6568 search results - page 1038 / 1314 » Reducing the Complexity of Reductions |
194
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
— We present a new hybrid scheme which combines space-time block codes (STBC) and spatial multiplexing (SM) to achieve both diversity and spatial multiplexing gain. We design a n...
194
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...
187
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
Abstract—In an OFDM receiver with direct-conversion architecture, DC offset (DCO) and carrier frequency offset (CFO) cause a severe performance degradation. Recently, by investig...
169
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ICCCN
2007
IEEE
16 years 1 months ago
2007
IEEE
This paper proposes a spatio-temporal macroprogramming paradigm for push-pull hybrid wireless sensor networks (WSNs). The proposed paradigm, called SpaceTime Oriented Programming ...
174
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ICCCN
2007
IEEE
16 years 1 months ago
2007
IEEE
—Motivated by the fact that most of the existing QoS service composition solutions have limited scalability, we develop a hierarchical-based solution framework to achieve scalabi...