The wireless spectrum demand is at a constant rise in contrast to its scarcity. Cognitive
Radio Networks (CRN's) as a notion was first brought into the light to tackle this issue. A …

In multi-user cooperative cognitive network, the primary user and cognitive user can not
share the same spectrum band simultaneously, which leads to low spectrum utilization …

在传统认知网络中, 认知用户只能接入主要用户的空闲频带, 而不能同时与主要用户共享带宽.
为了更有效地利用频谱资源, 提出一种容量最优机会干扰对齐接入算法. 在保证主要用户信道 …

Spectrum auction is an effective way to improve spectrum efficiency in cognitive networks.
All traditional auction framework such as VCG price auction framework and second price …

In cognitive network, these exists primary users and cognitive users. Both of those kinds of
users want to occupy the same frequency band simultaneously. This paper proposed a new …

Cognitive radio technology has received wide attention for its ability to sense and use idle
frequency. IEEE 802.22 WRAN, the first to follow the standard in cognitive radio technology …