.png){kind=icon}
返回
Multibit-Quantization-Based Collaborative Spectrum Sensing Scheme for Cognitive Sensor Networks
.png){kind=icon}
OA
AI
DOI：10.1109/ACCESS.2017.2767101.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
In order to overcome the bandwidth limitations of common control channels, we introduce a multibit quantization scheme to preprocess raw measurements in a collaborative spectrum sensing (CoSS) scheme. After quantifying the raw measurement, the cognitive sensors (CSs) send the multibit sensing information to a sink node (SN), which makes a final decision by using a soft decision fusion rule. In order to better understand the effects of quantization parameters on collaborative spectrum sensing in a cognitive sensor network (CSN), we discuss the following two problems: the average error probability minimum problem (AEPMP) and throughput maximum problem. By identifying the number of quantization bits, number of CSs, and global decision threshold, we can discuss some design considerations for the multibit-quantization-based CoSS scheme. A closed-form expression for the optimal global decision threshold is derived in the process of analyzing the AEPMP. Furthermore, an iterative algorithm with low complexity is proposed to find the optimal parameters for maximizing the throughput of a CSN under a target detection probability constraint. Finally, we investigate the impact of optimized parameters on the system performance of a CSN. Our theoretical analysis is verified through numerical simulations.
Keyword:
Multibit-quantization
collaborative spectrum sensing
soft decision fusion
average error probability
throughput
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
机构
引用论文
.png){kind=icon}
Group-Based Multibit Cooperative Spectrum Sensing for Cognitive Radio Networks认知无线电网络中基于组的多比特协作频谱感知
PREAI
分享收藏EFFECT OF DIFFERENT CLASSES OF LIPID- LOWERING THERAPY ON HDL CHOLESTEROL LEVEL IN PATIENTS WITH NON-DIALYSIS-DEPENDENT CKD不同类别降脂疗法对非透析依赖性CKD患者HDL胆固醇水平的影响
PREAI
分享收藏
查看更多内容