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187
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
Abstract— In this paper, we propose an unequal error protection (UEP) framework for progressive image transmission over wireless networks with both random errors and packet loss....
166
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
— Timing synchronization is a preeminent challenge in ultra-wideband impulse radios (UWB-IRs). The conventional all-digital synchronization methods encounter some formidable impl...
195
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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...
154
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
— Many applications of wireless sensor networks (WSNs) have emerged over the last few years. In such networks resource-constrained sensor nodes are deployed to probe their surrou...
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...