Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114924
M. Doan, Zhanyang Zhang
The year of 2020 is critical for global implementation of 5G wireless networks. While enjoying a whole new level of user experience in 5G networks, such as high data rate, low latency and virtually everything to everything connections, the ever growing diversity, complexity of network and data traffics impose a set of new challenges for effectively operating and managing 5G networks. As our daily lives are more dependent on mobile devices and apps, so does the cyber security risk and venerability increase. Many of the algorithms, protocols and practices used to safeguard 4G networks fall short for 5G networks without degrading the performance expected for 5G networks. In this paper we report our early research results of using deep learning algorithms for anomaly detection in 5G network while minimizing the impacts to network latency. We developed a prototype model using U-Net and conducted a simulation experiment with a well known botnet dataset to evaluate the suitability and performance.
{"title":"Deep Learning in 5G Wireless Networks - Anomaly Detections","authors":"M. Doan, Zhanyang Zhang","doi":"10.1109/WOCC48579.2020.9114924","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114924","url":null,"abstract":"The year of 2020 is critical for global implementation of 5G wireless networks. While enjoying a whole new level of user experience in 5G networks, such as high data rate, low latency and virtually everything to everything connections, the ever growing diversity, complexity of network and data traffics impose a set of new challenges for effectively operating and managing 5G networks. As our daily lives are more dependent on mobile devices and apps, so does the cyber security risk and venerability increase. Many of the algorithms, protocols and practices used to safeguard 4G networks fall short for 5G networks without degrading the performance expected for 5G networks. In this paper we report our early research results of using deep learning algorithms for anomaly detection in 5G network while minimizing the impacts to network latency. We developed a prototype model using U-Net and conducted a simulation experiment with a well known botnet dataset to evaluate the suitability and performance.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127474507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114940
Yajiang Li, J. Xin, Teng Sun
Green light pulse lasers have many applications in various fields, and the tunable pulse width of the laser will provide additional parameters for optimizing the effect of the applications. Therefore, in this paper, the characteristics of a frequency-doubled 532 nm solid-state laser with a tunable pulse width were examined in an experiment in which a proposed four-pass optical laser amplifier was employed. The results showed that, for a 1064 nm wavelength laser with pulse widths ranging from 0.55 ns to 1.4 ns, the frequency-doubled 532 nm wavelength laser pulse width was compressed in the ratio of 1.39 to 1.05. The rising and falling edges of the frequency-doubled pulse became steeper.
{"title":"Characteristics of A Frequency-doubled Solid-state Laser with Tunable Pulse Width","authors":"Yajiang Li, J. Xin, Teng Sun","doi":"10.1109/WOCC48579.2020.9114940","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114940","url":null,"abstract":"Green light pulse lasers have many applications in various fields, and the tunable pulse width of the laser will provide additional parameters for optimizing the effect of the applications. Therefore, in this paper, the characteristics of a frequency-doubled 532 nm solid-state laser with a tunable pulse width were examined in an experiment in which a proposed four-pass optical laser amplifier was employed. The results showed that, for a 1064 nm wavelength laser with pulse widths ranging from 0.55 ns to 1.4 ns, the frequency-doubled 532 nm wavelength laser pulse width was compressed in the ratio of 1.39 to 1.05. The rising and falling edges of the frequency-doubled pulse became steeper.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116088367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114929
Matthew Henschke, Xinzhou Wei, Xiaowen Zhang
A data visualization proposition for wireless sensor networks (WSNs) is presented in this paper. WSNs play a pivotal role in the composition of Internet of Things (IoT) systems. In an IoT system, the data accumulated by nodes with distinct sensors can be used to monitor environmental conditions such as temperature and humidity. With this data, efforts can be taken to improve the comfort of people in these environments. There exist circumstances where directly connecting the data collected in the WSNs to the Internet may not always be economic efficient. Moreover, we propose a scheme that utilizes both open source hardware and software for data collection at the nodes of a WSN where it is visualized using an online IoT platform known as ThingsBoard.
