2007 search results - page 139 / 402 » SPECTRUM |
115
Voted
MONET
2006
15 years 3 months ago
2006
Enabled by regulatory initiatives and advanced radio technology, more flexible opportunistic spectrum access has great potential to alleviate the spectrum scarcity. In this paper,...
126
click to vote
TMC
2008
15 years 3 months ago
2008
Collaborative relays achieve the benefits of spatial diversity without requiring physical antenna arrays at end devices. While many studies have demonstrated its effectiveness in a...
133
Voted
ETT
2000
15 years 3 months ago
2000
Spread spectrum multi-carrier multiple access (SS-MC-MA) systems exploit in a similar manner as MC-CDMA systems the advantages of the diversity gain due to the spread spectrum tech...
163
click to vote
TASLP
2002
15 years 3 months ago
2002
We present a spectral domain, speech enhancement algorithm. The new algorithm is based on a mixture model for the short time spectrum of the clean speech signal, and on a maximum a...
115
click to vote
TIT
2002
15 years 3 months ago
2002
In this paper we explore some dynamic characteristics of the envelope of a bandpass Gaussian process, which are of interest in wireless fading channels. Specifically, we show that ...