{"title":"The Application of Multi-Agent Reinforcement Learning in UAV Networks","authors":"Jingjing Cui, Yuanwei Liu, A. Nallanathan","doi":"10.1109/ICCW.2019.8756984","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756984","url":null,"abstract":"This article investigates autonomous resource allocation of multiple UAVs enabled communication networks with the goal of maximizing long-term rewards. To model the uncertainty of environments, we formulate the long-term resource allocation problem as a stochastic game, where each UAV becomes a learning agent and each resource allocation solution corresponds to an action taken by the UAVs. Furthermore, we propose a multi-agent reinforcement learning (MARL) framework that each agent discovers its best strategy according to its local observations using learning. More specifically, we propose an agent-independent method, for which all agents conduct a decision algorithm independently but share a common structure based on Q-learning. Finally, simulation results reveal that the proposed MARL algorithm provides acceptable performance compared to the case with complete information exchanges among UAVs.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865848","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}
J. M. B. D. Silva, A. Sabharwal, Gábor Fodor, C. Fischione
{"title":"Low Resolution Phase Shifters Suffice for Full-Duplex mmWave Communications","authors":"J. M. B. D. Silva, A. Sabharwal, Gábor Fodor, C. Fischione","doi":"10.1109/ICCW.2019.8756743","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756743","url":null,"abstract":"Full-duplex base-stations with half-duplex nodes, allowing simultaneous uplink and downlink from different nodes, have the potential to double the spectrum efficiency without adding additional complexity at mobile nodes. Hybrid beam-forming is commonly used in millimeter wave systems for its implementation efficiency. An important element of hybrid beam-forming is quantized phase shifters. In this paper, we ask if low-resolution phase shifters suffice for beamforming-based full-duplex millimeter wave systems. We formulate the problem of joint design for both self-interference suppression and downlink beamforming as an optimization problem, which we solve using penalty dual decomposition to obtain a near-optimal solution. Numerical results indicate that low-resolution phase shifters can perform close to systems that use infinite phase shifter resolution, and that even a single quantization bit outperforms half-duplex transmissions in both low and high residual self-interference scenarios.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116039461","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}
{"title":"Blockchain-Driven Contents Sharing Strategy for Wireless Cache-Enabled D2D Networks","authors":"Huan Cui, Zhiyong Chen, Ning Liu, Bin Xia","doi":"10.1109/ICCW.2019.8757177","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8757177","url":null,"abstract":"Caching and sharing contents among mobile devices via wireless device-to-device (D2D) communications is a promising way to offload data traffic. In order to encourage more content sharing among mobile devices, we propose a blockchain incentive scheme in this paper, where the base station (BS) can allocate computing power to mine blockchain in a period of time and give this mining profit to the mobile devices that share contents with others via D2D communication. In order to maximize the total profit, we develop the caching placement schemes considering different relationships between the allocated computing power and the shared data size. For the linear relationship, we can obtain the closed form expression of the optimal caching scheme and find that the mobile device prefers to cache the popular contents. For the nonlinear relationship, the optimal problem can be effectively solved by difference of convex (DC) programming and the results reveal that the mobile device prefers to caching different contents.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132625536","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}
{"title":"Achievable Rate Bounds on Poisson Channel with a Sample-Based Practical Photon-Counting Receiver","authors":"Zhimeng Jiang, Chen Gong, Guanchu Wang, Zhengyuan Xu","doi":"10.1109/ICCW.2019.8757168","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8757168","url":null,"abstract":"We investigate the achievable rate for a practical receiver under on-off keying modulation based on Kullback-Leibler (KL) divergence and Chernoff α-divergence. The asymptotic tightness of the derived bounds is analyzed for large symbol duration and large or low peak power. We prove the tightness of the derived bounds for large symbol duration, large peak power with zero background radiation with exponential convergence rate, and for low peak power of order two. Moreover, we propose an approximation on the achievable rate in the low background radiation and medium symbol duration regime, which is more accurate compared with the derived upper and lower bounds in the medium signal to noise ratio (SNR) regime. The proposed bounds and the approximations are evaluated by the numerical results.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133663361","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}
{"title":"Impact of Analog Precoding Types on the Spectral Efficiency of Millimeter Wave Hybrid Beamforming Systems","authors":"Pan Tang, Jian-hua Zhang, Lei Tian","doi":"10.1109/ICCW.2019.8757086","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8757086","url":null,"abstract":"Large antenna arrays can provide beamforming gain to overcome the high pathloss in millimeter wave channels. In this paper, we investigate the impact of analog precoding types on the spectral efficiency of millimeter wave hybrid beamforming (HBF) systems. In analog precoding, we consider the strongest path precoder, the Liang's precoder [1] and the Yu's precoder [2]. The spectral efficiency is calculated for varying signal-to-noise ratio (SNR) and numbers of radio-frequency (RF) chains. Also, we consider two cases where users are close or far away. In addition, the array pattern with these analog precoders are investigated. These investigations give an insight into the gains of HBF.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127135739","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}
