193 search results - page 6 / 39 » Addressing the Dynamic Range Problem in Cognitive Radios |
INFOCOM
2010
IEEE
13 years 7 months ago
2010
IEEE
Recently, a cooperative paradigm for single-channel cognitive radio networks has been advocated, where primary users can leverage secondary users to relay their traffic. However, i...
INFOCOM
2012
IEEE
11 years 11 months ago
2012
IEEE
—In this paper we study the resource allocation in OFDM-based cognitive radio (CR) networks, under the consideration of many practical limitations such as imperfect spectrum sens...
MOBIHOC
2009
ACM
14 years 9 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...
ICC
2007
IEEE
14 years 28 days ago
2007
IEEE
Abstract--Cognitive radio (CR) technology is an innovative radio design philosophy which aims to increase spectrum utilization by exploiting unused spectrum in dynamically changing...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—The IEEE 802.22 standard for wireless regional area network is the first standard for cognitive radio that tries to harness the idle or under-utilized spectrum allocated for TV...