159 search results - page 10 / 32 » Optimization of OFDMA-Based Cellular Cognitive Radio Network... |
GLOBECOM
2007
IEEE
13 years 9 months ago
2007
IEEE
—Open spectrum systems allow unlicensed secondary users equipped with cognitive radio to opportunistically access the spectrum underutilized by primary users. Cognitive radio has...
INFOCOM
2005
IEEE
14 years 1 months ago
2005
IEEE
— In third generation (3G) cellular networks, base stations are connected to base station controllers by pointto-point (usually T1/E1) links. However, today’s T1/E1 based backh...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secon...
MOBIHOC
2009
ACM
14 years 8 months ago
2009
ACM
Cognitive radio networks are emerging as a promising technology for the efficient use of radio spectrum. In these networks, there are two categories of networks on different chann...
GLOBECOM
2008
IEEE
14 years 2 months ago
2008
IEEE
— In this paper, we study QoS routing in wireless mesh networks with cognitive radios, which involves route selection, channel allocation and scheduling. It turns out to be a har...