of reporting nodes
increases the number of reports which are to be sent to the sink if a desired information reliability about a detected event is to be achieved. If the the number of re ....etc

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Abstract The pervasive adoption of IEE 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 IEE 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 IEE 802.11 DCF in the highly mobile vehicular networks. We first propose a simple yet accurate ....etc

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Presented By:
Reena Kumari
M.Tech (ETC)
Roll No: 851015
3rd semester,2009

Introduction
Goal:
To design a efficient MAC protocol for underwater acoustic sensor network suitable for multi-hop network

Different emphasis from mid-semester surveys:
Challenges and opportunities of Physical channel of underwater communication(already discussed)
Studied different MAC protocol as introduced by different authors (already discussed)
Comparison between MAC s and their challenges (already discussed) ....etc

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Optimal State Allocation for Multicast Communications with Explicit Multicast Forwarding- IEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, VOL. 19, NO. 4, - Java

Abstract
In this paper, we propose a scalable and adaptive multicast forwarding mechanism based on Explicit Multicast (Xcast). This mechanism optimizes the allocation of forwarding states in routers and can be used to improve the scalability of traditional IP multicast and Source-Specific Multicast. Compared with previous work, our mechanism needs fewer routers in a ....etc

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Network Congestion Control Algorithm for Tree Based reliable Multicast Protocols

ABSTRACT

A Congestion Control algorithm for Tree Based reliable Multicast Protocols is a collection of nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. Multicasting is to send single copy of a packet to all of those of clients that requested it, and not to send multiple copies of a packet over the same portion of the network, nor to send packets to ....etc

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Congestion Control Algorithm for Tree-based Reliable Multicast Protocols

Abstract:
This project contains a detailed description of the congestion control algorithm of tree-based reliable multicast protocol. This algorithm takes advantage of regular acknowledgements from the receivers that propagate back to the sender via the repair tree. This scalable feedback mechanism is used to collect receiver credits. Complementing the windowing mechanism, packet transmission is smoothed by using a data rate commensurate with the window size. A ....etc

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Performance Evaluation of Efficient and Reliable Routing Protocols for Fixed-Power Sensor Networks

ABSTRACT
A Fixed power wireless sensor networks are cost effective and prevalent, and they are facing lots of problems like RF interference, node failure from environmental noise and energy constraints. A routing protocol for Fixed power wireless sensor networks must overcome these problems. Because it have to achieve reliability, energy efficiency and scalability in message delivery. In this paper, we propose an efficient and ....etc

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Hai,
pls, pls Can you mail me the project Acknowledgment- Based Broadcast Protocol for Reliable and Efficient .
It ws intersting topic i found.
it will be useful for my project.
Thank you.
Email:[email protected] ....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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