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GLOBECOM
2010
IEEE
13 years 4 months ago
Maximize Secondary User Throughput via Optimal Sensing in Multi-Channel Cognitive Radio Networks
In a cognitive radio network, the full-spectrum is usually divided into multiple channels. However, due to the hardware and energy constraints, a cognitive user (also called second...
Shimin Gong, Ping Wang, Wei Liu, Wei Yuan
ICC
2007
IEEE
160views Communications» more  ICC 2007»
14 years 1 months ago
Adaptive Game-Based Radio Spectrum Allocation in Doubly Selective Fading Channels
— For cognitive radio networks, a popular approach to dynamic spectrum allocation (DSA) is game theoretic, which improves spectrum efficiency in a distributed manner. In a doubl...
Duo Zhang, Zhi Tian
MOBICOM
2009
ACM
13 years 11 months ago
Understanding cross-band interference in unsynchronized spectrum access
We consider the problem of cross-band interference when devices from the same or different networks share radio spectrum. Cross-band interference occurs when unsynchronized trans...
Wei Hou, Lei Yang, Lin Zhang, Xiuming Shan, Heathe...
WICON
2008
13 years 8 months ago
A graph based routing algorithm for multi-hop cognitive radio networks
Cognitive radio networks that allow dynamic spectrum access are considered spectrally more efficient than networks using fixed spectral allocation. These networks are characterize...
Yogesh Reddy Kondareddy, Prathima Agrawal
ICC
2009
IEEE
233views Communications» more  ICC 2009»
14 years 1 months ago
Detecting Primary User Emulation Attacks in Dynamic Spectrum Access Networks
— In this paper, we present an analytical model as well as a practical mechanism to detect denial of service (DoS) attacks on secondary users in dynamic spectrum access (DSA) net...
Z. Jin, S. Anand, K. P. Subbalakshmi