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140
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PEWASUN
2004
ACM
15 years 8 months ago
A performance evaluation framework for IEEE 802.11 ad-hoc networks
Interferences in an ad-hoc network can be defined as a set of constraints that specify which groups of nodes cannot transmit simultaneously, and they have significant implications...
Ping Chung Ng, Soung Chang Liew, Li Bin Jiang
144
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ICASSP
2011
IEEE
14 years 7 months ago
Training design in single relay AF cooperative systems with correlated channels
In this paper, training design is studied for a single relay amplify-and-forward cooperative network. The taps of the frequency selective channels are assumed to be correlated and...
Christos Mavrokefalidis, Athanasios A. Rontogianni...
TIT
2008
129views more  TIT 2008»
15 years 3 months ago
Cooperative Fading Regions for Decode and Forward Relaying
Abstract--Cooperative transmission protocols over fading channels are based on a number of relaying nodes to form virtual multiantenna transmissions. Diversity provided by these te...
Stefano Savazzi, Umberto Spagnolini
126
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INFOCOM
2010
IEEE
15 years 1 months ago
Reliable GPS-Free Double-Ruling-Based Information Brokerage in Wireless Sensor Networks
Abstract—Because the global positioning system (GPS) consumes a large amount of power and does not work indoors, many GPS-free information brokerage schemes are proposed for wire...
Chia-Hung Lin, Jian-Jhih Kuo, Ming-Jer Tsai
PERCOM
2003
ACM
16 years 3 months ago
Using Personnel Movements for Indoor Autonomous Environment Discovery
We present a novel method of extracting topological and metric geographical data using only positional data sensed from personnel movements. We extend research from the field of r...
Robert K. Harle, Andy Hopper