Satellite communication has become an important research trend in the field of communication technology. Low-orbit satellites have always been the focus of extensive attention by scholars due to their wide coverage, s...
详细信息
Satellite communication has become an important research trend in the field of communication technology. Low-orbit satellites have always been the focus of extensive attention by scholars due to their wide coverage, strong flexibility, and freedom from geographical constraints. This article introduces some technologies about low-orbit satellites and introduces a routing algorithm DDPG based on machine learning for simulation experiments. The performance of this algorithm is compared with the performance of three commonly used low-orbit satellite routing algorithms, and a conclusion is drawn. The routing algorithm based on machine learning has the smallest average delay, and the average value is 126 ms under different weights. Its packet loss rate is the smallest, with an average of 2.9%. Its throughput is the largest, with an average of 201.7 Mbps;its load distribution index is the smallest, with an average of 0.54. In summary, the performance of routing algorithms based on machine learning is better than general algorithms.
In this article, we present a challenge to the game-theoretical optimization of travel toward the fastest route, currently prevailing in most navigation systems. To do so, we depict the game-theoretical limitations of...
详细信息
This paper proposes the neural network-assisted routing strategy selection for the optical datacenter networks. Results reveal the high accuracy of strategy selection within the range of interested traffic load, valid...
详细信息
ISBN:
(纸本)9781943580828
This paper proposes the neural network-assisted routing strategy selection for the optical datacenter networks. Results reveal the high accuracy of strategy selection within the range of interested traffic load, validating feasibility of the proposed scheme. (C) 2020 The Author(s)
Ultrasonic method has been widely studied in the field of partial discharge location of power transformer. Previous studies mainly focused on solving the time difference of arrival (TDOA) equations by using different ...
详细信息
3-Dimensional Networks-on-Chip (3D NoC) have emerged as the promising solution for scalability, power consumption and performance demands of next generation Systems-on-Chip (SoCs) interconnect. Due to the cost in term...
详细信息
3-Dimensional Networks-on-Chip (3D NoC) have emerged as the promising solution for scalability, power consumption and performance demands of next generation Systems-on-Chip (SoCs) interconnect. Due to the cost in terms of thermal, yield, chip area and design complexity, minimizing the number of Through-Silicon-Via (TSVs) in 3D ICs has become on the most important design issues. In this paper, we will present several stable, simple and deadlock-free generic routing algorithms for 3D NoCs with different reduced vertical link density topologies, which can maintain the 3D NoCs performance and save the system cost (TSV number, chip area, system power, etc.). The experimental results have been extracted from our cycle-accurate GSNOC simulator and have shown that our routing algorithms can maintain the system performance up to reducing 50% of TSVs number in comparison to the 100% TSVs number with ZXY routing algorithm configuration. (C) 2013 Elsevier B.V. All rights reserved.
With the development of the vehicular network, BusNet based service is of great interest to both bus companies and public users. How to provide service and ensure service quality is considered as key points for the pr...
详细信息
ISBN:
(纸本)9781728173276
With the development of the vehicular network, BusNet based service is of great interest to both bus companies and public users. How to provide service and ensure service quality is considered as key points for the promotion of such kinds of applications. In this paper, a system architecture, which is designed based on Multi-access Edge Computing (MEC) architecture and software-defined network (SDN), is proposed. Moreover, considering the problem of the dynamicity of the network, a new routing path optimization algorithm, SPSO (serial particle swarm optimization), is proposed, while a dynamic weight matrix is used to improve routing performance. The comprehensive simulation results demonstrate that the proposed method can well adapt to the dynamic change of network topology, and improve communication performance significantly.
The Flying Ad Hoc Network (FANET) is a kind of mobile network which is composed of flying UAVs (Unmanned Aerial Vehicles) as network nodes. With the high node mobility and dynamic topology, data transmission in FANETs...
详细信息
The Flying Ad Hoc Network (FANET) is a kind of mobile network which is composed of flying UAVs (Unmanned Aerial Vehicles) as network nodes. With the high node mobility and dynamic topology, data transmission in FANETs is faced with severe challenges, such as unstable communication links and limited resources in the network. Due to the uncertainty of node encounters, data transmission is usually carried out by opportunistic transmission. However, the opportunistic delivery of data using multicopy routing not only consumes a large amount of network resources but also causes too much transmission overhead and low delivery quality. Thus, this paper designs a connectivity-based copy adaptive transmit routing algorithm (CCAT). Considering the network interruptions caused by high-speed node movement, CCAT makes packet forwarding decisions by estimating network connectivity and uses node transmit prediction value as forwarding utility value to control the number of copies of packets. Simulation results show that the delivery rate of CCAT can be improved by about 30% at the peak compared with traditional multicopy routing strategies and the transmission latency of CCAT is minimal.
The proliferation of deepfake videos, synthetic media produced through advanced Artificial Intelligence techniques, has raised significant concerns across various sectors, encompassing realms such as politics, enterta...
详细信息
Most of the existing performance evaluation studies of various routing algorithms are done under limited experimental setups leading to an incomplete picture of the routing algorithm performance under dynamic network ...
详细信息
ISBN:
(纸本)9781728156842
Most of the existing performance evaluation studies of various routing algorithms are done under limited experimental setups leading to an incomplete picture of the routing algorithm performance under dynamic network conditions. This paper presents a study that compares state-of-the-art routing algorithms over realistic multimedia-based Software Defined Networks (SDNs) with dynamic network conditions and various topology. routing algorithms remain a key element of the networking landscape as they determine the path the data packets follow. The next-generation networking paradigm offers wide advantages over traditional networks through simplifying the management layer, especially with the adoption of SDN. However, Quality of Service (QoS) provisioning still remains a challenge that needs to be investigated especially for multimedia-based SDNs. This study investigates the impact of state-of-the-art centralized routing algorithms (e.g. MHA, WSP, SWP, MIRA) on multimedia QoS traffic under a realistic environment in terms of PSNR, Throughput, Packet Loss, Delay and QoS rejection.
To ensure high availability, datacenter networks must rely on local fast rerouting mechanisms that allow routers to quickly react to link failures, in a fully decentralized manner. However, configuring these mechanism...
详细信息
暂无评论