Multi-parameter performance analysis for decentralized cognitive radio networks

被引：0
|
作者：
Xenakis, Dionysis [1 ]
Passas, Nikos [1 ]
Merakos, Lazaros [1 ]
机构：
[1] Univ Athens, Dept Informat & Telecommun, Athens 15784, Greece
来源：
WIRELESS NETWORKS | 2014年 / 20卷 / 04期
关键词：
Cognitive radio; Decentralized networks; User activity; Interface switching; Channel fading; Adaptive modulation and coding; Performance analysis; MAC;
D O I：
10.1007/s11276-013-0635-4
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we investigate the impact of primary user activity, secondary user activity, interface switching, channel fading and finite-length queuing on the performance of decentralized cognitive radio networks. The individual processes of these service-disruptive effects are modeled as Markov chains based on cross-layer information locally available at the network nodes. A queuing analysis is conducted and various performance measures are derived regarding the packet loss, throughput, spectral efficiency, and packet delay distribution. Numerical results demonstrate the impact of various system parameters on the system performance, providing insights for cross-layer design and autonomous decision making in decentralized cognitive radio networks.
引用
收藏
页码：787 / 803
页数：17
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