Overlay Multicast Protocol with Proxy Districts for Dynamic Wireless Sensor Networks

Author(s):  
Soochang Park ◽  
Noel Crespi ◽  
Seungmin Oh ◽  
Sang-Ha Kim
Computers ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 27 ◽  
Author(s):  
Matthias Carlier ◽  
Kris Steenhaut ◽  
An Braeken

This paper presents a new key management protocol for group-based communications in non-hierarchical wireless sensor networks (WSNs), applied on a recently proposed IP-based multicast protocol. Confidentiality, integrity, and authentication are established, using solely symmetric-key-based operations. The protocol features a cloud-based network multicast manager (NMM), which can create, control, and authenticate groups in the WSN, but is not able to derive the actual constructed group key. Three main phases are distinguished in the protocol. First, in the registration phase, the motes register to the group by sending a request to the NMM. Second, the members of the group calculate the shared group key in the key construction phase. For this phase, two different methods are tested. In the unicast approach, the key material is sent to each member individually using unicast messages, and in the multicast approach, a combination of Lagrange interpolation and a multicast packet are used. Finally, in the multicast communication phase, these keys are used to send confidential and authenticated messages. To investigate the impact of the proposed mechanisms on the WSN, the protocol was implemented in ContikiOS and simulated using COOJA, considering different group sizes and multi-hop communication. These simulations show that the multicast approach compared to the unicast approach results in significant smaller delays, is a bit more energy efficient, and requires more or less the same amount of memory for the code.


2011 ◽  
Vol 15 (12) ◽  
pp. 1320-1322 ◽  
Author(s):  
Euisin Lee ◽  
Soochang Park ◽  
Jeongcheol Lee ◽  
Sang-Ha Kim

2012 ◽  
Vol E95-B (4) ◽  
pp. 1419-1422
Author(s):  
Euisin LEE ◽  
Soochang PARK ◽  
Jeongcheol LEE ◽  
Sang-Ha KIM

2011 ◽  
Vol 15 (12) ◽  
pp. 1291-1293 ◽  
Author(s):  
Hosung Park ◽  
Jeongcheol Lee ◽  
Soochang Park ◽  
Seungmin Oh ◽  
Sang-Ha Kim

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