What's next: "Edison Memorial Lecture - 2010"

Venue:	NCH, NITW
Date:	Jan. 11, 2010
Time:	5:00 pm

In 1884, Thomas Alva Edison was a part of the first technical meeting of the AIEE (a new organization formed for to support professionals in their nascent field and to aid them in their efforts to apply innova-tion for the betterment of humanity – American Institute of Electrical Engineers) at Philadelphia. In 1912, the IRE (Institute of Radio Engineers) was es-tablished on similar lines for the development of radio and electronics. Through the leadership from these societies and the application of their members’ innovations to the industry, electricity wove its way into every aspect of daily life. Increasingly their interests began to overlap and in 1963, they merged into the IEEE.

Topic of Lecture: Wireless Communication

Mobile wireless communication encounters non-line-of-sight (NLOS) propagation. While line-of-sight (LOS) propagation results in a single-path communication channel, NLOS propagation gives rise to multi-path communication channel. A multi-path channel is a frequency selective channel. Wireless communication also encounters fading, in addition to NLOS propaga-tion. Because of multi-path propagation and fading, reliable communication and high bit rate transmis-sion are very difficult to realize. OFDM (orthogonal frequency division multiplexing) converts a multi-path channel into sum of parallel single-path channels. It is well known that for a given transmit power, a linear memory less modulation achieves highest spectral efficiency, bits/Hz/s, in a single-path channel. Fur-ther, the modulator, demodulator and equalizer are simple in complexity with OFDM.

About Speaker: Prof.V.U.Reddy

Received B.E, M.Tech and Ph.D. (Electrical Engineering) from the Osmania University, Hyderabad, IIT Kharagpur and the University of Missouri in 1962, 1963 and 1971, respectively. He held brief assignments with Bell Telephone Labs (Holmdel) and the University of the West Indies (Trinidad and Tobago) before returning to India in 1972. He was an Assistant Professor at IIT, Madras (1972-76), a Professor at IIT Kharagpur (1976-79), and a Visiting Professor at Stanford Univer-sity (1979-82).Later, he joined the University as a Professor and Project Director of Research and Training Unit for Navigational Elec-tronics (1982-88) (he was its founding Director). In March 1988, he moved to the Indian Institute of Science (IISc), Bangalore, as a Pro-fessor of Electrical Communication Engineering (he was the Depart-ment Chair during 1992-1995). After retiring from IISc in 2001, he held CTO and Chief Scientist positions with the Hellosoft India Pvt. Ltd., during 2001-2003 and 2006-2008, respectively, where his work was mainly focused on the design of WLAN and its enhanced version.

 

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