2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)最新文献

Deep Reinforcement Learning based Congestion Control for V2X Communication 基于深度强化学习的V2X通信拥塞控制

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569259

Moustafa Roshdi, Shubhangi Bhadauria, Khaled Hassan, Georg Fischer

{"title":"Deep Reinforcement Learning based Congestion Control for V2X Communication","authors":"Moustafa Roshdi, Shubhangi Bhadauria, Khaled Hassan, Georg Fischer","doi":"10.1109/PIMRC50174.2021.9569259","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569259","url":null,"abstract":"In release 14 (Rel-14) Long Term Evolution (LTE), the 3rd generation partnership project (3GPP) standard has introduced Cellular Vehicle to Everything (C-V2X) communication to pave the way for future intelligent transport systems (ITS). C-V2X communication envisions supporting a diverse range of use cases with varying quality of service (QoS) requirements. For example, cooperative collision avoidance re-quires stringent reliability, while infotainment use cases require a high data throughput. C-V2X communication remains susceptible to performance degradation due to network congestion. This paper presents a centralized congestion control scheme for C-V2X communication based on the Deep Reinforcement Learning (DRL) framework. A performance evaluation of the algorithm is conducted based on system-level simulation based on TAPASCologne scenario in the Simulation of Urban Mobility (SUMO) platform. The results show the effectiveness of a DRL-based approach to achieve the packet reception ratio (PRR) as per the packet’s associated QoS while maintaining the average measured Channel Busy Ratio (CBR) below 0.65.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"287 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115392196","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

Adaptive Creation and Migration of Time-series City Profiles based on Edge Computing 基于边缘计算的时间序列城市轮廓自适应创建与迁移

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569569

Fang-jing Wu, Yudong Zhao, Lingling Chen

{"title":"Adaptive Creation and Migration of Time-series City Profiles based on Edge Computing","authors":"Fang-jing Wu, Yudong Zhao, Lingling Chen","doi":"10.1109/pimrc50174.2021.9569569","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569569","url":null,"abstract":"Time-series sensor data are used to create prediction models, called city profiles, for understanding city dynamics in the smart-city sector. These city profiles are typically created and updated by the Cloud using reported raw sensor data. However, continuously reporting raw sensor data is not energy efficient for boundary computing resources of a network. Thus, this work considers edge servers that are deployed on the boundary computing resources of a network to collaborate with the Cloud for adaptively mitigate city profiling tasks (i.e., creating city profiles) across an edge server and the Cloud. By maintaining the local city profiles on the edge or the global city profiles on the Cloud, either an edge or the Cloud can dynamically respond to user queries. However, there is a trade-off between the energy consumption of an edge and the response accuracy of the city profiles. This work designs an adaptive city profiling and synchronization approach for edges to decide when, where (i.e., an edge or the Cloud), and how to update and synchronize local and global city profiles such that the energy consumption of the edge is reduced while the accuracy of a city profile can be guaranteed. Extensive simulations are conducted using a real-world temperature dataset to evaluate the performance of the proposed approach. The simulation results indicate an average energy saving of 60% of edges compared with a typical Cloud-based approach while the required accuracy is fulfilled.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125233095","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: 0

On Enlarged 5G PRACH Preamble Set Using Alltop Cubic-Phase Sequences 基于全顶三相序列的5G PRACH扩大化序集研究

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569499

Renaud-Alexandre Pitaval

{"title":"On Enlarged 5G PRACH Preamble Set Using Alltop Cubic-Phase Sequences","authors":"Renaud-Alexandre Pitaval","doi":"10.1109/pimrc50174.2021.9569499","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569499","url":null,"abstract":"5G physical random access channel (PRACH) uses several new preamble formats with less Zadoff-Chu (ZC) sequences available for the network than with formats inherited from LTE. We thus recently proposed an enlarged 5G PRACH preamble construction by covering ZC sequences with cubic-phase Alltop sequences. This construction significantly increases the PRACH sequence set while maintaining a similar intra-cell detection performance from a guaranteed low-correlation zone, and with limited inter-cell interference. However, unlike ZC, the new sequences did not come with a low-complexity PRACH detection which then had to naively rely on an exhaustive search, significantly increasing the PRACH receiver complexity. In this paper, we revisit this extended PRACH sequence construction and modify it to enable a detection of the same complexity-order as current 5G PRACH sequence set, without impacting the detection performance and promised PRACH capacity. Moreover, we describe a symmetrical but slightly non-equivalent PRACH sequence construction that achieves a similar performance and enables the same low-detection capability. Interestingly, this latter construction can be reduced to show that only pure Alltop and ZC sequences may concurrently be used in the network.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116657355","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: 0