{"title":"Data Visualization for Wireless Sensor Networks Using ThingsBoard","authors":"Matthew Henschke, Xinzhou Wei, Xiaowen Zhang","doi":"10.1109/WOCC48579.2020.9114929","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114929","url":null,"abstract":"A data visualization proposition for wireless sensor networks (WSNs) is presented in this paper. WSNs play a pivotal role in the composition of Internet of Things (IoT) systems. In an IoT system, the data accumulated by nodes with distinct sensors can be used to monitor environmental conditions such as temperature and humidity. With this data, efforts can be taken to improve the comfort of people in these environments. There exist circumstances where directly connecting the data collected in the WSNs to the Internet may not always be economic efficient. Moreover, we propose a scheme that utilizes both open source hardware and software for data collection at the nodes of a WSN where it is visualized using an online IoT platform known as ThingsBoard.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122514152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114918
Jian Song, Tian Cao, Hongming Zhang
Successive interference cancellation (SIC) decoding scheme is commonly utilized in nonorthogonal multiple access (NOMA) scheme to obtain the data of each user under different channel conditions at acceptable complexity. However, the imperfect SIC would lead to error propagation (EP) problem, deteriorating the error performance of the NOMA scheme. In this work, a SIC-free NOMA scheme is proposed in the pulse modulation-based visible light communication (VLC) systems with two users. The user under worse channel condition adopts on-off keying (OOK) and the other employs multiple pulse position modulation (MPPM). Here, we employ the soft decision decoding (SDD) scheme to decode the MPPM signal of the user under the better channel condition, which could fundamentally alleviate the adverse impact of EP on symbol error rate (SER) performance and is easier and faster to implement than the traditional SIC decoding scheme. The expressions of SER for two users are derived and the Monte Carlo (MC) simulation results are further provided to validate analytical results.
在非正交多址(NOMA)方案中，通常采用连续干扰消除(SIC)译码方案，以在可接受的复杂度下获取不同信道条件下每个用户的数据。然而，不完善的SIC会导致误差传播(EP)问题，降低了NOMA方案的误差性能。本文提出了一种基于脉冲调制的双用户可见光通信(VLC)系统中无sic的NOMA方案。信道条件较差的用户采用开关键控(OOK)，另一种采用多脉冲位置调制(MPPM)。本文采用软判决译码(soft decision decoding, SDD)方案在较好的信道条件下对用户的MPPM信号进行译码，可以从根本上缓解EP对符号误码率(SER)性能的不利影响，并且比传统的SIC译码方案更容易、更快地实现。推导了两种用户的SER表达式，并给出了Monte Carlo (MC)仿真结果来验证分析结果。
{"title":"A low complexity NOMA scheme in VLC systems using pulse modulations (invited paper)","authors":"Jian Song, Tian Cao, Hongming Zhang","doi":"10.1109/WOCC48579.2020.9114918","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114918","url":null,"abstract":"Successive interference cancellation (SIC) decoding scheme is commonly utilized in nonorthogonal multiple access (NOMA) scheme to obtain the data of each user under different channel conditions at acceptable complexity. However, the imperfect SIC would lead to error propagation (EP) problem, deteriorating the error performance of the NOMA scheme. In this work, a SIC-free NOMA scheme is proposed in the pulse modulation-based visible light communication (VLC) systems with two users. The user under worse channel condition adopts on-off keying (OOK) and the other employs multiple pulse position modulation (MPPM). Here, we employ the soft decision decoding (SDD) scheme to decode the MPPM signal of the user under the better channel condition, which could fundamentally alleviate the adverse impact of EP on symbol error rate (SER) performance and is easier and faster to implement than the traditional SIC decoding scheme. The expressions of SER for two users are derived and the Monte Carlo (MC) simulation results are further provided to validate analytical results.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124544945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114926
Kefeng Wei, Lincong Zhang, Lei Guo
Due to the massive development of the wearable technology and widespread use of wearable devices, the Wearable Wireless Sensor Network (WWSN)-based Internet of Medical Things (IoMT) has appeared to become a hot research topic. In WWSN-based IoMT, the users equipped with wearable wireless sensors moving at their will raises a challenge to the routing. Routing algorithms in WWSN proposed by previous works mainly cover the energy consumption of nodes and network delay. However, seldom works pay close attention to the link stability, which is a vital parameter of the network performance. In fact, the mobility of user equipped with wearable sensor nodes can severely influence the link stability. In addition, to ensure the information safety during packet forwarding, the credibility of node is concerned in this paper. We propose a routing algorithm based on credibility and stability (RACS), with taking link maintenance time, the node congestion, the residual energy of node, the credibility of node, and path length into consideration. The routing path with the maximum credibility and stability (CS) is selected as the optimal path. Simulation results show that the proposed RACS algorithm outperforms better in packet forwarding rate, which indicates that the routing path is more stable than others. Meanwhile, the performance of RACS algorithm in terms of energy consumption and delay is close to the other two algorithms. Therefore, the proposed algorithm can provide higher credibility and stability for WWSN-based IoMT.
