Physical Layer Security for Cooperative Multihop Routing in Wireless Networks

Anish Prasad Shrestha, S. M. Riazul Islam, Rajendra Dhakal, Kyung Sup Kwak

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


Physical layer (PHY) security that is based on information-theoretic secrecy has recently emerged as an alternative option for traditional cryptographic techniques to secure wireless networks. In this paper, we study the problems related to routing scheme along with PHY security for a multihop wireless network so that full diversity can be achieved at each hop. We propose a hop-by-hop best relay selection for the multihop ad-hoc wireless network consisting several relays at each hop in presence of an eavesdropper such that a secure routing scheme to transmit a confidential message from transmitter to legitimate receiver is achieved. The selection is performed considering the instantaneous channel conditions of relay as well as eavesdropper at each hop. We derive a closed form expressions for the probability of non-zero secrecy capacity along with end to end probability of secrecy outage at a normalized secrecy rate. Moreover, we provide an asymptotic expression to gain insights on the diversity gain.

Original languageEnglish
Title of host publication2019 IEEE 9th Annual Computing and Communication Workshop and Conference, CCWC 2019
EditorsSatyajit Chakrabarti, Himadri Nath Saha
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781728105543, 9781728105536
ISBN (Print)9781728105550
Publication statusPublished - 14 Mar 2019
Externally publishedYes
Event9th IEEE Annual Computing and Communication Workshop and Conference - Las Vegas, United States
Duration: 7 Jan 20199 Jan 2019
Conference number: 9


Conference9th IEEE Annual Computing and Communication Workshop and Conference
Abbreviated titleCCWC 2019
Country/TerritoryUnited States
CityLas Vegas


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