A Covert Channel Using Event Channel State on Xen Hypervisor

2013 ◽  
pp. 125-134 ◽  
Author(s):  
Qingni Shen ◽  
Mian Wan ◽  
Zhuangzhuang Zhang ◽  
Zhi Zhang ◽  
Sihan Qing ◽  
...  
Keyword(s):  
Covert Channel ◽  
Channel State

Effect of CSI Imperfection on Cognitive Underlay Transmission over Nakagami-m Fading Channel

2015 ◽  
Vol 1 ◽  
pp. 59
Author(s):  
Nguyen Hong Giang ◽  
Vo Nguyen Quoc Bao ◽  
Hung Nguyen-Le
Keyword(s):  
Fading Channels ◽  
System Performance ◽  
Performance Metrics ◽  
Maximal Ratio Combining ◽  
Relay Nodes ◽  
Channel State ◽  
Primary Network ◽  
Secondary Network ◽  
System Designs ◽  
Approximate Expressions

This paper analyzes the performance of a cognitive underlay system over Nakagami-m fading channels, where maximal ratio combining (MRC) is employed at secondary destination and relay nodes. Under the condition of imperfect channel state information (CSI) of interfering channels, system performance metrics for the primary network and for the secondary network are formulated into exact and approximate expressions, which can be served as theoretical guidelines for system designs. To verify the performance analysis, several analytical and simulated results of the system performance are provided under various system and channel settings.

Covert channel detection in ICMP payload based on information entropy SVM

2009 ◽  
Vol 29 (7) ◽  
pp. 1796-1798
Author(s):  
Xiao-dong XU ◽  
Chuan-an WANG ◽  
Shi-rui ZHU
Keyword(s):  
Information Entropy ◽  
Covert Channel ◽  
Channel Detection ◽  
Covert Channel Detection

A Guide to Understanding Covert Channel Analysis of Trusted Systems

1993 ◽  
Author(s):  
GREATER SAN ANTONIO HOSPITAL COUNCIL TX
Keyword(s):  
Covert Channel ◽  
Channel Analysis
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