{"title":"Routing Algorithm with High Credibility and Stability (RACS) in WWSN-based Internet of Medical Things","authors":"Kefeng Wei, Lincong Zhang, Lei Guo","doi":"10.1109/WOCC48579.2020.9114926","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114926","url":null,"abstract":"Due to the massive development of the wearable technology and widespread use of wearable devices, the Wearable Wireless Sensor Network (WWSN)-based Internet of Medical Things (IoMT) has appeared to become a hot research topic. In WWSN-based IoMT, the users equipped with wearable wireless sensors moving at their will raises a challenge to the routing. Routing algorithms in WWSN proposed by previous works mainly cover the energy consumption of nodes and network delay. However, seldom works pay close attention to the link stability, which is a vital parameter of the network performance. In fact, the mobility of user equipped with wearable sensor nodes can severely influence the link stability. In addition, to ensure the information safety during packet forwarding, the credibility of node is concerned in this paper. We propose a routing algorithm based on credibility and stability (RACS), with taking link maintenance time, the node congestion, the residual energy of node, the credibility of node, and path length into consideration. The routing path with the maximum credibility and stability (CS) is selected as the optimal path. Simulation results show that the proposed RACS algorithm outperforms better in packet forwarding rate, which indicates that the routing path is more stable than others. Meanwhile, the performance of RACS algorithm in terms of energy consumption and delay is close to the other two algorithms. Therefore, the proposed algorithm can provide higher credibility and stability for WWSN-based IoMT.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124539101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114952
I. Roudas, X. Jiang, J. Kwapisz
The nonlinear Gaussian-noise (GN) model is a useful analytical tool for the estimation of the impact of distortion due to Kerr nonlinearity on the performance of coherent optical communications systems with no inline dispersion compensation.The original nonlinear GN model was formulated for coherent optical communications systems with identical single-mode fiber spans. Since its inception, the original GN model has been modified for a variety of link configurations. However, its application to coherent optical communications systems with hybrid fiber spans, each composed of multiple fiber segments with different attributes, has attracted scarcely any attention.This invited paper is dedicated to the extended nonlinear GN model for coherent optical communications systems with hybrid fiber spans. We review the few publications on the topic and provide a unified formalism for the analytical calculation of the nonlinear noise variance.To illustrate the usefulness of the extended nonlinear GN model, we apply it to coherent optical communications systems with fiber spans composed of a quasi-single-mode fiber segment and a single-mode fiber segment in tandem. In this configuration, a quasi-single-mode fiber with large effective area is placed at the beginning of each span, to reduce most of the nonlinear distortion, followed by a single-mode fiber segment with smaller effective-area, to limit the multipath interference introduced by the quasi-single-mode fiber to acceptable levels. We show that the optimal fiber splitting ratio per span can be calculated with sufficient accuracy using the extended nonlinear GN model for hybrid fiber spans presented here.
{"title":"Nonlinear GN model for coherent optical communications systems with hybrid fiber spans","authors":"I. Roudas, X. Jiang, J. Kwapisz","doi":"10.1109/WOCC48579.2020.9114952","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114952","url":null,"abstract":"The nonlinear Gaussian-noise (GN) model is a useful analytical tool for the estimation of the impact of distortion due to Kerr nonlinearity on the performance of coherent optical communications systems with no inline dispersion compensation.The original nonlinear GN model was formulated for coherent optical communications systems with identical single-mode fiber spans. Since its inception, the original GN model has been modified for a variety of link configurations. However, its application to coherent optical communications systems with hybrid fiber spans, each composed of multiple fiber segments with different attributes, has attracted scarcely any attention.This invited paper is dedicated to the extended nonlinear GN model for coherent optical communications systems with hybrid fiber spans. We review the few publications on the topic and provide a unified formalism for the analytical calculation of the nonlinear noise variance.To illustrate the usefulness of the extended nonlinear GN model, we apply it to coherent optical communications systems with fiber spans composed of a quasi-single-mode fiber segment and a single-mode fiber segment in tandem. In this configuration, a quasi-single-mode fiber with large effective area is placed at the beginning of each span, to reduce most of the nonlinear distortion, followed by a single-mode fiber segment with smaller effective-area, to limit the multipath interference introduced by the quasi-single-mode fiber to acceptable levels. We show that the optimal fiber splitting ratio per span can be calculated with sufficient accuracy using the extended nonlinear GN model for hybrid fiber spans presented here.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132002837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114915
B. Comar
This paper discusses the performance of an LDPC code classification system. Three randomly generated binary LDPC codes are created, all having the same codeword size and coderate. Multi-scaled convolutional neural networks are employed to classify codeword streams. High classification accuracies are obtained with relatively small networks.
