13041 search results - page 6 / 2609 » Simulating space and time |
JCSS
2000
13 years 8 months ago
2000
We give the first nontrivial model-independent time-space tradeoffs for satisfiability. Namely, we show that SAT cannot be solved simultaneously in n1+o(1) time and n1space for an...
ISBI
2007
IEEE
14 years 2 months ago
2007
IEEE
The concept of “Space-Time Sparsity” (STS) penalization is introduced for solving the magnetoencephalography (MEG) inverse problem. The STS approach assumes that events of int...
VTC
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract: In this paper, we study concatenated coding for MIMOOFDM systems. The proposed concatenated system achieves full spatial and frequency diversity at much lower complexity ...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
Abstract— In this paper, we answer the question that “Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency ...
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
—In this paper we present an analytical approach to evaluate the M-QAM symbol error rate (SER) of Alamouti space time coded OFDM direct conversion receivers subject to carrier fr...