4983 search results - page 600 / 997 » order 2008 |
204
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TWC
2008
15 years 7 months ago
2008
In this paper, we investigate an optimal power loading algorithm for an OFDM-based cognitive radio (CR) system. The downlink transmission capacity of the CR user is thereby maximiz...
212
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TWC
2008
15 years 7 months ago
2008
Abstract--Designing diversity achieving schemes over the wireless broadband fading relay channels is crucial to achieve higher diversity gains. These gains are achieved by exploiti...
207
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TWC
2008
15 years 7 months ago
2008
Abstract-- This paper addresses preamble-based low complexity synchronization, channel estimation and equalization for Zero-padded (ZP) MB-OFDM based UWB systems. The proposed sync...
233
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TWC
2008
2008
On the design, selection algorithm and performance analysis of limited feedback transmit beamforming
15 years 7 months ago
Multiple-input multiple-output (MIMO) systems achieve significant diversity and array gains by using transmit beamforming. When complete channel state information (CSI) is not avai...
186
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TWC
2008
15 years 7 months ago
2008
This paper addresses the following question, which is of interest in the design of a multiuser decentralized network. Given a total system bandwidth of W Hz and a fixed data rate c...