Buffer Sizing for 802.11 Based Networks

Abstract:-
We consider the sizing of network buffers in 802.11 based networks. Wireless networks face a number of fundamental issues that do not arise in wired networks. We demonstrate that the use of fixed size buffers in 802.11 networks inevitably leads to either undesirable channel under-utilization or unnecessary high delays. We present two novel dynamic buffer sizing algorithms that achieve high throughput while maintaining low delay across a wide range of network con ....etc

[:=Read Full Message Here=:]

Abstract: In this paper, we propose an accurate method to evaluate the available bandwidth in IEEE 802.11-based ad hoc networks. We improve the method described in. We evaluate our solution on di_erent scenarios. We also provide a comparison with different QoS routing protocols, BRuIT, AAC and QoS-AODV, based on di_erent available bandwidth estimation techniques.
Presented By:
Cheikh Sarr ”Claude Chaudet ” Guillaume Chelius ” Isabelle Guérin Lassous
Introduction
The quality of service issues in ad hoc n ....etc

[:=Read Full Message Here=:]

Presented By:
Samarth H. Shah, Kai Chen, Klara Nahrstedt Department of Computer Science University of
I. INTRODUCTION
Available bandwidth estimation is a vital component of admis¬sion control for quality-of-service (QoS) in both wireline as well as wireless networks. In wireless networks, the available bandwidth undergoes fast time-scale variations due to channel fading and error from physical obstacles. These effects are not present in wireline networks, and make estimation of available bandwidth in wire ....etc

[:=Read Full Message Here=:]

Introduction

Sensors integrated into structures, machinery, and the environment, coupled with the efficient delivery of sensed information, could provide tremendous benefits to society. Potential benefits include: fewer catastrophic failures, conservation of natural resources, improved manufacturing productivity, improved emergency response, and enhanced homeland security . However, barriers to the widespread use of sensors in structures and machines remain. Bundles of lead wires and fiber optic ....etc

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

Please, can somebody help me with a detailed material or information on the above topic; Reduction of Network Density For Wireless Ad-Hoc Network ....etc

[:=Read Full Message Here=:]

BANDWIDTH ESTIMATION FOR IEEE 802.11 BASED ADHOC NETWORK-MOBILE COMPUTING

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 ev ....etc

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

we want PPT,SRS,Documentation about this topic. ....etc

[:=Read Full Message Here=:]

Network Access Control for Mobile Ad Hoc Network
Pan Wang
North Carolina State University
Outline
Background
Problem statement
Related work
Proposed scheme
Key Synchronization
Packet Retransmission
Analysis, simulation and field test
Summary
Background
Mobile Ad Hoc Network (MANET)
A MANET consists of mobile platforms (e.g., a router with multiple hosts and wireless communications devices), which are free to move about arbitrarily. -- IETF RFC2501
Characteristics of MANET
No pre-determined in ....etc

[:=Read Full Message Here=:]