scholarly journals Efficient reliable communication over partially authenticated networks

Author(s):  
Amos Beimel ◽  
Lior Malka
Author(s):  
Chafik Arar ◽  
Mohamed Salah Khireddine

The paper proposes a new reliable fault-tolerant scheduling algorithm for real-time embedded systems. The proposed algorithm is based on static scheduling that allows to include the dependencies and the execution cost of tasks and data dependencies in its scheduling decisions. Our scheduling algorithm is dedicated to multi-bus heterogeneous architectures with multiple processors linked by several shared buses. This scheduling algorithm is considering only one bus fault caused by hardware faults and compensated by software redundancy solutions. The proposed algorithm is based on both active and passive backup copies to minimize the scheduling length of data on buses. In the experiments, the proposed methods are evaluated in terms of data scheduling length for a set of DSP benchmarks. The experimental results show the effectiveness of our technique.


1993 ◽  
Vol 40 (5) ◽  
pp. 1087-1107 ◽  
Author(s):  
Alan Fekete ◽  
Nancy Lynch ◽  
Yishay Mansour ◽  
John Spinelli

Author(s):  
Soumyashree S. Panda ◽  
Debasish Jena ◽  
Bhabendu Kumar Mohanta ◽  
Srikanta Patnaik

Author(s):  
Chafik Arar

In this article, the author uses a new variant of passive redundancy, which allows for a fictitious dual assignment by simultaneously scheduling two backup copies that overlap on the same communication bus at a given time. The proposed reliable fault tolerant greedy list scheduling algorithm is based on a superposed backup copy. This scheduling algorithm is considering up to n communication buses faults, caused by hardware faults and compensated by software redundancy solutions. it allows a reliable communication and efficient use of buses. In the experiments, the proposed methods are evaluated in terms of data scheduling length for a set of DSP benchmarks from the DSPstone.


2016 ◽  
Vol 4 (2) ◽  
pp. 151-158
Author(s):  
Tae-Ho Cho ◽  
Garam-Moe Jeon

Most devices in the Internet of Things (IoT) utilize WiMAX communication, and Femtocells are used to provide reliable communication by eliminating shaded areas where wireless signals become weaker with distance and underground facilities. One downfall of this method is the possibility of eavesdropping through Man-in-the-Middle attacks. Forced latency interlock protocol is used to detect these attacks. This protocol uses a fixed latency value and does not consider packet size and distance. In this paper, we propose a dynamic delay time decision method for reducing the fixed delay time of the forced latency interlock protocol in wireless communications based on the IoT. The evaluation function considers the distance between the device, the packet size, and the bit rate of the broadband internet. The simulation experiments demonstrate the validity of our method, which reduces delay time by an average of 88.19% and increases detection rate by an average of 7.97%.


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