{"title":"LDPC Code Classification using Convolutional Neural Networks","authors":"B. Comar","doi":"10.1109/WOCC48579.2020.9114915","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114915","url":null,"abstract":"This paper discusses the performance of an LDPC code classification system. Three randomly generated binary LDPC codes are created, all having the same codeword size and coderate. Multi-scaled convolutional neural networks are employed to classify codeword streams. High classification accuracies are obtained with relatively small networks.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128258332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114920
T. Cunha, J. Linnartz, X. Deng
Plastic optical fiber (POF) is considered as an attractive candidate for next-generation networks, for fiber-to the-home or for fronthaul of wireless access points in offices. Inside such spaces, visible light communication (VLC) can be an attractive interference-free communication approach. Such system can offer high data rates with potential cost reduction compared to existing techniques. Wavelength division multiplexing (WDM) can not only increase the link capacity, but also offers the ability to share the POF media with multiple services. In VLC systems, WDM can increase capacity. However, the use of narrow emitters and narrow bandpass filters to demultiplex the WDM signals are relative costly components in such systems. This work focuses on inexpensive light emitting diodes (LEDs), to accelerate mass-market applications, and we explore the potential for relaxing the wavelength filters at the detector. In these scenarios, multiple-input multiple-output (MIMO) technology can efficiently suppress interference or automatically fall back to common signalling if the crosstalk is so large that parallel channels would be insufficiently independent. We calculate the MIMO crosstalk channel coefficients due to relatively wide LED spectra. We derive analytical expressions for the maximum achievable rate of the system and we conclude that relatively large amount of crosstalk can be tolerated without jeopardizing performance, provided that dedicated signal processing is used. We show that without such signal processing, the choice of optical filters is very critical.
{"title":"Throughput of Optical WDM with Wide LED Spectra and Imperfect Color-detecting Filters","authors":"T. Cunha, J. Linnartz, X. Deng","doi":"10.1109/WOCC48579.2020.9114920","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114920","url":null,"abstract":"Plastic optical fiber (POF) is considered as an attractive candidate for next-generation networks, for fiber-to the-home or for fronthaul of wireless access points in offices. Inside such spaces, visible light communication (VLC) can be an attractive interference-free communication approach. Such system can offer high data rates with potential cost reduction compared to existing techniques. Wavelength division multiplexing (WDM) can not only increase the link capacity, but also offers the ability to share the POF media with multiple services. In VLC systems, WDM can increase capacity. However, the use of narrow emitters and narrow bandpass filters to demultiplex the WDM signals are relative costly components in such systems. This work focuses on inexpensive light emitting diodes (LEDs), to accelerate mass-market applications, and we explore the potential for relaxing the wavelength filters at the detector. In these scenarios, multiple-input multiple-output (MIMO) technology can efficiently suppress interference or automatically fall back to common signalling if the crosstalk is so large that parallel channels would be insufficiently independent. We calculate the MIMO crosstalk channel coefficients due to relatively wide LED spectra. We derive analytical expressions for the maximum achievable rate of the system and we conclude that relatively large amount of crosstalk can be tolerated without jeopardizing performance, provided that dedicated signal processing is used. We show that without such signal processing, the choice of optical filters is very critical.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128725526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114916
Wei Mao, Murali Narasimha, M. Simsek, Hosein Nikopour
5G new radio (NR) requires a very dense deployment of cellular infrastructure, which poses a great economical challenge if traditional fiber backhaul links are used. To cope with this problem, 3GPP introduced integrated access and backhaul (IAB), aiming to use wireless backhaul to provide high capacity and great deployment flexibility. The multi-hop and multi-route topology for this new type of access networks challenges the existing retransmission-/repetition-based reliability-enhancing technique, such as ARQ/HARQ and packet duplication. However, it also opens up new opportunities for novel reliability enhancement techniques. In this paper, taking advantage of the more complex network topology of IAB, we propose to use linear network coding as a potentially better solution to improve end-to-end latency and reliability. We discuss its placement in the IAB protocol stack, and propose two novel schemes to improve the performance of network coding in the IAB network: the rate-proportional traffic splitting scheme in the multi-route scenario, and the adaptive coded-forwarding scheme in the multi-hop scenario. Simulation results show that in some typical IAB scenarios our network coding solution has considerable performance gains over the existing repetition-based technology.