{"title":"Dynamic Hand Gesture Detection and Recognition with WiFi Signal Based on 1D-CNN","authors":"Xuan-qi Pan, Ting Jiang, Xudong Li, Xue Ding, Yangyang Wang, Yanan Li","doi":"10.1109/ICCW.2019.8756690","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756690","url":null,"abstract":"Due to the rapid development of Internet of Things (IoT) technology and artificial intelligence, there is an urgent need for human-computer interaction (HCI) applications. The dynamic hand gesture recognition technology based on WiFi signal plays an important role. However, although the gesture recognition system using Channel State Information (CSI) has made great progress, we have observed that in the current research, most commercial network cards can not directly extract such signals, and the easily acquired received signal strength (RSS) can only recognize simple gestures. Therefore, in this paper, we present a universal framework to achieve dynamic hand gesture detection and recognition with RSS. We use RSS from multiple independent WiFi nodes to increase the upper limit of recognize capability, enabling the system to recognize seven complex dynamic hand gestures. The false trigger detection algorithm effectively eliminates the false triggers, and the detection accuracy is close to 91.38%. The system uses a state machine and a linear scale algorithm to accommodate different hand gesture speed with durations ranging from 0.9s to 5.4s. Furthermore, we analyze the errors of the detection algorithm and propose a recognition architecture based on One Dimension Convolutional Neural Network (1D-CNN) and two data collection strategies: gesture extending and gesture shifting. The proposed 1D-CNN effectively overcomes the error caused by hand gesture detection algorithm and the recognition accuracy reaches 86.91%. Combined with the gesture shifting strategy, the recognition accuracy is further improved to 93.03%.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125009076","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}
Ramez Askar, Fabian Undi, Rodrigo Silva Rezende, M. Peter, W. Keusgen
{"title":"Polarimetric Characterization of Sub-6-GHz Self-Interference Indoor Radio Channels","authors":"Ramez Askar, Fabian Undi, Rodrigo Silva Rezende, M. Peter, W. Keusgen","doi":"10.1109/ICCW.2019.8756646","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756646","url":null,"abstract":"To obtain a better understanding of full-duplex wireless systems, this paper studies the behavior of the self-interference radio channels. It presents a physical model of the self-interference radio channel that splits the channel into two segments — a quasi-static direct-coupling-based and a dynamic backscatter-caused. Self-interference channel measurements were performed in a modern-office indoor environment. Additionally, the antenna direct-coupling component is measured in a semi-anechoic chamber. The captured measurement data are used to characterize three orthogonally-coexisting polarimetric self-interference channel components — two co-polarized and one cross-polarized. One gigahertz of sounding bandwidth, which occupies 2-to-3-GHz frequency band, is used to measure the self-interference channels. A dually-polarized-magnetoelectric-dipole antenna is utilized to observe the self-interference backscatter channels; the antenna possesses a hemispherical radiation pattern and an excellent cross-polarization discrimination property. Both incident and reflected RF wave quantities — captured by means of a vector network analyzer on the two ports of the antenna — have been used to acquire a channel knowledge of all three polarimetric components. Instantaneous and averaged power-delay profiles of the measured polarimetric self-interference channels are presented. Moreover, statistical parameters of indoor de-embedded backscatter channels are extracted.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128929259","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}
{"title":"The Role of Data Repositories in Named Data Networking","authors":"Lixia Zhang","doi":"10.1109/ICCW.2019.8756944","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756944","url":null,"abstract":"Persistent in-network storage repository (repo for short) has been an integral component in the Named Data Networking (NDN) architecture since the beginning of its design. Up until now, however, little attention has been paid to the design, development, and usage of repo, while various questions often arise with regard to the relations between repos and other storage components in an NDN-enabled system. This position paper aims to highlight the importance of repo, clarify those questions, and identify remaining work to be done to make repos widely usable in various application scenarios.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116628356","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}
{"title":"Error Performance of Orthogonal Time Frequency Space (OTFS) Modulation","authors":"E. Biglieri, P. Raviteja, Y. Hong","doi":"10.1109/ICCW.2019.8756831","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756831","url":null,"abstract":"Orthogonal time frequency space (OTFS) transmits information symbols in the delay-Doppler domain rather than in the time-frequency domain (as with OFDM). In its original version, OTFS uses transmit and receive shaping waveforms which are biorthogonal with respect to translations by integer multiples of basic time and frequency intervals. In this paper we examine the performance of OTFS using general waveforms. Based on a discrete model of the modulation/demodulation procedure, we compute error probability, and we discuss the amount of diversity that can be achieved on fading channels.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133282202","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}
{"title":"A Synthetic User Behavior Dataset Design for Data-Driven AI-Based Personalized Wireless Networks","authors":"R. Alkurd, I. Abualhaol, H. Yanikomeroglu","doi":"10.1109/ICCW.2019.8756804","DOIUrl":"https://doi.org/10.1109/ICCW.2019.8756804","url":null,"abstract":"It is envisioned that wireless networks of the future will support personalized, fine-grained services and decisions by predicting user satisfaction in real-time using machine learning and big data analytics. Data-driven personalization will empower wireless networks to further optimize resources while maintaining user expectations of networks. In order to design, test, and validate research ideas related to wireless network personalization, acquiring data is essential. However, datasets that comprise user behavior and corresponding user satisfaction information are generally not published due to privacy and confidentiality concerns. To account for this, in this paper, we propose a synthetic dataset design methodology to generate labeled user behavior data with ground truth satisfaction values which mimic the real characteristics of real datasets. Finally, we conduct sample user satisfaction prediction experiments using several machine learning algorithms.","PeriodicalId":426086,"journal":{"name":"2019 IEEE International Conference on Communications Workshops (ICC Workshops)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122351031","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}