KMITL
Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1
Browse
8 results
Search Results
- Some of the metrics are blocked by yourconsent settings
Item type:Item, Wireless Body Area Network Transmission Model Based on Measurement Data(2018-08-21) ;Chaisang, AditepPromwong, SathapornWireless body area network (BAN) technology is becoming an increasingly important part of the human body communication system and short range applications. Characteristic of ultra wideband impulse radio (UWB-IR) channel propagation is very important. The human body is more complex than other applications. Therefore, to understand the characteristics of the channel distribution on the human body is so important. This paper presents characteristic of channel propagation due to effect within human body and without human body for wireless applications based on measurement data. The template waveform is considered at the receiver side to maximize the SNR for evaluation. In this paper, the results are evaluated based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of UWB transmission for wireless medical applications, especially focusing on the effect of template waveform. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Optimization of HB-UWB Transmission Waveform for BAN Applications(2018-07-02) ;Chaisang, AditepPromwong, SathapornThe modern technology of wireless communications is rapidly developed and apply with short range communication networks around human body. The related research in these application has been investigating. In order to study the effect of human body in the high speed data rate technology, the patterns of ultra wideband for body area network has been studied. The measurement results have been measure and collected by vector network analyzer and analyze by using the equation of Friis. The proposed model is design for test and measure with human body in an indoor environment. The results show the usefulness information for a wireless communication for human body area network with ultra wideband. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Experimental evaluation of UWB human body transmission model for WBAN(2016-09-06) ;Teawchim, SanitPromwong, SathapornThis paper presents experimental evaluation of UWB human body transmission model for WBAN. The human body is more complex and many side than other application. Therefore, to understand human body channel is so important. The root raise cosine passband waveform is used as UWB transmitted waveform. The channels model is classified with body mass index. The body channel transfer functions on human body are measured by using vector network analyzer (VNA) at frequency 3 GHz to 5 GHz. The path loss model is show compared of average power loss and peak power loss. The results are discussed in conclusion. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Experimental study of ultra wideband human body channel(2016-09-06) ;Teawchim, Sanit ;Southisombath, PhouthongPromwong, SathapornThis paper a study of UWB human body channel. The human body is more complex than other application. Therefore, to understand human body channel is so important. The analysis is based on the extension Friis' transmission formula that uses to characterize the WBAN channel transfer function. The rectangular passband waveform is used as UWB transmitted waveform. The channels of 5 positions on human body are measured by using vector network analyzer (VNA). The frequency channel transfer functions, power delay profile (PDP) and path loss are shown. The results are discussed in conclusion. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Evaluation of HB-UWB transmission model for body area network(2016-09-06) ;Southisombath, Khamphoui ;Southisombath, PhouthongPromwong, SathapornBody area network (BAN) is becoming an increasingly important part of the wireless communication system and short range applications. Characteristic of ultra wideband impulse radio (UWB-IR) channel propagation is very important. The human body is more complex than other applications. Therefore, to understand the characteristics of the channel distribution on the human body is so important. This paper presents characteristic of channel propagation due to effect within human body and without human body for wireless applications based on measurement data. The template waveform is considered at the receiver side to maximize the SNR for evaluation. In this paper, the results are evaluated based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of UWB transmission for wireless medical applications, especially focusing on the effect of template waveform. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Performance evaluation of UWB-BAN with friis's formula and CLEAN algorithm(2013-08-01) ;Koonchiang, Krisada ;Arpasilp, DissakanPromwong, SathapornAn ultra wideband impulse radio (UWB-IR) are developing to use in communication system and medical application because it has been an increase interest in using on body for health monitoring and body area networks (BAN). This research want to improving UWB channel propagation on body by using CLEAN algorithm for eliminate noise in channel propagation. In addition to, we use result from previous work for easier to compare performance before system. Moreover, in this paper us analysis performance of system when using CLEAN algorithm and compare without use CLEAN Algorithm by us will show BER in each position on body for analysis performance of CLEAN algorithm can be reduce noise or effect on body when without CLEAN Algorithm. © 2013 Springer Science+Business Media Dordrecht(Outside the USA). - Some of the metrics are blocked by yourconsent settings
Item type:Item, Measurement and evaluation of RFID transmission characteristic for long range systems(2009-11-18) ;Duangsuwan, S. ;Promwong, S.Chengtanomwong, P.The radio frequency identification (RFID) is a wireless communications that lets computer reads the identity to tag at 2:45 GHz can be fast identified the high speeds at 3 meters read range guaranteed at speeds of 100 km/hr. This paper used the model for expressway by supposing receiver moves to fixed transmitter, the microstrip antenna was used for both transmitter and receiver, The Friis's transmission formula is used for analysis. We considered characteristics of antennas performance at each distance transmission channel, magnitude and phase channel transfer function, bit error rate, path loss and rms delay spread were the results of experimental. This technique is very to useful for analyzed the signal performance and transmission signal in the RFID networks. © 2009 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Item, Measurement and modeling of RFID propagation channel with in an indoor environment(2008-12-01) ;Duangsuwan, S. ;Promwong, S.Sukutamatanti, N.The radio frequency identification (RFID) technology was automatic identify becomes was essential in the service an indoor environment such as contactless smart card and libraries [10] at high frequency in free space transfer function in wireless communication usually consider used Friss's formula for analysis. This paper the RFID propagation channel at 2.45 GHz with indoor environment. The measurement result are evaluation by using Friis's transmission formula to find the magnitude and phase channel transfer function, path loss, and power delay profile. This technique is very useful for analyzed the signal strength and radio propagation loss of RFID transmission signal © 2008 IEEE.
