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135
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TCOM
2010
15 years 4 months ago
2010
—In this letter, we address two questions concerning the application of multipulse pulse-position modulation (MPPM) for free-space optical (FSO) communications: (1) under what co...
171
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GLOBECOM
2007
IEEE
16 years 22 days ago
2007
IEEE
— This paper presents a novel stochastic link-layer channel model for IEEE 802.11 ad hoc networks. The model characterizes the variations of the channel service process in a non-...
151
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ICA
2010
Springer
15 years 6 months ago
2010
Springer
The problem of estimating a sparse channel, i.e. a channel with a few non-zero taps, appears in many fields of communication including acoustic underwater or wireless transmissions...
173
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PIMRC
2008
IEEE
16 years 23 days ago
2008
IEEE
Abstract—We present two interference alignment techniques such that an opportunistic point-to-point multiple input multiple output (MIMO) link can reuse, without generating any a...
178
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ICC
2007
IEEE
16 years 21 days ago
2007
IEEE
Abstract— We propose a power and constellation-size adaptation scheme for the multicast system employing multilevel quadrature amplitude modulation (MQAM) with discrete constella...