Gaining inspiration from the anime character Goku, Dr. Anwar shake Khoirul wireless world.
VIVAnews - indeed big INSPIRATION can come from anywhere, including from animated films for children. You probably never thought, a Japanese anime film turned out to be an important discovery that revolutionizes inspire belief in the universe an unbroken transmission of wireless telecommunications.
But the story is what happened to Khoirul Anwar, lecturer and researcher from Indonesia who work in laboratoriom Information Theory and Signal Processing, Japan Advanced Institute of Science and Technology, in Japan.
When pressed for research themes should be submitted to obtain research funding, Khoirul racked his brains. Finally the idea came also from Dragon Ball Z, Japanese animated film which she often watched.
When Goku, the main character of Dragon Ball Z, was about to deliver a stance terdahsyatnya, 'Genki Dama' aka Spirit Ball, Goku will absorb all living creatures in nature, resulting in tremendous energy.
"The concept that I lower the mathematical formula to apply to my research," said Khoirul, to VIVAnews via electronic mail, Friday, August 13, 2010.
And inspiration is now morphing into a paper titled "A Simple Turbo equalization for Single Carrier Block Transmission Without Guard Interval."
The calculation of spectrum efficiency Khoirul Dr Anwar
Letting Khoirul stance Spirit Ball Goku as Equalizer Turbo (turbo decoder) capable of collecting all the energy from the transmission block including delay, or block of previous transmission, to eliminate distortions of data caused by wave interference.
Assistant Professor 31-year-old can break the assumption that initially 'not possible' in the world of telecommunications. Now that a signal is transmitted wirelessly, it's no longer necessary diperisai by the guard interval (GI) to keep it immune to the delay, reflection, and interference. Turbo equalizer was going to cancel the interference so that the receiver can receive the signal without distortion.
With GI rid of, and take advantage of the turbo decoder, even theoretically could eliminate the transmission power loss due to no need to send power to the GI. Loss of GI can also be filled by the parity bits that can be used to correct errors due to distortion (error correction coding).
"GI really is something that is 'not useful' on the receiver other than just to be limiting. So send power to something 'useless' is in vain," said Khoirul.
This idea alone, worked together Khoirul Tadashi Matsumoto, a professor in the laboratory where Khoirul main work. At that time he and Tadashi want to submit the project to the Kinki Mobile Wireless Center.
After dropping in a concrete mathematical formula, Hui Zhou Khoirul asked his colleagues, to make its program.
Chained workings Turbo equalization
This method can be practically able to solve the problem of wireless transmission. Moreover, he could apply to almost all telecommunications systems, including GSM (2G), CDMA (3G), and is suitable for application in 4G systems requiring high performance with low complexity level.
He also can be applied to Indonesia, especially in big cities that have lots of skyscrapers, as well as in mountainous terrain. Because this area is usually transmitted wave reflections and experience a longer delay.
Not surprisingly, these findings refine the Best Paper for Young Scientist category at the Institute of Electrical and Electronics Engineers vehicular Technology Conference (IEEE VTC)-Spring 2010 held 16 to 19 May 2010, in Taiwan.
Now the findings that have been patented that are used by a major Japanese electronics company. Even the technology is also being explored by China's telecom giant, Huawei Technology.
***
This is not the first success for Khoirul. In 2006, he origin of Kediri, East Java, it also has found ways to reduce transmission power on multicarrier systems such as orthogonal frequency-division multiplexing (OFDM) and Multi-carrier code division multiple access (MC-CDMA).
The trick is to introduce the spreading code using Fast Fourier Transform so that its complexity is very low. With this method it could reduce the power fluctuations. And the telecommunications equipment used do not need to provide a backup for high power.
Later, these findings he patented. This technique has been used by the Japanese satellite company. And that also made her surprise, 4G systems are very similar to the findings that he patented it.
However, the son of the couple (late) Sudjianto with Siti Patmi it, never forget the origin. The results of its first patent royalties that he gave to his mother who now lives farming in Kediri. "This is a form of my appreciation to the parents, especially mothers," he said.
Khoirul father died of illness, when he had just graduated from elementary school in 1990. Her mother, then tried hard to send him, even though both parents do not have to graduate from elementary school.
Since childhood, Khoirul live in poverty. But there is only way for him to continue his education. For example, while continuing high school in Kediri, suddenly there are people who offer free boarding for him.
When he continued to lecture at ITB, during the four years she always get a scholarship. "My parents did not need to send any more money," said Khoirul remembering his past. Moncer brain Khoirul to continue to bring high education.
He received a scholarship from Panasonic S2, S3 and further scholarship from the Japanese company. "Thank God, although I am not from a wealthy family, stay in school until S3. My sincere thanks to all scholarship." he said.
*** Success in the country do not make people forget the land of birth. "Someday I will also continue to return to Indonesia. After winning a lot of science abroad," said Khoirul.
Outside of her life as a researcher, Khoirul also teach and guide students' master's and doctoral degrees. The depth of knowledge of religious men who had become takmir mosque in his high school, it also took him frequently was asked to give religious lectures in Japan, even becoming Khatib Iedul Fitr prayer.
Not only that, Khoirul also often invited to give lectures Indonesian culture. "Our existence abroad does not mean we do not love Indonesia, but that we as ambassadors of Indonesia," he said.
During the teaching of Indonesian culture, he heard many comments about his homeland. There are praised Indonesia, of course, there is also a blasphemy. For the latter, he usually replied in Japanese: ha mada ganbatteimasu Indonesia (Indonesia is trying and struggling).
*** Now, Khoirul live in Nomi, Ishikawa, not far from his workplace, together with his wife, Sri aunty Indriyani, and three beloved sons. "All the kids I meet the formula for arithmetic series with difference 1.5 years," explains Khoirul.
The biggest was born in Kawasaki, Yokohama, aged 7 years. The second was born in Nara, aged 5.5 years, and the third was also born in Nara, now aged four years. He did not agree with some Japanese colleagues, who said the family's presence would likely interfere with his research.
For her family in finding a lot of inspiring new ideas. "Lately I managed to find a new and very efficient technique for wireless network while playing with the kids," he said.
In fact, Khoirul would often take his children to do small-scale research in his home. With her children also, Khoirul often spend time together watching, especially animation fetish movie: Dragon Ball Z, Kungfu Panda, Gibli, or Detective Conan.
"Animated films to teach our children that we must understand the value in life," said Khoirul. Gibli animated film, for example, tells how much should a man can be friends with nature, not hurt them, and loving creatures.
Even new ideas and spirit sometimes appears from watching the movie. For example the value of life that he learned from the movie Kung Fu Panda: 'There is no secret ingredient, just believe'. "The value of this I mean that there are no secrets of success, believe that whatever we do can make us successful." Khoirul said.
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