11927 search results - page 2069 / 2386 » Wireless Sensor Networks |
115
Voted
WCNC
2008
IEEE
15 years 11 months ago
2008
IEEE
— In this paper, we present a novel algorithm for reducing sidelobe interference power levels in OFDM-based cognitive radios. Existing techniques for sidelobe suppression can be ...
145
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WCNC
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract— We consider a scenario in which frequency agile radios opportunistically share a fixed spectrum resource with a set of primary nodes. We develop a collaborative scheme...
156
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WCNC
2008
IEEE
15 years 11 months ago
2008
IEEE
—In this contribution an accurate average bit error rate (BER) formula is derived for Nakagami-faded MC-DSCDMA in the context of asynchronous transmissions and random spreading s...
129
Voted
WMTE
2008
IEEE
15 years 11 months ago
2008
IEEE
Mobile and ubiquitous learning facilitates language learners to continue their learning process outside the formal classroom, when and where they desire. While more and more learn...
148
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ADHOCNOW
2008
Springer
15 years 11 months ago
2008
Springer
We present 1 − approximation algorithms for the maximum matching problem in location aware unit disc graphs and in growth-bounded graphs. The algorithm for unit disk graph is loc...