Modeling and Analysis of Power Consumption in TCP Data Transmission over a Wireless LAN Environment

Author(s):  
Masafumi Hashimoto ◽  
Go Hasegawa ◽  
Masayuki Murata
2011 ◽  
Vol 271-273 ◽  
pp. 991-994
Author(s):  
Qing Fu Huang ◽  
Jian Wu Yang ◽  
Zhi Cheng Chen

With the development of the technology and society, the resolution of the wireless LAN would be the direction which is leading the smart home LAN’s construction, the IR, RF, Bluetooth, Zigbee, GPRS, and others wireless methods have been applied in the smart home smoothly, like the control, security, data transmission, now it is time to specified the rules for the wireless technology in the smart home, this paper introduces a kind of the smart home wireless bus protocol that based on the Modbus protocol, and the hardware and PC software have been designed for it, the project achieved the operation and communication among the nodes, the test realizes that it has the better data transmission mechanism when adopting the wireless bus protocol, and make sure the reliability of the data transmission between the nodes in the smart home.


2013 ◽  
Vol 56 (3) ◽  
Author(s):  
Zhang Qi-sheng ◽  
Deng Ming ◽  
Guo Jian ◽  
Luo Wei-bing ◽  
Wang Qi ◽  
...  

<p>There has been considerable development of seismic detectors over the last 80 years. However, there is still a need to further develop new earthquake exploration and data acquisition systems with high precision. In particular, for China to keep up with the latest technology of these systems, it is important to be involved in the research and development, instead of importing systems that soon fall behind the latest technology. In this study, the features of system-on-a-programmable-chip (SoPC) technology are analyzed and used to design a new digital seismic-data acquisition station. The hardware circuit of the station was developed, and the analog board and the main control data-transmission board were designed according to the needs of digital seismic-data acquisition stations. High-definition analog-to-digital converter sequential digital filter technology of the station (cascade integrator comb filter, finite impulse response digital filter) were incorporated to provide advantages to the acquisition station, such as high definition, large dynamic scope, and low noise. A specific data-transmission protocol was designed for the station, which ensured a transmission speed of 16 Mbps along a 55-m wire with low power consumption. Synchronic acquisition was researched and developed, so as to achieve accuracy better than 200 ns. The key technologies were integrated into the SoPC of the main control data-transmission board, so as to ensure high-resolution acquisition of the station, while improving the accuracy of the synchronic acquisition and data-transmission speed, lowering the power consumption, and preparing for the follow-up efforts to tape out.</p>


2008 ◽  
pp. 1349-1360
Author(s):  
Göran Pulkkis ◽  
Kaj Grahn ◽  
Jonny Karlsson

In a wired local-area network (LAN), the network ports and cables are mostly contained inside a building. Therefore, a hacker must defeat physical security measures, such as security personnel, identity cards, and door locks, to be able to physically access the LAN. However, the penetration capability of electromagnetic waves exposes the data-transmission medium of a wireless LAN (WLAN) to potential intruders (Potter & Fleck, 2003).


2015 ◽  
Vol 76 ◽  
pp. 302-307 ◽  
Author(s):  
Aina Mardhiyah M. Ghazali ◽  
W.Z.W. Hasan ◽  
M.N. Hamidun ◽  
Ahmed H. Sabry ◽  
S.A. Ahmed ◽  
...  

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3654 ◽  
Author(s):  
Xuanyu Wang ◽  
Weizhan Zhang ◽  
Xiang Gao ◽  
Jingyi Wang ◽  
Haipeng Du ◽  
...  

Mobile video applications are becoming increasingly prevalent and enriching the way people learn and are entertained. However, on mobile terminals with inherently limited resources, mobile video streaming services consume too much energy and bandwidth, which is an urgent problem to solve. At present, research on cost-effective mobile video streaming typically focuses on the management of data transmission. Among such studies, some new approaches consider the user’s behavior to further optimize data transmission. However, these studies have not adequately discussed the specific impact of the physical environment on user behavior. Therefore, this paper takes into account the environment-aware watching state and proposes a cost-effective mobile video streaming scheme to reduce power consumption and mobile data usage. First, the watching state is predicted by machine learning based on user behavior and the physical environment during a given time window. Second, based on the resulting prediction, a downloading algorithm is introduced based on the user equipment (UE) running mode in the LTE system and the VLC player. Finally, according to the corresponding experimental results obtained in a real-world environment, the proposed approach, compared to its benchmarks, effectively reduces the data usage (14.4% lower than that of energy-aware, on average) and power consumption (about 19% when there are screen touches) of mobile devices.


2013 ◽  
Vol 416-417 ◽  
pp. 900-903 ◽  
Author(s):  
Yu Hang Jiang ◽  
Hong Xia Yang

Zigbee technology is a kind of bi-directional wireless communication technology characterized by close distance, low complexity, low power consumption, low speed and low cost. It is mainly used for data transmission of various electronic equipments with short distance, low power consumption and low transmission speed, as well as application of typical periodic data, intermittent data and low reaction time data transmission. This thesis first of all makes an analysis of characteristics of zigbee technology, based on which the design of wireless intelligent home control system based on zigbee technology is proposed. Finally, it gives an analysis of the daily management and maintenance of intelligent system, so as to contribute to further studies.


2014 ◽  
Vol 608-609 ◽  
pp. 494-498
Author(s):  
Xi You Liu ◽  
Hong Ying Wang

The article analyze current situation of the electric meter reading system, and given circuit of the remote automatic meter reading based on single-chip system model, and introduced in detail the key part of data acquisition, data concentrator and the monitoring center software, hardware implementation. The wiring complexity of the project has been reduced by using the technology of RS485 communication for data transmission, which has been improved the reliability of data communication system, and reduced power consumption. The results show that the terminal is normal and reliable.


2013 ◽  
Vol 411-414 ◽  
pp. 125-130
Author(s):  
Yan Bo Niu ◽  
An Ping Jiang

SM4 is a 128-bit block cipher used in SOC and smart cards to ensure the safety of data transmission. In order to realize a low power implementation of the SM4 cipher block, some S-boxes were evaluated firstly and we proposed a new architecture of SM4 S-box called MUX S-box with a power consumption of 13.92W@10Mhz on SMIC 0.18m technology, Meanwhile, the implementation of SM4 cipher round based on the SM4 MUX S-box was completed and a low power consumption of 0.33mW @ 10 MHz on 0.18 m CMOS technology is achieved.


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