This book will be useful for those who want to know and work on the topic Wireless LAN especially with energy consumption. The work is composed of the basics of WLAN and proposed three algorithms for efficiency analysis of energy consumption in IEEE 802.11 standards wireless LAN.
The primary aim of this work is to enhance the energy conservation. This can be achieved by reducing the spending of energy in the network, i.e. in the considered WLAN. One algorithm is proposed in this study which is based on energy for the different needs of the network. In the proposed study, the movements of the wireless nodes yield in old routing-paths, due to the lack of route accumulation updating. For that, a new cross layer framework is implemented along with the proposed algorithm to improve route supply performance in AODV. Using simulation, the results found for the proposed algorithm and the results show that it achieves better performance than the existing methods.
Table of Contents
1. Chapter-1: What is WLAN? Components of WLAN
2. Chapter-2: Need based Energy Algorithm and its working efficiency
3. Chapter-3: Energy Efficiency in IEEE 802.11 Standard WLAN through MWTDP
4. Chapter-4 Energy Efficiency in IEEE 802.11 standard WLAN through MWTPP
5. Chapter-5: Energy Efficiency in IEEE 802.11 standard WLAN through MWTPP and comparing its performance with CLP, NBEP and MWDTP
Objectives and Research Scope
This work primary aims to enhance energy conservation in IEEE 802.11 Wireless Local Area Networks (WLAN) by introducing optimized routing algorithms and cross-layer frameworks that minimize unnecessary energy expenditure during packet transmission and polling processes.
- Reduction of energy consumption through NBE (Need Based Energy) algorithms.
- Improvement of route supply performance in AODV protocols using cross-layer frameworks.
- Optimization of polling mechanisms in Distributed Coordination Function (DCF) and Point Coordination Function (PCF) environments.
- Comparative performance analysis of MWTDP and MWTPP against existing standard methods.
Excerpt from the Book
Energy MODEL
In the energy computation, a simple energy model is used where every node or station initializes with an initial energy and while transmitting any packet from one node to another it consumes one unit of energy. To organize the entire work four module are used.
2.1 BBCM (Basic-Service-Set, Basic-Service-Area Creation Module): This module creates the BSS and BSA. The module takes two parameters data rate and number of nodes.
2.2 AOM (Address Organization Module): This module takes address of each node and specifies the source and destination for sending and receiving data. Message is sent to each node randomly.
2.3 LPM (Log-Preparing-Module): This module takes location information of the network and prepares a log-table along with the necessary information its weights. Then it selects the next hop on the basis of its energy consumption. It does by calculating the average distance of all the neighbouring nodes and checks their energy level. Finally it selects all such nodes which are active and having maximum energy with less than or equal to the average distance among its entire neighbours.
2.4 HDMGM (Hop Destination Map Generator Module): This module forwards the packets to other nodes and generates the next hop destination map which is the result of the routing algorithm we used and forwards the received packets to the selected nodes. This gives the entire information to each nodes about its own as well as all the possible neighbouring nodes along with their energy level. This information updates after each transmission. Finally the module gives the output nodes in the network.
Summary of Chapters
Chapter-1: What is WLAN? Components of WLAN: This chapter defines the fundamental infrastructure of IEEE 802.11 standard networks and lists the core hardware components required for their operation.
Chapter-2: Need based Energy Algorithm and its working efficiency: This chapter introduces the NBE-Algorithm aimed at enhancing energy conservation and details the four-module architecture used for network performance analysis.
Chapter-3: Energy Efficiency in IEEE 802.11 Standard WLAN through MWTDP: This chapter proposes a modification to the DCF protocol to allow for multi-way transmissions, thereby reducing energy consumption during polling cycles.
Chapter-4 Energy Efficiency in IEEE 802.11 standard WLAN through MWTPP: This chapter extends the energy efficiency modifications to the PCF protocol, implementing a low-complexity multi-way transmission mechanism for pollable stations.
Chapter-5: Energy Efficiency in IEEE 802.11 standard WLAN through MWTPP and comparing its performance with CLP, NBEP and MWDTP: This final chapter provides a comparative performance evaluation of the proposed models against established protocols like CLP and NBEP across various QoS metrics.
Keywords
WLAN, IEEE 802.11, Energy Conservation, NBE, MWTDP, MWTPP, DCF, PCF, Packet Delivery Ratio, E2E Delay, Network Simulation, QoS, Routing Protocol, Energy Consumption, Cross-layer Framework
Frequently Asked Questions
What is the primary focus of this research?
The research focuses on increasing the energy efficiency of IEEE 802.11 Wireless LANs by modifying standard transmission protocols and routing algorithms to reduce power consumption in mobile nodes.
What are the central themes discussed in the text?
The central themes include energy conservation in network infrastructures, optimization of DCF and PCF polling mechanisms, and the performance analysis of cross-layer routing frameworks.
What is the main research objective?
The primary objective is to develop and validate energy-efficient algorithms (NBE, MWTDP, MWTPP) that outperform existing standard polling and routing methods in terms of energy expenditure and data throughput.
Which scientific methodology is employed?
The study utilizes a simulation-based methodology, specifically employing network simulation tools to compare the performance of proposed algorithms against traditional systems using QoS metrics like E2E delay and packet delivery ratio.
What does the main body of the work cover?
The main body covers the theoretical definition of WLAN components, the proposal of specific energy-saving modules and algorithms, and detailed comparative analyses supported by graphical data.
Which keywords best characterize this work?
The work is best characterized by terms such as IEEE 802.11, energy conservation, MWTDP, MWTPP, NBE, and WLAN performance optimization.
How does the MWTDP protocol improve network performance?
MWTDP improves performance by modifying the DCF function to allow for multi-way polling, which enables active and non-active stations to save energy by efficiently managing the transmission of data and ACK packets.
What role does the 'Log-Preparing-Module' (LPM) play?
The LPM is responsible for gathering network location data to build a weighted log-table, which facilitates the selection of the most energy-efficient next hop for packet routing.
How do 'fill bits' contribute to the proposed modifications?
Fill bits are used to match the size of uplink packets to downlink packets, allowing for a precise estimation of CFP (Contention Free Period) duration and enabling nodes to enter doze mode more effectively.
What is the significance of the comparative analysis in Chapter 5?
The analysis in Chapter 5 is significant because it provides empirical evidence that the MWTPP protocol offers consistent and superior performance across multiple performance metrics when compared to legacy systems like CLP and earlier versions of the NBEP model.
- Citar trabajo
- Dr. Anupam Das (Autor), 2020, Three algorithms for efficiency analysis of energy consumption in IEEE 802.11 Standard Wireless LAN (WLAN), Múnich, GRIN Verlag, https://www.grin.com/document/536250
