2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)最新文献_第2页

Rate-Splitting Multiple Access for Indoor Visible Light Communication Networks 室内可见光通信网络的分速多址

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419979

Shimaa A. Naser, P. Sofotasios, S. Muhaidat, M. Al-Qutayri

{"title":"Rate-Splitting Multiple Access for Indoor Visible Light Communication Networks","authors":"Shimaa A. Naser, P. Sofotasios, S. Muhaidat, M. Al-Qutayri","doi":"10.1109/WCNCW49093.2021.9419979","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9419979","url":null,"abstract":"Visible light communication (VLC) has been emerged as a technology that can increase the channel capacity in the next generations of wireless technologies by exploiting the largely unutilized, licence-free and huge visible light portion of the electromagnetic spectrum. In order to enable high-speed short-range wireless communications, VLC utilizes the installed high-switching rate light emitting diodes (LEDs) in the ceilings of indoor environments, which are primarily used for illumination, to modulate the signals into visible light intensity. However, VLC suffers from several limitations, such as the limited modulation bandwidth and the coverage area of LEDs that degrade the overall system spectral efficiency (SE). In this respect, the present contribution proposes rate splitting multiple access (RSMA) for multi-cell indoor VLC systems as a mean to enhance the overall system SE and energy efficiency (EE) as well as to provide ubiquitous indoor coverage and to address user mobility issues. Moreover, we utilize coordinated beamforming to design the precoders of the common and the private streams in each cell aiming to enhance the performance of cell-edge users. Finally, the formulated sum of the mean squared error optimization problem is solved sub-optimally using an alternating optimization approach. Extensive computer simulations demonstrate that RSMA improves the overall system performance in terms of the SE and EE compared to the recently used multiple access techniques, such as space division multiple access with coordinated beamforming which constitutes a special case of it.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128674970","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}

引用次数: 5

Privacy Preserved Secure Offloading in the Multi-access Edge Computing Network 多址边缘计算网络中的保密性安全卸载

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419987

Yang Sun, N. Li, Xiaofeng Tao

{"title":"Privacy Preserved Secure Offloading in the Multi-access Edge Computing Network","authors":"Yang Sun, N. Li, Xiaofeng Tao","doi":"10.1109/WCNCW49093.2021.9419987","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9419987","url":null,"abstract":"Mobile edge computing (MEC) emerges recently to help process the computation-intensive and delay-sensitive applications of resource limited mobile devices in support of MEC servers. Due to the wireless offloading, MEC faces many security challenges, like eavesdropping and privacy leakage. The anti-eavesdropping offloading or privacy preserving offloading have been studied in existing researches. However, both eavesdropping and privacy leakage may happen in the meantime in practice. In this paper, we propose a privacy preserved secure offloading scheme aiming to minimize the energy consumption, where the location privacy, usage pattern privacy and secure transmission against the eavesdropper are jointly considered. We formulate this problem as a constrained Markov decision process (CMDP) with the constraints of secure offloading rate and pre-specified privacy level, and solve it with reinforcement learning (RL). It can be concluded from the simulation that this scheme can save the energy consumption as well as improve the privacy level and security of the mobile device compared with the benchmark scheme.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130998417","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}

引用次数: 7

Dynamic Coverage Path Planning of Energy Optimization in UAV-enabled Edge Computing Networks 基于无人机的边缘计算网络能量优化动态覆盖路径规划

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419992

Jianguo Yu, Yongxu Zhu, Haitao Zhao, R. Cepeda-Lopez, T. Dagiuklas, Yue Gao

引用次数: 4

Sparse Vector Coding-based Superimposed Transmission for Short Packet URLLC 基于稀疏矢量编码的短包URLLC叠加传输

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9420001

Xuewan Zhang, G. Han, Dalong Zhang, B. Shim, Di Zhang

{"title":"Sparse Vector Coding-based Superimposed Transmission for Short Packet URLLC","authors":"Xuewan Zhang, G. Han, Dalong Zhang, B. Shim, Di Zhang","doi":"10.1109/WCNCW49093.2021.9420001","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9420001","url":null,"abstract":"Sparse vector coding (SVC) based on position indices is emerging as a key enabler for short packet ultra-reliable and low latency communications (URLLC), since it can achieve better block error rate (BLER) performance and lower transmission latency. In this paper, we propose a SVC-based superimposed transmission (SVC-ST) scheme to further enhance the transmission reliability of SVC. At the encoding side, a portion of transmission bits is represented by non-zero position indices of sparse vector. The remaining bits are equally split into multiple streams and then mapped into the related positions of sparse vector via quadrature amplitude modulation (QAM) with constellation rotation. After random spreading, a transmission vector superimposed by multiple QAM signals is formed on frequency resource blocks. Different from SVC scheme, the non-zero position indices and related elements of sparse vector in SVC-ST scheme are respectively represented different bit information. For the SVC-ST decoding, multipath matching pursuit (MMP)-based soft decoding (MMP-SD) scheme is adopted to recover the transmission packet. Simulation results indicate that the proposed SVC-ST scheme outperforms existing SVC schemes in terms of BLER performance.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126976447","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}

引用次数: 4

Hand gesture recognition using 802.11ad mmWave sensor in the mobile device 在移动设备中使用802.11ad毫米波传感器进行手势识别

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419978

Yuwei Ren, Jiuyuan Lu, Andrian Beletchi, Yin Huang, I. Karmanov, D. Fontijne, C. Patel, Hao Xu

