A Stable Backup Routing Protocol for Wireless Ad Hoc Networks

Zhang, Fan; Yang, Gangqiang

doi:10.3390/s20236743

Cited by 9 publications

(8 citation statements)

References 25 publications

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“…This feature allows the module to implement single-channel or dual-radio DSRC systems. The RF subsystem has the possibility of transmission through antenna-type ports built separately for 5.9 GHz frequency bands with an inclined finish on the ends of the module to cover a wide area [45,46]. RF outputs are plotted through separate Rx and Tx pins (receiver and transmitter) capable of communication in the case of the 760 MHz and 2.4 GHz frequency bands.…”

Section: Experimental Evaluation Simulation and Resultsmentioning

confidence: 99%

The Utility of DSRC and V2X in Road Safety Applications and Intelligent Parking: Similarities, Differences, and the Future of Vehicular Communication

Zadobrischi

Dimian

Negru

2021

Sensors

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As the technological advancement in the automotive field increases and the complexity of vehicle and infrastructure applications is extremely high, new directions and approaches are needed in this field. Supporting and developing vehicular applications dedicated to road safety by analyzing the current behavior of existing networks in various forms is imperative. This paper studies and implements a DSRC-type communications infrastructure that receives a set of controllable and adjustable indicators, which can provide messages to network drivers in a timely manner. The implementation is based on the 802.11p protocol and initially addresses pedestrian infrastructure or pedestrian safety, controlled areas, and perimeters that allow intelligent communications. The design and setting of the communication parameters in the lower layer of the DSRC stack for vehicle applications are part of this work, aspects that are also relevant in the case of autonomous vehicles.

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Section: Experimental Evaluation Simulation and Resultsmentioning

confidence: 99%

The Utility of DSRC and V2X in Road Safety Applications and Intelligent Parking: Similarities, Differences, and the Future of Vehicular Communication

Zadobrischi

Dimian

Negru

2021

Sensors

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“…For the convenience, it is assumed that the slot size of each node is set to 1, i.e., s c,i (k) = 1, for ∀i and ∀k. As shown in Figure 4, ES i (p, n) shows different aspects for each p c,i (1) and pc,j (1) and is maximized when p c,i (1) is 1 or 0, and it appears differently depending on pc,j (1).…”

Section: Variable Description a Imentioning

confidence: 98%

“…Likewise, ES becomes its maximum at p c,i (t, 1) = 0 or 1 depending on pc,j (1). As mentioned earlier, it is not possible for a i to know pc,j (1). The method to estimate pc,j (1) is explained in Section 3.3 as one of our proposed methods in this paper.…”

Section: Variable Description a Imentioning

confidence: 99%

“…From the Proposition and Equation (20), p c,i (1) is determined. Then, it calls Neighbor Change-Prob() to update pc,i (2) using pc,i (1).…”

Section: Ext-desync Tdma With Optimal Criterion Of Firing Phase Changementioning

confidence: 99%

“…Mobile Ad-hoc Networks (MANETs) have features to enable dynamic network configuration and to support data delivery between mobile nodes without infrastructure, as in tactical or disaster environments [1,2]. Since multiple mobile nodes share channels, Medium Access Control (MAC) protocols play key roles in managing and operating MANETs.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Strategy to Change Firing Phases of Collided Nodes in Extended-Desync TDMA-Based MANETs

Lee

Roh

2021

Sensors

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As a multi-hop extension of the desynchronization-based TDMA (Desync-TDMA), the extended Desync-TDMA (Ext-Desync) with self-adapting property is proposed to overcome the limitations of existing CSMA/CA and dynamic TDMA-based schemes for Mobile Ad-hoc Networks (MANETs). However, existing studies overlooked the potential problem of firing message collisions caused by node movements, leading to the severe degradation of MANET networking performance. In this paper, we derive a mathematical model to evaluate the problem due to collisions of firing messages for moving nodes. With the derived model, we propose a method for a collided node to determine whether it changes its firing phase or not, adaptively in a distributed manner, by considering both the collision situation and the slot utilization. The comparative analysis between the proposed method and existing representative ones is also presented for various networking features. The performances of the proposed method are compared with CSMA/CA as well as other existing Ext-Desync-based schemes. The numerical results show that the proposed method achieved much faster resolution and higher slot utilization in collision situations than other Ext-Desync-based schemes. In addition, we also show that the proposed method outperformed the comparable methods, including CSMA/CA, in terms of packet delivery ratios and end-to-end delays.

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A Cross-Layer Solution for Contention Control to Enhance TCP Performance in Wireless Ad-Hoc Networks

et al. 2023

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With the development of wireless technology, users not only have wireless access to the Internet, but this has also sparked the emergence of Wireless Ad-hoc Networks (WANETs); this promising networking paradigm has the potential to adopt the shape of new emergent networks such as the Internet of Things (IoT), Vehicular Ad-hoc Networks (VANET) and Wireless Sensor Networks (WSN). However, channel contention (CC) is one of the key reasons why the TCP performs poorly in WANETs. This paper presents a mechanism called Cross-layer Solution for Contention Control (CSCC) to enhance TCP performance in WANETs. Each node starts marking packets in the proposed mechanism when its CC level reaches a certain threshold. As a result, the source node adjusts the congestion window (cwnd) size to a good state to control the insertion ratio of packets into the network. To provide a fair share to each flow, the flow having a large cwnd is penalized more. Numerous simulations have been conducted across several topologies to clarify the performance of the suggested mechanism. The simulation findings show that, in the presence of the Ad-hoc On-demand Distance Vector (AODV) routing and Dynamic Source Routing (DSR) protocols, the proposed CSCC mechanism outperformed TCP NewReno in terms of throughput and fairness. In comparison to TCP NewReno, the suggested mechanism has fewer retransmitted packets.

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A Stable Backup Routing Protocol for Wireless Ad Hoc Networks

Cited by 9 publications

References 25 publications

The Utility of DSRC and V2X in Road Safety Applications and Intelligent Parking: Similarities, Differences, and the Future of Vehicular Communication

The Utility of DSRC and V2X in Road Safety Applications and Intelligent Parking: Similarities, Differences, and the Future of Vehicular Communication

Adaptive Strategy to Change Firing Phases of Collided Nodes in Extended-Desync TDMA-Based MANETs

A Cross-Layer Solution for Contention Control to Enhance TCP Performance in Wireless Ad-Hoc Networks

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