24421 search results - page 137 / 4885 » Communicating Complex Systems |
PPNA
2011
13 years 4 months ago
2011
The proliferation of novel wireless network technologies creates new opportunities for complex peerto-peer information dissemination systems. A key challenge that remains in this a...
XMLSEC
2003
ACM
14 years 2 months ago
2003
ACM
Authorization systems today are increasingly complex. They span domains of administration, rely on many different authentication sources, and manage permissions that can be as com...
VTC
2008
IEEE
14 years 3 months ago
2008
IEEE
—In this paper, a novel blind channel estimation algorithm for a multiple input multiple output (MIMO) system is described. This algorithm is easier to implement than the previou...
GLOBECOM
2008
IEEE
13 years 9 months ago
2008
IEEE
Efficient and reliable power allocation algorithm in Cognitive radio (CR) networks is a challenging problem. Traditional water-filling algorithm is inefficient for CR networks due ...
ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract—In this paper, we propose a training-based channel estimation scheme for large non-orthogonal space-time block coded (STBC) MIMO systems. The proposed scheme employs a b...