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ICASSP
2008
IEEE
14 years 3 months ago
Time-frequency localization from sparsity constraints
In the case of multicomponent AM-FM signals, the idealized representation which consists of weighted trajectories on the time-frequency (TF) plane, is intrinsically sparse. Recent...
Pierre Borgnat, Patrick Flandrin
ICC
2008
IEEE
130views Communications» more  ICC 2008»
14 years 3 months ago
A Polynomial-Time Approximation Algorithm for Weighted Sum-Rate Maximization in UWB Networks
— Scheduling in an ad hoc wireless network suffers from the non-convexity of the cost function, caused by the interference between communication links. In previous optimization t...
Gyouhwan Kim, Qiao Li, Rohit Negi
INFOCOM
2008
IEEE
14 years 3 months ago
T-Lohi: A New Class of MAC Protocols for Underwater Acoustic Sensor Networks
This paper introduces T-Lohi, a new class of distributed and energy-efficient media-access protocols (MAC) for underwater acoustic sensor networks (UWSN). MAC design for UWSN fac...
Affan A. Syed, Wei Ye, John S. Heidemann
ICC
2007
IEEE
164views Communications» more  ICC 2007»
14 years 3 months ago
Communication Limits with Low Precision Analog-to-Digital Conversion at the Receiver
— We examine the Shannon limits of communication systems when the precision of the analog-to-digital conversion (ADC) at the receiver is constrained. ADC is costly and powerhungr...
Jaspreet Singh, Onkar Dabeer, Upamanyu Madhow
ICC
2007
IEEE
139views Communications» more  ICC 2007»
14 years 3 months ago
Generic Centralized Downlink Scheduler for Next Generation Wireless Cellular Networks
– Future wireless cellular networks such as High Speed Downlink Packet Access (HSDPA) and 1x EVolution Data Optimized (1xEV-DO) promise to revolutionize the mobile user’s wirel...
Bader Al-Manthari, Najah A. Abu Ali, Nidal Nasser,...