Performance Analysis of RIS-SSK in the Presence of Hardware Impairments 存在硬件损伤时RIS-SSK的性能分析

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569436

Asma Bouhlel, Malek M. Alsmadi, Emad Saleh, S. Ikki, A. Sakly

{"title":"Performance Analysis of RIS-SSK in the Presence of Hardware Impairments","authors":"Asma Bouhlel, Malek M. Alsmadi, Emad Saleh, S. Ikki, A. Sakly","doi":"10.1109/PIMRC50174.2021.9569436","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569436","url":null,"abstract":"Reconfigurable Intelligent Surface-based Space Shift Keying (RIS-SSK) was recently proposed as a promising transmission technique. In order to design strategic radio environments, this system takes advantage of RIS-based communication and adjusts the propagation channels. Furthermore, using SSK as a special case of the Spatial Modulation (SM) reduces the detection complexity by using only the index of the active antenna to transmit the data. However, when considering an effective RIS-SSK system, the transmit antenna is modeled by spatial constellation points with different weights. This requires the knowledge of Channel State Information (CSI), including the index of the activated antenna at each transmission which is impractical. In contrast, blind RIS-SSK does not require this information, decreasing its complexity and increasing its practicality. In this paper, a blind RIS-SSK system without phase-adjusting is studied in the presence of hardware impairments and compared to the standard SSK. Additionally, analytically error probability expressions based on the Maximum Likelihood (ML) detector are developed and proven with simulations. The results illustrate the negative effects of modeling the hardware impairments for robust RIS-SSK system implementation.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116684167","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: 8

Q-learning based Radio Resource Adaptation for Improved Energy Performance of 5G Base Stations 基于q学习的无线资源自适应改进5G基站能量性能

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569420

S. K. G. Peesapati, M. Olsson, Meysam Masoudi, S. Andersson, C. Cavdar

{"title":"Q-learning based Radio Resource Adaptation for Improved Energy Performance of 5G Base Stations","authors":"S. K. G. Peesapati, M. Olsson, Meysam Masoudi, S. Andersson, C. Cavdar","doi":"10.1109/pimrc50174.2021.9569420","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569420","url":null,"abstract":"Radio resource adaptation (RRA) is an effective strategy to reduce the energy consumption (EC) of a base station (BS) under variable input traffic demand. By combining RRA with advanced sleep modes (ASMs), one could achieve relatively higher energy savings (ES) during the low traffic hours of the day while managing to meet the quality of service (QoS) requirements of the user equipments (UEs). However, identifying appropriate resources for a certain period is challenging as different resources (i.e., the bandwidth and the antenna array size) have a varying impact on the instantaneous power consumption (PC) and activity of the BS. Various works have looked into the potential of RRA and ASMs in reducing the EC of a BS when implemented independently. In this work, we combine RRA with ASMs and propose a dynamic Q-learning algorithm that adapts a BS’s resources according to the traffic demand. The algorithm also takes into account the sleep modes (SMs) that the BS can switch to during the idle periods. Through simulations, we show the convergence of our algorithm and the impact of combining RRA with ASMs on the overall ES as we observe up to 16% additional savings in a super-dense urban (SDU) deployment scenario by combining these techniques as compared to the baseline scenario using only ASMs.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124828603","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

Power delay profile analysis of industrial channels at 2.1, 2.6, 3.8 and 5.1 GHz 2.1、2.6、3.8和5.1 GHz工业信道的功率延迟分析

