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|Title: ||The Capacity Analysis in the Secure Cooperative Communication System|
|Authors: ||黃明祥;J. S. Chen;Jong-Shin Chen;C. Y. Yang;Cheng-Ying Yang|
|Issue Date: ||2017-12-08 14:48:08 (UTC+8)|
|Abstract: ||With the characteristic of spatial diversity and low cost,
cooperative system is a tendency for the future communications.
In the wireless communication system, there
exist degradation factors such as signal fading, multipath
transmission, signal inferences, bandwidth limitation and
so on. In addition to these degradation factors, the wireless
transmission is not a secure environment. The information
might be leaked during the transmission. Currently,
the issues of privacy and security have become increasingly
important for the mobile users. Traditionally,
the security scheme is applied to the higher network layer.
Encryption can be complex and difficult without infrastructure.
It is not suitable to apply to the equipment with
low computing resources, such as Internet of Things (IoT)
application. Within information theoretic security characterizes
the fundamental ability of the physical layer to
provide a secure transmission. Hence, this work concentrates
on the secure cooperative communication system.
Based on the Shannon third theorem on channel capacity,
this work analyzes the secrecy capacity between the
source station and the destination station. For a practical
situation in the system, the scenario includes multiple
source stations, multiple relay stations, multiple destination
stations, and eavesdroppers. For the positive secrecy
rate consideration, the maximum mutual information between
the source station and the destination station and
the minimum mutual information between the source station
and the eavesdropper should be held. To ensure
a secure communication, the derived theoretical solution
could be applied to find the optimal relay assignment. Beyond
the relay selection, some issues related to the secure
cooperative communication are suggested for the future
researches in the final.
|Relation: ||International Journal of Network Security|
|Appears in Collections:||[資訊工程學系] 期刊論文|
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