Throughput Analysis of IEEE 802.11ac and IEEE 802.11n in a Residential Home Environment

2017 ◽  
Vol 9 (1) ◽  
pp. 1-13
Author(s):  
Zawar Shah ◽  
Ashutosh Kolhe
Keyword(s):  
Home Environment ◽  
Frequency Band ◽  
Multipath Fading ◽  
Residential Home ◽  
Average Throughput ◽  
Ieee 802.11N ◽  
High Data ◽  
Wireless Router ◽  
Ieee 802.11Ac ◽  
Commercial Off The Shelf

IEEE 802.11ac is the latest WiFi standard that operates in 5GHz frequency band and promises high data rate than IEEE 802.11n. In this paper, the authors carry out experiments using commercial off-the-shelf equipment in a typical home environment and quantify the gain provided by IEEE 802.11ac compared to IEEE 802.11n. Their experimental results obtained in a typical home environment show that in 5GHz frequency band with a 2x2 MIMO configuration, IEEE 802.11ac provides much higher throughput than IEEE 802.11n. IEEE 802.11ac provides an average throughput gain of 94% and 91% at a distance of 3.6m and 8.5m from the wireless router, respectively. The authors further investigate the gain in average throughput that is provided by IEEE 802.11ac when the transmit antenna diversity on the wireless router is increased from two to three. They note that IEEE 802.11ac with a 3x2 MIMO configuration helps to combat multipath fading effect present in residential home environment and provides higher average throughput than 2x2 MIMO e.g. at a distance of 11m from the wireless router, 3x2 MIMO configuration provides a gain of 15.13% than the 2x2 MIMO configuration. The authors conclude based on their results (obtained via experiments in a typical home environment) that although IEEE 802.11ac wireless routers are more expensive than IEEE 802.11n wireless routers however, high throughput provided by IEEE 802.11ac justifies the high cost associated with its routers.

Review of LiFi Technology and Its Future Applications

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Safwan Alfattani
Keyword(s):  
Traffic Management ◽  
Path Loss ◽  
Hard Core ◽  
Cost Effective ◽  
Multipath Fading ◽  
Radio Spectrum ◽  
Hybrid Technique ◽  
Light Spectrum ◽  
Rf Systems ◽  
High Data

AbstractIn order to respond to the increasing demand of capacity and bandwidth caused by the high number of wireless applications and users, LiFi technology was introduced. It uses the visible light spectrum instead of the radio spectrum to transmit data wirelessly through the illumination of LED lamps. The main advantage of this technology is to provide wireless communications with high data rates. Other advantages include efficiency, availability, security and safety. Also, this technology uses free unlicensed spectrum, and it is cost-effective. Additionally, unlike RF systems, no multipath fading and the transmitter and receiver circuits are not complex. However, LiFi has several issues, which include high path loss, sensitivity to blockages and Non-line-of-sight (NLOS) situations. Probably, the biggest issue of LiFi is the uplink communication which is difficult to implement due to practical and cost reasons. Several future applications of this technology include places where RF is restricted such as hospitals and airplanes. Also, it can be used for traffic management, underwater communication, and outdoor access to the Internet. Moreover, it can be combined with WiFi technology either in hybrid technique or aggregated technique. It is found that later technique gives better results. Another possible application is the optical attocells. It is found that the hexagonal cells model is the best for deterministic deployments of optical APs, whereas the hard-core point process (HCPP) model is the best for random deployments. Furthermore, LiFi can be used for multiuser access with high data rate by using non-orthogonal multiple access (NOMA) technique. Due to the great features of LiFi, more applications and everyday life devices will adopt this technology in the future. However, Because of its limitations, it may not totally replace RF technology, but they will work collaboratively to achieve a better performance.

Performance Analysis of MIMO Schemes in Residential Home Environment via Wideband MIMO Propagation Measurement

2010 ◽  
Vol E93-A (4) ◽  
pp. 814-829 ◽  
Author(s):  
Gia Khanh TRAN ◽  
Nguyen Dung DAO ◽  
Kei SAKAGUCHI ◽  
Kiyomichi ARAKI ◽  
Hiroshi IWAI ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Home Environment ◽  
Residential Home ◽  
Propagation Measurement

scholarly journals RATE COMPATIBLE PUNCTURED TURBO-CODED HYBRID ARQ FOR OFDM SYSTEM

2014 ◽  
pp. 223-225
Author(s):  
DIPALI P. DHAMOLE ◽  
ACHALA M. DESHMUKH
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Data Communication ◽  
Multipath Fading ◽  
Channel Noise ◽  
Ofdm System ◽  
Hybrid Arq ◽  
Throughput Performance ◽  
Broadband Wireless ◽  
High Data ◽  
Free Data

Now a day’s orthogonal frequency division multiplexing (OFDM) is under intense research for broadband wireless transmission because of its robustness against multipath fading. A major concern in data communication such as OFDM is to control transmission errors caused by the channel noise so that error free data can be delivered to the user. Rate compatible punctured turbo (RCPT) coded hybrid ARQ (RCPT HARQ) has been found to give improved throughput performance in a OFDM system. However the extent to which the RCPT HARQ improves the throughput performance of the OFDM system has not been fully understood. HARQ has been suggested as a means of providing high data rate and high throughput communication in next generation systems through diversity combining transmit attempts at the receiver. The combination of RCPT HARQ with OFDM provides significant bandwidth at close to capacity rates of channel. In this paper, we evaluate by computer simulations the throughput performance of RCPT code HARQ for OFDM system as compared to that of conventional OFDM.

Design and Implement of Multi-Antennas for High Data Rate Communication

2013 ◽  
Vol 284-287 ◽  
pp. 2622-2626
Author(s):  
Hsien Wei Tseng ◽  
Yang Han Lee ◽  
Yung Wen Lee ◽  
Chih Yuan Lo ◽  
Yih Guang Jan ◽  
...  
Keyword(s):  
High Throughput ◽  
Communication System ◽  
Real Life ◽  
Antenna System ◽  
High Data Rate ◽  
Experimental Measurements ◽  
Proper Selection ◽  
Ieee 802.11N ◽  
High Data ◽  
Antenna Module

In this paper, it tries from experimental measurements to derive the required minimum antenna isolation and from using this minimum antenna isolation to have the MIMO to execute at its utmost efficiency. The issue of the minimum antenna isolation is actually the problem of pursuing the possible antenna module area of a multi-antenna system. As smaller size communication system is explored in real life the request of small size communication system has been discussed and many systems have been developed. To verify the feasibility of designing a multi-antenna and high throughput system is through the adopt of many MIMO technique implemented IEEE 802.11n 2x2 products to verify whether its throughput can be doubled. In this paper we integrate 4 2x2 AP antenna sets and under the operation of 8 antennas to attain the 1200 Mbps PHY rate through proper selection and design of available antennas, for 1200 Mbps PHY rate it is equivalently to have more then 600 Mbps throughput and with this implementation it is enable to prove the feasibility of the designed system.

scholarly journals Millimeter-Wave Communications

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 251
Author(s):  
Manuel García Sánchez
Keyword(s):  
Millimeter Wave ◽  
Frequency Band ◽  
Data Rate ◽  
High Data Rate ◽  
High Data ◽  
Very High ◽  
Millimeter Wave Communications

For the last few decades, the millimeter wave (mmWave) frequency band (30–300 GHz) has been seen as a serious candidate to host very high data rate communications [...]

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