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» Capacity of Channels With Action-Dependent States
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JSAC
2008
90views more  JSAC 2008»
13 years 7 months ago
Limited feedback schemes for downlink OFDMA based on sub-channel groups
Abstract--In a downlink Orthogonal Frequency Division Multiple Access (OFDMA) system, optimally allocating sub-channels across mobile users can require excessive feedback of channe...
Jieying Chen, Randall A. Berry, Michael L. Honig
MOBISYS
2008
ACM
14 years 7 months ago
Symphony: synchronous two-phase rate and power control in 802.11 wlans
Adaptive transmit power control in 802.11 Wireless LANs (WLANs) on a per-link basis helps increase network capacity and improves battery life of Wifi-enabled mobile devices. Howev...
Kishore Ramachandran, Ravi Kokku, Honghai Zhang, M...
STOC
1997
ACM
257views Algorithms» more  STOC 1997»
13 years 11 months ago
Practical Loss-Resilient Codes
We present randomized constructions of linear-time encodable and decodable codes that can transmit over lossy channels at rates extremely close to capacity. The encoding and decod...
Michael Luby, Michael Mitzenmacher, Mohammad Amin ...
GLOBECOM
2006
IEEE
14 years 1 months ago
A Directional MAC Protocol for Practical Smart Antennas
- Recently, several MAC protocols using directional antennas, typically referred to as directional MAC protocols, have been proposed for wireless ad hoc networks. However, the MAC ...
Yuya Takatsuka, Katsushiro Nagashima, Masanori Tak...
IMC
2006
ACM
14 years 1 months ago
The need for cross-layer information in access point selection algorithms
The low price of commodity wireless LAN cards and access points (APs) has resulted in the rich proliferation of high density WLANs in enterprise, academic environments, and public ...
Karthikeyan Sundaresan, Konstantina Papagiannaki