293 search results - page 52 / 59 » Opportunistic Multiple Access for Cognitive Radio Networks |
VTC
2007
IEEE
15 years 3 months ago
2007
IEEE
— The characterization of downlink traffic power is an important issue for the design of efficient call admission control (CAC) and radio resource management (RRM) procedures. In...
MOBIHOC
2009
ACM
15 years 10 months ago
2009
ACM
In this paper, we present the architecture of a highly configurable multi-input multi?output (MIMO) orthogonal frequency division multiple access (OFDMA) platform. The platform is...
WCNC
2010
IEEE
14 years 7 months ago
2010
IEEE
— Previous works studied the effect of many system parameters on spectrum sharing opportunities where secondary users access the spectrum of primary users. However, a parameter t...
ICC
2007
IEEE
15 years 3 months ago
2007
IEEE
Abstract— Wireless ad hoc networks provide a useful communications infrastructure for the mobile battlefield. In this paper we apply and develop passive radio frequency signal s...
IJDSN
2006
14 years 9 months ago
2006
Reliable dissemination of bulk data is one of the important problems in sensor networks. For example, programming or upgrading the software in sensors at run-time requires reliabl...