Opportunistic Spectrum Access in Unknown Dynamic Environment: A Game-Theoretic Stochastic Learning Solution
نویسندگان
چکیده
منابع مشابه
Enabling opportunistic and dynamic spectrum access through learning techniques
The expected shortage in spectrum supply is well understood to be primarily due to the inefficient, static nature of current spectrum allocation policies. In order to address this problem, FCC promotes the so-called Opportunistic Spectrum Access (OSA) to be applied on Cognitive Radio Networks (CRNs). In short, the idea behind OSA is allowing unlicensed users to use unused licensed spectra as lo...
متن کاملDynamic Spectrum Sharing by Opportunistic Spectrum Access with Spectrum Aggregation
The rapid growth of wireless services and the breakneck proliferation of wireless devices continue to strain limited spectrum resource. While the need for efficient spectrum sharing mechanisms has been emphasised, opportunistic spectrum access has been considered as a promising mechanism for dynamic spectrum sharing. However, although the idle spectrum could exist, it is usually rather fragment...
متن کاملOpportunistic Spectrum Access Learning Proof of Concept
This paper presents the results of first ever implementation of learning algorithm for opportunistic spectrum access (OSA) in lab conditions. The OSA scheme consists of two USRP N210 platforms, one acting as primary users of a primary network and another as secondary user. Primary user network generates carriers with a pre-defined probability of occupancy through an OFDM modulation scheme imple...
متن کاملEvolutionary Game and Learning for Dynamic Spectrum Access
Efficient dynamic spectrum access mechanism is crucial for improving the spectrum utilization. In this paper, we consider the dynamic spectrum access mechanism design with both complete and incomplete network information. When the network information is available, we propose an evolutionary spectrum access mechanism. We use the replicator dynamics to study the dynamics of channel selections, an...
متن کاملPrimary user emulation attack in dynamic spectrum access networks: a game-theoretic approach
Cognitive radio enabled dynamic spectrum access networks are designed to detect and opportunistically utilize the unused or under-utilized spectrum bands. However, due to the open paradigm of cognitive radio networks and lack of proactive security protocols, the dynamic spectrum access networks are vulnerable to various denial-ofservice (DoS) threats. In this paper, we propose a game theoretic ...
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 Wireless Communications
سال: 2012
ISSN: 1536-1276
DOI: 10.1109/twc.2012.020812.110025