Information and Energy Cooperation in Cognitive Radio Networks
نویسندگان
چکیده
منابع مشابه
On Energy-optimal Cooperation Strategy in Cognitive Radio Networks
Taking into account the overall energy consumption during consecutive processes of opportunistic spectrum access in cognitive radio networks, including sensing locally, reporting sensing results and transmitting data, etc., an energy efficient cooperation strategy is investigated in this paper. First, we formulate the energy-efficient cooperation problem for two special scenarios with SUs in di...
متن کاملCooperation-based Routing in Cognitive Radio Networks
Primary user activity is a major bottleneck for existing routing protocols in cognitive radio networks. Typical routing protocols avoid areas that are highly congested with primary users, leaving only a small fragment of available links for secondary route construction. In addition, wireless links are prone to channel impairments such as multipath fading; which renders the quality of the availa...
متن کاملGlobally Optimal Cooperation in Dense Cognitive Radio Networks
The problem of calculating the local and global decision thresholds in hard decisions based cooperative spectrum sensing is well known for its mathematical intractability. Previous work relied on simple suboptimal counting rules for decision fusion in order to avoid the exhaustive numerical search required for obtaining the optimal thresholds. However, these simple rules are not globally optima...
متن کاملCooperation Scheme For Distributed Spectrum Sensing In Cognitive Radio Networks
Spectrum sensing is an essential phase in cognitive radio networks (CRNs). It enables secondary users (SUs) to access licensed spectrum, which is temporarily not occupied by the primary users (PUs). The widely used scheme of spectrum sensing is cooperative sensing, in which an SU shares its sensing results with other SUs to improve the overall sensing performance, while maximizing its throughpu...
متن کاملPerformance Improvement of the Cognitive Radio Networks with User Cooperation
The cognitive radio has been considered as a promising paradigm to achieve efficient spectrum usage by allowing the coexistence of the primary and cognitive radio networks. One fundamental challenge is to ensure the quality of service (QoS) of the primary link while maximizing the achievable transmission rate of the cognitive radio user. In this paper, we investigate the cooperation based spect...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 2014
ISSN: 1053-587X,1941-0476
DOI: 10.1109/tsp.2014.2310433