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.
|Title of host publication
|2019 IEEE 9th Annual Computing and Communication Workshop and Conference, CCWC 2019
|Satyajit Chakrabarti, Himadri Nath Saha
|Institute of Electrical and Electronics Engineers Inc.
|Number of pages
|Published - 14 Mar 2019
|9th IEEE Annual Computing and Communication Workshop and Conference - Las Vegas, United States
Duration: 7 Jan 2019 → 9 Jan 2019
Conference number: 9
|9th IEEE Annual Computing and Communication Workshop and Conference
|7/01/19 → 9/01/19