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TCOM
2010
115views more  TCOM 2010»
14 years 8 months ago
On the accuracy of localization systems using wideband antenna arrays
—Accurate positional information is essential for many applications in wireless networks. Time-of-arrival (TOA) and angle-of-arrival (AOA) are the two most commonly used signal m...
Yuan Shen, Moe Z. Win
MOBISYS
2009
ACM
15 years 10 months ago
R2D2: regulating beam shape and rate as directionality meets diversity
We design, implement, and evaluate a vehicular communication system that improves uplink connectivity through multi-lobe beam pattern switching on a smart antenna. Directionality ...
Kishore Ramachandran, Ravi Kokku, Karthikeyan Sund...
MOBIHOC
2006
ACM
15 years 9 months ago
Algorithmic aspects of communication in ad-hoc networks with smart antennas
Smart antennas have gained significant importance in multihop wireless networks in recent years, because of their sophisticated signal processing capabilities that hold the potent...
Karthikeyan Sundaresan, Weizhao Wang, Stephan Eide...
TIT
2002
95views more  TIT 2002»
14 years 9 months ago
Opportunistic beamforming using dumb antennas
Multiuser diversity is a form of diversity inherent in a wireless network, provided by independent time-varying channels across the different users. The diversity benefit is exploi...
Pramod Viswanath, David N. C. Tse, Rajiv Laroia
JSAC
2006
128views more  JSAC 2006»
14 years 9 months ago
Optimized Transmission for Fading Multiple-Access and Broadcast Channels With Multiple Antennas
In mobile wireless networks, dynamic allocation of resources such as transmit powers, bit-rates, and antenna beams based on the channel state information of mobile users is known t...
Mehdi Mohseni, Rui Zhang, John M. Cioffi