{"title":"Hand gesture recognition using 802.11ad mmWave sensor in the mobile device","authors":"Yuwei Ren, Jiuyuan Lu, Andrian Beletchi, Yin Huang, I. Karmanov, D. Fontijne, C. Patel, Hao Xu","doi":"10.1109/WCNCW49093.2021.9419978","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9419978","url":null,"abstract":"We explore the feasibility of AI assisted hand-gesture recognition using 802.11ad 60GHz (mmWave) technology in smartphones. Range-Doppler information (RDI) is obtained by using pulse Doppler radar for gesture recognition. We built a prototype system, where radar sensing and WLAN communication waveform can coexist by time-division duplex (TDD), to demonstrate the real-time hand-gesture inference. It can gather sensing data and predict gestures within 100 milliseconds. First, we build the pipeline for the real-time feature processing, which is robust to occasional frame drops in the data stream. RDI sequence restoration is implemented to handle the frame dropping in the continuous data stream, and also applied to data augmentation. Second, different gestures RDI are analyzed, where finger and hand motions can clearly show distinctive features. Third, five typical gestures (swipe, palm-holding, pull-push, finger-sliding and noise) are experimented with, and a classification framework is explored to segment the different gestures in the continuous gesture sequence with arbitrary inputs. We evaluate our architecture on a large multi-person dataset and report > 95% accuracy with one CNN + LSTM model. Further, a pure CNN model is developed to fit to on-device implementation, which minimizes the inference latency, power consumption and computation cost. And the accuracy of this CNN model is more than 93% with only 2.29K parameters.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114277892","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}

引用次数: 11

Sum Spectral Efficiency Optimization for Rate Splitting in Downlink MU-MISO: A Generalized Power Iteration Approach 下行MU-MISO中速率分割的和频谱效率优化:一种广义功率迭代方法

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9420033

Jeonghun Park, Jinseok Choi, N. Lee, W. Shin, H. Poor

{"title":"Sum Spectral Efficiency Optimization for Rate Splitting in Downlink MU-MISO: A Generalized Power Iteration Approach","authors":"Jeonghun Park, Jinseok Choi, N. Lee, W. Shin, H. Poor","doi":"10.1109/WCNCW49093.2021.9420033","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9420033","url":null,"abstract":"In this paper, we consider a downlink multiple-input multiple-output (MIMO) system, where a rate splitting approach is applied to serve multiple users more efficiently. We formulate a sum spectral efficiency maximization problem with respect to precoders when noisy channel state information is available at the transmitter. Finding even a suboptimal solution is a very challenging task by its non-convexity and non-smoothness. To resolve this challenge, we first approximate the non-smooth minimum function by using a LogSumExp technique, and reformulate the problem as a form of the product of Rayleigh quotients, considering channel estimation error. Then we derive the first-order optimality condition. A key observation of the obtained condition is that it can be cast as a nonlinear eigenvector-dependent eigenvalue problem so that finding a leading eigenvector is equivalent to finding a local optimal solution. To this end, we propose an algorithm inspired by a power iteration method, referred to as a generalized power iteration for rate splitting. Simulation results show that the proposed method enhances the achievable performance when channel acquisition error exists.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123072328","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}

引用次数: 6

DOA Estimation with a Combination of Iterative MUSIC and SBL in Low SNR Conditions 低信噪比条件下结合迭代MUSIC和SBL的DOA估计

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419990

Mengfan Zhou, Hui Tian, Shaoshuai Fan

引用次数: 0

Caching Strategy Based on Data Freshness with Helpers in D2D Wireless Network D2D无线网络中基于helper的数据新鲜度缓存策略

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9420016

Zhihao Li, Yu Lin, W. Cai, Feng Ke, Ying-Po Lee, Liping Yang

引用次数: 0

Network Cost Minimization for Reconfigurable Intelligent Surface aided Edge Caching 可重构智能曲面辅助边缘缓存的网络成本最小化

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419999

Yingyang Chen, Miaowen Wen, E. Başar, Yik-Chung Wu, Li Wang, Weiping Liu

引用次数: 1

On the Exploration and Exploitation Trade-off in Cooperative Caching-enabled Networks 基于协同缓存的网络探索与开发权衡研究

2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2021-03-29 DOI: 10.1109/WCNCW49093.2021.9419984

Srikanth Bommaraveni, S. Gautam, T. Vu, S. Chatzinotas

{"title":"On the Exploration and Exploitation Trade-off in Cooperative Caching-enabled Networks","authors":"Srikanth Bommaraveni, S. Gautam, T. Vu, S. Chatzinotas","doi":"10.1109/WCNCW49093.2021.9419984","DOIUrl":"https://doi.org/10.1109/WCNCW49093.2021.9419984","url":null,"abstract":"Edge-caching is considered as a promising solution to address network congestion and to reduce delivery latency by bringing relevant contents close to users. In this context, the commonly used notion involves the storage of the most popular contents in the cache, while consequently increasing the cache hit ratio (CHR). In the majority of prior works, the content popularity is assumed to be perfectly known and often a priori. However, in reality, the content popularity has to be explored especially for uncertain contents, such as new entrants and items with fast time-varying popularity. In this paper, we develop a framework to analyze the joint exploration and exploitation trade-off by caching both popular and uncertain contents to enable more efficient content caching. Particularly, we formulate an optimization problem to maximize the trade-off between exploration and exploitation subject to the storage capacity, guaranteed CHR and back-haul energy budget constraints. Furthermore, we solve the formulated mixed-integer combinatorial problem by using branch-and-bound method and relaxing the binary to box constraints. The superiority in performance of the proposed method over the state-of-the-art solution is demonstrated in terms of the CHR and back-haul energy on a realistic Movie-lens dataset.","PeriodicalId":262379,"journal":{"name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129336445","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}

引用次数: 1