Distributed Ad Hoc Cooperative Routing in Cluster-Based Multihop Networks

2011 ◽  
Vol E94-B (2) ◽  
pp. 444-454
Author(s):  
I-Te LIN ◽  
Iwao SASASE
Keyword(s):  
Ad Hoc ◽  
Multihop Networks ◽  
Cooperative Routing

scholarly journals Enjoy the Benefit of Network Coding: Combat Pollution Attacks in 5G Multihop Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Jian Li ◽  
Tongtong Li ◽  
Jian Ren ◽  
Han-Chieh Chao
Keyword(s):  
Network Coding ◽  
Error Detection ◽  
Error Control ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Multihop Networks ◽  
Performance Gain ◽  
Malicious Attacks ◽  
Ldpc Decoding ◽  
Pollution Attacks

In the upcoming 5G era, many new types of networks will greatly expand the connectivity of the world such as vehicular ad hoc networks (VANETs), Internet of Things (IoT), and device-to-device communications (D2D). Network coding is a promising technology that can significantly improve the throughput and robustness of these emerging 5G multihop networks. However, network coding is generally very fragile to malicious attacks such as message content corruption and node compromise attacks. To take advantage of network coding in performance gain while refraining malicious network attacks is an interesting and challenging research issue. In this paper, we propose a new error-detection and error-correction (EDEC) scheme that can jointly detect and remove the malicious attacks based on the underlying error-control scheme for general multihop networks that can model the 5G multihop networks. The proposed scheme can increase the throughput for network with pollution attacks compared to existing error-detection based schemes. Then we propose a low-density parity check (LDPC) decoding based EDEC (LEDEC) scheme. Our theoretical analysis demonstrates that the LEDEC scheme can further increase the throughput for heavily polluted network environments. We also provide extensive performance evaluation and simulation results to validate the proposed schemes. This research ensures the expected performance gain for the application of network coding in the 5G network under malicious pollution attacks.

A Cooperative Routing Algorithm to Increase QoS in Wireless E-Healthcare Systems

2013 ◽  
pp. 375-387 ◽  
Author(s):  
Sabato Manfredi
Keyword(s):  
Wireless Network ◽  
Network Performance ◽  
Ad Hoc ◽  
Networked Control Systems ◽  
Routing Algorithm ◽  
Future Generation ◽  
Healthcare Systems ◽  
Ad Hoc Routing ◽  
Cooperative Routing ◽  
Systems Architectures

The recent increased interest in distributed and flexible wireless pervasive applications has drawn great attention to WNCS (Wireless Networked Control Systems) architectures based on WSANs (Wireless Sensor and Actuator Networks) and the resulting Quality of Service obtained in specific applications. Particularly, in wireless E-Healthcare systems based on WSANs, providing certain QoS specifications is crucial for the actuators as they perform actions based on the vital data received from sensors. This chapter is concerned with the performance evaluation of a cooperative routing algorithm QBAR (Queue Based Ad hoc Routing algorithm) for wireless E-Healthcare systems. Simulations have been carried out in order to quantify the impact of the proposed algorithm on the overall network performance, and a comparison with the existing AODV algorithm is presented. The algorithm performances are validated by the Matlab/Simulink-based simulator, TrueTime, which facilitates the co-simulation of controller task execution in real-time kernels and in a wireless network environment. The simulation results highlight that “cooperation” strategies between wireless healthcare devices can strongly improve the reliability of the wireless network, and hence, they are suitable and rewarding for the management of the future generation of E-Healthcare systems.

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