Recent advances in the internet and connectivity have confident the society and definition of at variance IEEE 802.11 chain of standards, one as IEEE802.11a, b, g, n, and ac. Each of the standards is equipped by all of capabilities and features that suit the type of applications the human is directed for. This paper provides a comparative study on these standards from the aspects of introduction, evolution, implementation, engaged conditions, and forever and a day of the IEEE 802.11a, b, g, n, and ac standards. This study besides provide a subject of benefits and limitations of these standards.
Table of Contents
1. INTRODUCTION
2. Details of IEEE 802.11 Various Standards
2.1 IEEE802.11a
2.2 IEEE802.11b
2.3 IEEE 802.11g
2.4 IEEE 802.11n
2.5 IEEE 802.11ac
2.5.1 Features of IEEE 802.11ac
3. Wireless Product in the market
4. CONCLUSIONS
Research Objectives and Themes
The primary objective of this paper is to conduct a comprehensive comparative analysis of various IEEE 802.11 WLAN standards, specifically evaluating their evolution, technical specifications, and performance characteristics to determine their suitability for different networking applications.
- Comparative technical analysis of IEEE 802.11a, b, g, n, and ac standards.
- Evaluation of modulation schemes and antenna technologies such as MIMO and Beamforming.
- Examination of throughput capabilities, frequency bands, and range limitations.
- Assessment of backwards compatibility and deployment challenges across different generations.
Excerpt from the Book
(5) IEEE 802.11n is an modification to the IEEE 802.11 common and proposes enhancements for larger for greater throughput making use of MIMO-OFDM. IEEE802.11n brings many new facts to deliver the efficiency good points. It uses the more than one-input more than one- output (MIMO) technology that makes it possible for spatial variety and spatial multiplexing for respectively growing the range and information transmission cost. In addition, 802.11n permits use of wider 40 MHz channels to double the bandwidth as compared to the legacy 20 MHz operation. The extension channel (40 MHz) can be used if the existing site visitors load on an IEEE802.11n network can't be carried within the 20MHz channel. 802.11n uses body aggregation and block acknowledgements for making improvements to the throughput effectively. [3] The max bodily layer bit fee workable in IEEE 802.11n is 300Mbits/s/channel utilizing 2 spatial streams on a 40MHz channel. Spatial range is performed by using utilizing multiple antennas. The specification allows up to 4 spatial knowledge streams which will implement area Time Block Code (STBC) schemes as IEEE 802.11n makes use of a extra efficient OFDM modulation. This more than doubles the information expense for802.11n when compared to 20 MHz channels. When This permits 802.11n to give a sixty five Mbps information cost slices the channel into 52 subcarriers (48 of that are operating inside a traditional 20 MHz channel, OFDM applies OFDM on a forty MHz channel, the quantity of information-carrying subcarriers raises to 114 subcarriers used for carrying information).
Summary of Chapters
1. INTRODUCTION: Provides an overview of wireless broadband advancements and the historical release of the IEEE 802.11 standard since 1997.
2. Details of IEEE 802.11 Various Standards: Breaks down the technical specifications, evolution, and modulation schemes of the 802.11a, b, g, n, and ac standard variants.
3. Wireless Product in the market: Presents a comparative matrix of the standards, highlighting their spectral usage, transmission types, and major performance advantages and disadvantages.
4. CONCLUSIONS: Summarizes the technological progress of 802.11ac in achieving gigabit speeds and the efficiency gains provided by MU-MIMO technology.
Keywords
IEEE 802.11, WLAN, Wi-Fi, Networking, Communications, OFDM, MIMO, Beamforming, MU-MIMO, Throughput, Wireless Standards, LAN
Frequently Asked Questions
What is the primary scope of this paper?
The paper provides a comparative study of the IEEE 802.11 wireless networking standards, covering their introduction, evolution, technical implementation, and practical performance.
Which IEEE 802.11 standards are analyzed?
The document analyzes the IEEE 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac standards.
What is the core research goal?
The goal is to evaluate the benefits and limitations of various WLAN standards to help users select the appropriate technology for specific network applications.
What methodology is used in the study?
The study uses a comparative analysis method, examining individual features, frequency bands, and modulation techniques of each standard.
What does the main body of the text cover?
The main body covers the individual technical characteristics of each standard, including MIMO technology, channel bandwidth, and modulation improvements like 256-QAM.
Which keywords characterize this work?
Key terms include IEEE 802.11, WLAN, Wi-Fi, MIMO, OFDM, MU-MIMO, and network throughput.
How does IEEE 802.11n improve upon previous versions?
IEEE 802.11n introduces MIMO technology and 40 MHz channel support, significantly increasing throughput and spatial multiplexing compared to legacy standards.
What is the significance of MU-MIMO in 802.11ac?
MU-MIMO allows an access point to transmit multiple data streams to different clients simultaneously, significantly enhancing network capacity.
What is the role of Beamforming in 802.11ac?
Beamforming focuses signals toward specific devices to improve network capability and data transmission rates over longer distances.
Why is 802.11ac considered a "stylish" technology?
It is capable of achieving output in the gigabit-per-second range and utilizes advanced features like MU-MIMO to handle multiple customer devices efficiently.
- Citar trabajo
- Prashant Pathak (Autor), 2017, A Comparison between WLAN (IEEE 802.11a, b, g, n and ac) Standards, Múnich, GRIN Verlag, https://www.grin.com/document/368284
