Journal of High Speed Networks - Volume 26, issue 4

Authors: Nasseralfoghara, Mehrdad | Hamidi, HamidReza

Article Type: Research Article

Abstract: The application nature of HTTP protocol allows the creation of a covert timing channel based on different features of this protocol (or different levels) that has not been addressed in previous research. In this article, the entropy-based detection method was designed and implemented. The attacker can adjust the amount of channel entropy by controlling measures such as changing the channel’s level or creating noise on the channel to protect from the analyzer’s detection. As a result, the entropy threshold is not always constant for detection. By comparing the entropy from different levels of the channel and the analyzer, we concluded …that the analyzer must investigate traffic at all possible levels. We also illustrated that by making noise on a covert channel, its capacity would decrease, but as entropy increases, it would be harder to detect it. Show more

Keywords: Information security, convert channel, timing channel, WEB, entropy

DOI: 10.3233/JHS-200642

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 255-266, 2020

Authors: Singh, Alok | Sharma, Saurabh | Srivastava, Rajneesh K.

Article Type: Research Article

Abstract: NS-3 has been one of the popular network simulator software for many years especially in research related to Mobile Adhoc Networks (MANETs). In NS-3, there is provision of several mobility models including Random Waypoint (RWP) mobility model and Steady State Random Waypoint (SSRWP) mobility model. RWP mobility model suffers from the transition phase related imperfection. SSRWP mobility model overcomes this limitation of RWP mobility by allowing the steady state initialization states of nodes in terms of position, speed and pause time of mobile nodes right from the beginning of the simulation. As SSRWP mobility model avoids any requirement of warm-up …(cut-off) phase of RWP mobility model, it saves a significant amount of time of warm-up (cut-off) phase as well as establishes a high level of confidence in results obtained due to absence of any subjective guess. In the present work, RWP and SSRWP mobility models have been investigated using AODV routing protocol and it has been found that a way to mitigate the misleading effect of the transition phase of RWP mobility model is to have a sufficiently large simulation time which results, to a good extent, in convergence of performance of RWP mobility model toward that of SSRWP mobility model. Show more

Keywords: AODV, mobility model, Random Waypoint Mobility Model, Steady State Random Waypoint Mobility Model, NS-3

DOI: 10.3233/JHS-200643

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 267-274, 2020

Authors: Sataraddi, Mamata J. | Kakkasageri, Mahabaleshwar S.

Article Type: Research Article

Abstract: VANET is mainly aimed at providing safety and security related information and traffic management. In future, VANET contributes to smart transportation system. Based on vehicle mobility, different routing protocols and traffic models were developed. In routing, trust between vehicles place an important role to forward safety related information. This paper aims at design of trust and delay based routing for hybrid communication in sparse VANET to avoid network attacks by malicious nodes. The proposed hybrid routing protocol works on the computation of trust in between vehicles and message reachable time (MRT). Route selection is done by considering the highest trust …factor and minimum MRT. The performance effectiveness of the proposed scheme is evaluated by comparing with the Delay-aware and Backbone-based Geographic Routing for Urban VANETs (DBGR). The proposed scheme exhibits better performance in terms of packet delivery ratio, bandwidth utilization, end-to-end delay and control overheads. Show more

Keywords: Vehicular Ad hoc Network (VANET), Vehicle-to-Vehicle Communication (V2V), Vehicle-to-Infrastructure Communication (V2I)

DOI: 10.3233/JHS-200644

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 275-290, 2020

Authors: Prajapati, Monali | Joshi, Dr. Jay

Article Type: Research Article

Abstract: In the wireless sensor network (WSN), wireless communication is said to be the dominant power-consuming operation and it is a challenging one. Virtual Multiple-Input–Multiple-Output (V-MIMO) technology is considered to be the energy-saving method in the WSN. In this paper, a novel multihop virtual MIMO communication protocol is designed in the WSN via cross-layer design to enhance the energy efficiency, reliability, and end-to-end (ETE) and Quality of Service (QoS) provisioning. On the basis of the proposed protocol, the optimal set of parameters concerning the transmission and the overall consumed energy by each of the packets is found. Furthermore, the modeling of …ETE latency and throughput of the protocol takes place with respect to the bit-error-rate (BER). A novel hybrid optimization algorithm referred as Flight Straight Moth Updated Particle Swarm Optimization (FS-MUP) is introduced to find the optimal BER that meets the QoS, ETE requirements of each link with lower power consumption. Finally, the performance of the proposed model is evaluated over the extant models in terms of Energy Consumption and BER as well. Show more

Keywords: WSN, virtual MIMO, energy efficiency, BER performance, quality of service

DOI: 10.3233/JHS-200645

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 291-306, 2020

Authors: Nehnouh, Chakib

Article Type: Research Article

Abstract: The Network-on-Chip (NoC) has become a promising communication infrastructure for Multiprocessors-System-on-Chip (MPSoC). Reliability is a main concern in NoC and performance is degraded when NoC is susceptible to faults. A fault can be determined as a cause of deviation from the desired operation of the system (error). To deal with these reliability challenges, this work propose OFDIM (Online Fault Detection and Isolation Mechanism),a novel combined methodology to tolerate multiple permanent and transient faults. The new router architecture uses two modules to assure highly reliable and low-cost fault-tolerant strategy. In contrast to existing works, our architecture presents less area, more fault …tolerance, and high reliability. The reliability comparison using Silicon Protection Factor (SPF), shows 22-time improvement and that additional circuitry incurs an area overhead of 27%, which is better than state-of-the-art reliable router architectures. Also, the results show that the throughput decreases only by 5.19% and minor increase in average latency 2.40% while providing high reliability. Show more

Keywords: Network on chip, online test, fault tolerance, error, reliability

DOI: 10.3233/JHS-200646

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 307-323, 2020

Authors: Radha, S. | Bala, G. Josemin | Kanaga, E. Grace Mary | Nagabushanam, P.

Article Type: Research Article

Abstract: False data detection, intrusion detection and coverage rate are major challenges in wireless sensor networks (WSN). Scheduling in media access control (MAC) using gateway and relay nodes solve some of the problems. In this paper, we carried out a brief survey on scheduling, delay aware MAC, cooperative communications in MAC, and adaptive listening to keep controlling the energy in sensors. In addition, multichannel MAC and various routing strategy techniques for WSN are discussed. Firefly algorithm for dynamic scheduling pipelined scheduling for linear sensor networks gives better throughput and latency. Heuristic configuration solves the overhearing problem, as node power-based MAC controls …power of each node. Based on WSN applications and the performance metrics concentrated, various techniques for MAC are discussed throughout in this paper. Show more

Keywords: Scheduling, adaptive listening, cooperative communication, wireless sensor networks (WSN), multichannel MAC, pipelined MAC

DOI: 10.3233/JHS-200647

Citation: Journal of High Speed Networks, vol. 26, no. 4, pp. 325-338, 2020