This paper proposes an Authentication Interworking Protocol （AIP） based on IEEE 802.21 Medi Independent Handover （MIH） in the heterogeneous networks. The proposed AIP with the RSA-based proxy signature reduces han...This paper proposes an Authentication Interworking Protocol （AIP） based on IEEE 802.21 Medi Independent Handover （MIH） in the heterogeneous networks. The proposed AIP with the RSA-based proxy signature reduces handover delay time and communication message overhead when the mobile node moves between the heterogeneous networks. It defines new AlP Type Length Value （AlP TLV） in MIH frame format and uses the MIH Information Server （MIHIS） for issuing signature. The MIHIS can generate a signature on behalf of the AAA server and then the signature can he used by mobile node for a pre-authentication. For low handover delay, the proposed AIP performs pre-authentication processes with MIP protocol before layer 2 handover. Also, this paper analyses the performance of the handover and compares with the non-secure MIH.展开更多
Today,lightweight virtualization technologies have been widely deployed on data centers and HPC clusters to provide highly efficient and elastic resource provisioning.Virtualization has also been extended to the I/O s...Today,lightweight virtualization technologies have been widely deployed on data centers and HPC clusters to provide highly efficient and elastic resource provisioning.Virtualization has also been extended to the I/O stack in operating system.For example,virtual switch has become the primary provider of I/O services for data movement among various light-weight virtual machines,such as Docker and Kubernetes.However,I/O stack virtualization introduces performance degradation and scalability bottleneck to the data movements of HPC computing framework,such as MPI based collective data movements and bursty asynchronous data movements.In order to study the bottleneck,we quantify and analyze the performance degradation involving with HPC data movements on virtual clusters.Then,we design a set of two-stage methods to proactively adapt the virtual network and data movement procedures.This can enhance the performance of HPC collective data movements by up to 3×.Meanwhile,a cross-layer middleware is designed to improve the performance and scalability of bursty asynchronous data movements.Our evaluation shows that it can improve the performance of real scientific application by 34.6%.展开更多
基金supported by the Korea Science and Engineering Foundation(KOSEF)grant funded by the Korea government(MEST)(No.2010-0000100)the Ubiquitous Computing and Network(UCN)project,knowledge and economy frontier R&D program of the Ministry of Knowledge Economy(MKE)in Korea and a result of subproject10C2-C1-20S
文摘This paper proposes an Authentication Interworking Protocol （AIP） based on IEEE 802.21 Medi Independent Handover （MIH） in the heterogeneous networks. The proposed AIP with the RSA-based proxy signature reduces handover delay time and communication message overhead when the mobile node moves between the heterogeneous networks. It defines new AlP Type Length Value （AlP TLV） in MIH frame format and uses the MIH Information Server （MIHIS） for issuing signature. The MIHIS can generate a signature on behalf of the AAA server and then the signature can he used by mobile node for a pre-authentication. For low handover delay, the proposed AIP performs pre-authentication processes with MIP protocol before layer 2 handover. Also, this paper analyses the performance of the handover and compares with the non-secure MIH.
基金supported by National Key R&D Program of China under Grant No.2018YFB0204303,NSFC U1811461Guangdong Natural Science Foundation 2018B030312002the Major Program of Guangdong Basic and Applied Research 2019B030302002.
文摘Today,lightweight virtualization technologies have been widely deployed on data centers and HPC clusters to provide highly efficient and elastic resource provisioning.Virtualization has also been extended to the I/O stack in operating system.For example,virtual switch has become the primary provider of I/O services for data movement among various light-weight virtual machines,such as Docker and Kubernetes.However,I/O stack virtualization introduces performance degradation and scalability bottleneck to the data movements of HPC computing framework,such as MPI based collective data movements and bursty asynchronous data movements.In order to study the bottleneck,we quantify and analyze the performance degradation involving with HPC data movements on virtual clusters.Then,we design a set of two-stage methods to proactively adapt the virtual network and data movement procedures.This can enhance the performance of HPC collective data movements by up to 3×.Meanwhile,a cross-layer middleware is designed to improve the performance and scalability of bursty asynchronous data movements.Our evaluation shows that it can improve the performance of real scientific application by 34.6%.
