112 search results - page 4 / 23 » Adaptive Bandwidth Allocation Scheme for Cognitive Radios |
ISCC
2006
IEEE
13 years 11 months ago
2006
IEEE
— In this paper, we propose an adaptive capacity allocation scheme at the call level for a blocked call cleared loss system. The scheme aims to maintain the connection blocking p...
TSP
2010
13 years 15 days ago
2010
In this paper, an adaptive cooperation diversity scheme with best-relay selection is proposed for multiple-relay cognitive radio networks to improve the performance of secondary tr...
MOBICOM
2009
ACM
14 years 9 days ago
2009
ACM
There has been burgeoning interest in wireless technologies that can use wider frequency spectrum. Technology advances, such as 802.11n and ultra-wideband (UWB), are pushing towar...
GLOBECOM
2008
IEEE
13 years 6 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 ...
JSAC
2011
13 years 23 days ago
2011
This paper investigates the issue of dynamic resource allocation (DRA) in the context of multiuser cognitive radio networks. We present a general framework adopting generalized si...