An Adaptive Stopping Rule for Distributed Opportunistic Spectrum Access Systems with Multi-channel and Multi-user
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Yunpeng Cheng
,
Yumeng Wang
Abstract
This paper studies the channel exploration problem for the distributed opportunistic spectrum access (D-OSA) systems, where multiple secondary users (SUs) sequentially sense multiple licensed channels and access one of idle channels. SUs operate on a frame-by-frame basis and need to sense channels at the beginning of each frame. According to the stopping rule, SUs determine to stop at the sensed channel or continue to sense next channels. However, the optimal design in the scenario of multiple SUs with the multiple licensed channels is difficult to realize for D-OSA systems. To solve this problem, we introduce an adjusted function considering the interactions among SUs, and then propose an adaptive stopping rule to improve the performance of the multi-user system. Simulation results are provided to show the effectiveness of the adaptive stopping rule and the significant improvement of the throughput performance.
©2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Frontmatter
- Performance Analysis of Cooperative Fixed-Gain Relaying over Asymmetric Fading Channels
- Sensing-throughput Trade off for Interference-aware Cognitive Radio Networks
- Improved Cyclostationary-Based Spectrum Sensing with Multiple Antennas in Fading and Shadowing Environments
- Distortion Range Determination Methodology
- A New Model of CFAR Detector
- Novel Teletraffic Analysis of GSM/EDGE Orthogonal Sub Channel (OSC) and Application to Spectrum Re-farming
- The Influence of the Number of Relay Antennas on the Secure DoF with Active Cooperation
- Relay Management in Energy-aware Cooperative Ad Hoc Networks: A Perspective of Stochastic Game
- Comparison of the Influence of Intra-cell Traffic and Finite Number of Mobile Phones on the Determination of Number of Channels in the BTS of GSM Network
- Approximate Message Passing Algorithms for Distributed Iterative Receiver
- An Adaptive Stopping Rule for Distributed Opportunistic Spectrum Access Systems with Multi-channel and Multi-user
- Defense against Lion Attack in Cognitive Radio Systems using the Markov Decision Process Approach
Articles in the same Issue
- Frontmatter
- Performance Analysis of Cooperative Fixed-Gain Relaying over Asymmetric Fading Channels
- Sensing-throughput Trade off for Interference-aware Cognitive Radio Networks
- Improved Cyclostationary-Based Spectrum Sensing with Multiple Antennas in Fading and Shadowing Environments
- Distortion Range Determination Methodology
- A New Model of CFAR Detector
- Novel Teletraffic Analysis of GSM/EDGE Orthogonal Sub Channel (OSC) and Application to Spectrum Re-farming
- The Influence of the Number of Relay Antennas on the Secure DoF with Active Cooperation
- Relay Management in Energy-aware Cooperative Ad Hoc Networks: A Perspective of Stochastic Game
- Comparison of the Influence of Intra-cell Traffic and Finite Number of Mobile Phones on the Determination of Number of Channels in the BTS of GSM Network
- Approximate Message Passing Algorithms for Distributed Iterative Receiver
- An Adaptive Stopping Rule for Distributed Opportunistic Spectrum Access Systems with Multi-channel and Multi-user
- Defense against Lion Attack in Cognitive Radio Systems using the Markov Decision Process Approach
