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127
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
—In this paper, the joint source and channel coding for progressive image transmission over channels with varying SNR is considered. Since the feedback of channel status informat...
150
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ICC
2007
IEEE
15 years 10 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...
110
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— Zero-padded OFDM (ZP-OFDM) systems have recently been adopted in certain wireless systems, such as the multiband-OFDM based WiMedia standard, instead of the more common...
129
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
—Cooperative diversity is effectively used to combat the correlated fading. In the existing papers on cooperative diversity, the fading channels are idealistically assumed to be ...
150
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
— This paper describes a combined modulation scheme for time hopping ultra wideband (TH-UWB) radio systems using on-off keying (OOK) and pulse shape modulation (PSM). For this sc...