499 search results - page 31 / 100 » On the Decay of Crossing Numbers |
TSP
2008
13 years 8 months ago
2008
Sign-selection uses a set of subcarrier signs to reduce the peak-to-average power ratio (PAR) of orthogonal-frequency-division multiplexing (OFDM). However, the computational compl...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
Lattice reduction by means of the LLL algorithm has been previously suggested as a powerful preprocessing tool that allows to improve the performance of suboptimal detectors and t...
WCNC
2008
IEEE
14 years 2 months ago
2008
IEEE
— Diversity techniques are an effective answer to the challenges presented by fading channels. This paper focuses on studying the performance of systems with diversity of three f...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
— The performance limits of multimedia systems combining source (multiple description) coding and channel coding with user cooperation diversity over multi-hop channels is studie...
INFOCOM
2006
IEEE
14 years 2 months ago
2006
IEEE
— Gupta and Kumar showed that throughput in a static random wireless network increases with the amount of hopping. In a subsequent paper (2004), it was shown that although throug...