{"title":"Network Coding for Integrated Access and Backhaul Wireless Networks","authors":"Wei Mao, Murali Narasimha, M. Simsek, Hosein Nikopour","doi":"10.1109/WOCC48579.2020.9114916","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114916","url":null,"abstract":"5G new radio (NR) requires a very dense deployment of cellular infrastructure, which poses a great economical challenge if traditional fiber backhaul links are used. To cope with this problem, 3GPP introduced integrated access and backhaul (IAB), aiming to use wireless backhaul to provide high capacity and great deployment flexibility. The multi-hop and multi-route topology for this new type of access networks challenges the existing retransmission-/repetition-based reliability-enhancing technique, such as ARQ/HARQ and packet duplication. However, it also opens up new opportunities for novel reliability enhancement techniques. In this paper, taking advantage of the more complex network topology of IAB, we propose to use linear network coding as a potentially better solution to improve end-to-end latency and reliability. We discuss its placement in the IAB protocol stack, and propose two novel schemes to improve the performance of network coding in the IAB network: the rate-proportional traffic splitting scheme in the multi-route scenario, and the adaptive coded-forwarding scheme in the multi-hop scenario. Simulation results show that in some typical IAB scenarios our network coding solution has considerable performance gains over the existing repetition-based technology.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127554438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-01DOI: 10.1109/WOCC48579.2020.9114925
Ang Gao, Tianli Geng, Yansu Hu, Wei Liang, Weijun Duan
UAV cloud which integrates the flexibility and re-silience of mobile cloud computing (MCC) with multiple UAV system provides drones the ability of processing compute-intensive application by offloading task to cloud. However, such task with heterogeneous quality of experience (QoE) requirement generated by massive drones becomes a troublesome burden for cloud resource allocation. Especially the endurance issue related to the energy efficiency makes the problem more complicated. This paper proposes a game theory based decentralized continuous offloading algorithm. Each drone in the UAV cloud optimizes the percentage of offloading task executed at cloud, while minimizes its overhead composed by QoE requirement and energy consumption. This algorithm can be proved to a potential game that can reach a bilateral satisfaction Nash Equilibrium (NE) by finite iteration. Numerical results under various scenario corroborate not only the effectiveness and stability of the proposed continuous offloading game, but also the superiority of computation complexity and communication overhead.
{"title":"Decentralized Continuous Game for Task Offloading in UAV Cloud","authors":"Ang Gao, Tianli Geng, Yansu Hu, Wei Liang, Weijun Duan","doi":"10.1109/WOCC48579.2020.9114925","DOIUrl":"https://doi.org/10.1109/WOCC48579.2020.9114925","url":null,"abstract":"UAV cloud which integrates the flexibility and re-silience of mobile cloud computing (MCC) with multiple UAV system provides drones the ability of processing compute-intensive application by offloading task to cloud. However, such task with heterogeneous quality of experience (QoE) requirement generated by massive drones becomes a troublesome burden for cloud resource allocation. Especially the endurance issue related to the energy efficiency makes the problem more complicated. This paper proposes a game theory based decentralized continuous offloading algorithm. Each drone in the UAV cloud optimizes the percentage of offloading task executed at cloud, while minimizes its overhead composed by QoE requirement and energy consumption. This algorithm can be proved to a potential game that can reach a bilateral satisfaction Nash Equilibrium (NE) by finite iteration. Numerical results under various scenario corroborate not only the effectiveness and stability of the proposed continuous offloading game, but also the superiority of computation complexity and communication overhead.","PeriodicalId":187607,"journal":{"name":"2020 29th Wireless and Optical Communications Conference (WOCC)","volume":"19 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123620942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：