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MOBIHOC
2007
ACM
14 years 3 months ago
Allocating dynamic time-spectrum blocks in cognitive radio networks
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Thomas ...
EJWCN
2010
157views more  EJWCN 2010»
12 years 11 months ago
Distributed Power Allocation for Parallel Broadcast Channels with Only Common Information in Cognitive Tactical Radio Networks
A tactical radio network is a radio network in which a transmitter broadcasts the same information to its receivers. In this paper, dynamic spectrum management is studied for multi...
Vincent Le Nir, Bart Scheers
JSAC
2011
171views more  JSAC 2011»
12 years 7 months ago
QoS Provisioning for Heterogeneous Services in Cooperative Cognitive Radio Networks
—In this paper, we propose a spectrum allocation framework that jointly considers the Quality-of-Service (QoS) provisioning for heterogeneous secondary Real-Time (RT) and Non-Rea...
Ammar Alshamrani, Xuemin (Sherman) Shen, Liang-Lia...
JSAC
2011
185views more  JSAC 2011»
12 years 11 months ago
Joint Dynamic Resource Allocation and Waveform Adaptation for Cognitive Networks
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...
Zhi Tian, Geert Leus, Vincenzo Lottici
VTC
2006
IEEE
13 years 10 months ago
Effects of Bit Allocation on Non-Contiguous Multicarrier-Based Cognitive Radio Transceivers
— In this paper, we evaluate a cognitive radio transceiver employing both non-contiguous multicarrier modulation (NC-MCM) and adaptive bit allocation. Although NCMCM and bit allo...
Alexander M. Wyglinski