193 search results - page 10 / 39 » Addressing the Dynamic Range Problem in Cognitive Radios |
JSAC
2011
12 years 10 months ago
2011
—Cognitive radio is a promising paradigm to achieve efficient utilization of spectrum resource by allowing the unlicensed users (i.e., secondary users, SUs) to access the licens...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
— Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent tra...
CN
2004
13 years 7 months ago
2004
Abstract-- In this paper, we perform the first comprehensive study of the multicast address allocation problem. We analyze this problem both within its context as a classic resourc...
JSAC
2008
13 years 7 months ago
2008
A cognitive radio can sense its environment and adapt some of its features, such as carrier frequency, transmission bandwidth, transmission power, and modulation, thus allowing dyn...
JSAC
2008
13 years 7 months ago
2008
Abstract--Radio spectrum resource is of fundamental importance for wireless communication. Recent reports show that most available spectrum has been allocated. While some of the sp...