IEEE Radio and Wireless Conference
RAWCON 2004
Special Session Speaker
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3:00pm
Radios for
Next Generation Wireless Networks
Dr. Ahmadreza Rofougaran
Broadcom
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Abstract:
The next generation Internet will carry even higher speed
data to offices and homes. A high data rate wireless network
is needed to continue high speed data transmission to the
ever increasing number of wireless computing devices, such
as notebooks and PDAs, and to support high data rate applications
that require video, etc. Next generation wireless networks
will require multi-carrier modulation schemes such as Orthogonal
Frequency Division Multiplexing (OFDM) to support high data
rates over harsh wireless channels. OFDM with high levels
of modulation on subcarriers and multiple input/output (MIMO)
transceivers enables even higher data rates and throughput.
The future network will also have to support existing WirlessLAN
systems/standards such as 802.11a /b/g in the 2.4GHz and 5GHz
bands .The radios in such systems will have to provide high
performance and be highly linear to support the OFDM modulation
with multiple input/output (MIMO) and cover several bands
of frequencies such as 2.4 and 5 GHz. The next generation
wireless network will be supporting a wide range of data rates
over several frequency bands and will require adaptive and
programmable system resources. Thus, transceivers used in
such wireless networks will have to incorporate self-calibration
and full programmability to support the high performance and
adaptively. Finally, long battery life for portable devices
requires low power designs at the circuit level, architectural
level and overall system level. There are many challenges
in implementing high data rate programmable OFDM MIMO transceivers
that cover different frequency bands and maintain low current
consumption and low-cost. This talk will address the issues
with the implementation of radios for next generation wireless
networks and will discuss the solutions to the issues.
Biography:
Dr. Ahmadreza Rofougaran was born in Iran in February 1964.
He received the B.S., M.S., and Ph.D. degrees in electrical
engineering from the University of California, Los Angeles
(UCLA), in 1986, 1988, and 1998, respectively. His Ph.D. research
was on the integration of a full CMOS RF frequency-hopped
spread-spectrum transceiver. He was with Gigabit Logic, Inc.,
Newbury Park, CA, from 1988 to 1992. He has been a Consultant
with various companies form 1992 to 1998 in the area of wireless
communications. In 1998, he co-founded Innovent System Corporations
and currently is with Broadcom Corporation leading RF CMOS
and wireless products. He has more than 20 publications in
journals and conferences. Dr. Rofougaran was a co-recipient
of the 1995 ESSCIRC Best Paper Award, the 1996 ISSCC Outstanding
Student Paper Award, the 1997 ISSCC Outstanding Technology
Directions Paper Award, and the 1998 DAC Best Paper Award.
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