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569632

Eike Lyczkowski, C. Sauer, Felix Reichert, Hannes Frey

引用次数: 2

Relay Selection and Throughput Maximization for Full Duplex Wireless Powered Cooperative Communication Networks 全双工无线供电协作通信网络中继选择与吞吐量最大化

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569288

S. Kazmi, M. S. Iqbal, S. Coleri

{"title":"Relay Selection and Throughput Maximization for Full Duplex Wireless Powered Cooperative Communication Networks","authors":"S. Kazmi, M. S. Iqbal, S. Coleri","doi":"10.1109/pimrc50174.2021.9569288","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569288","url":null,"abstract":"Cooperative communication using energy harvesting (EH) nodes promises significant improvement in network throughput, coverage, and reliability. This work studies a full-duplex (FD) wireless powered cooperative communication network (WPCCN), in which the users communicate to a hybrid access point (HAP) via decode-and-forward (DF) EH relay nodes. We present an optimization framework for the relay selection problem with an objective of maximizing the sum throughput of the FD-WPCCN, for the first time in the literature. The formulated optimization problem is a mixed integer non-linear programming problem (MINLP), which is difficult to solve for global optimal solution. As a solution strategy, we first analyze the problem for a given relay allocation and prove that it is a convex problem. We solve the problem for the optimal solution by using the Karush-Kuhn-Tucker conditions. Then, for the relay selection problem, we present a polynomial time heuristic algorithm based on the allocation of relay with the best channel conditions to each user. Through extensive simulations, we show that the proposed algorithm performs close to the optimal solution for various network parameters such as different HAP transmission power values, network sizes, and initial battery level of the nodes. We observe that the sum throughput of the network can be increased significantly by using a proper relay selection technique.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125923512","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: 2

A Smart Parking-lot Occupancy Model in 5G V2V and V2I Wireless Communication 5G V2V和V2I无线通信下的智能停车场占用模型

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569337

Bipasha Mukhopadhyay, T. Samanta

{"title":"A Smart Parking-lot Occupancy Model in 5G V2V and V2I Wireless Communication","authors":"Bipasha Mukhopadhyay, T. Samanta","doi":"10.1109/PIMRC50174.2021.9569337","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569337","url":null,"abstract":"Smart city is the new demand of this world. This ’smart’ concept is related to the increase in automation and leads to reduce the human involvements at different phase. Intelligent transport system (ITS) is an important part of smart city. In this work we have proposed a 5G communication based smart parking lot occupancy system where vehicles can communicate each other through OBUs (On Board Units) and other RSUs (Road Side Units). With this capability, a vehicle can inform all the units when it is about to leave and an incoming vehicle can get the update about free space. We have predicted a waiting queue for the incoming vehicles when parking lot is full and predicted a optimal position about the placement of RSUs. The target of this work is to optimize the use of the entire parking lot and also to reduce the chances of failure to allocate a parking lot. We have simulated our proposed model using SUMO and omnet + + simulators and measured performance in terms of success rate of allocation of parking lots and different QoS parameters like packet drop and delay in response.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143831","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: 3

Frame Synchronisation for Multi-Source Holograhphic Teleportation Applications - An Edge Computing Based Approach 多源全息隐形传态应用的帧同步——基于边缘计算的方法

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569710

Sweta Anmulwar, Ning Wang, Andy Pack, Vu San Ha Huynh, Jinze Yang, R. Tafazolli

{"title":"Frame Synchronisation for Multi-Source Holograhphic Teleportation Applications - An Edge Computing Based Approach","authors":"Sweta Anmulwar, Ning Wang, Andy Pack, Vu San Ha Huynh, Jinze Yang, R. Tafazolli","doi":"10.1109/PIMRC50174.2021.9569710","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569710","url":null,"abstract":"Live holographic teleportation is an emerging media application that allows Internet users to communicate with each other in a fully immersive manner. One distinct feature of such an application is the capability of simultaneously teleporting multiple objects from different network locations to the receiver’s field of view, mimicking the effect of group-based communications in a common physical space. In this case, teleportation frames from individual sources need to be stringently synchronized in order to assure user Quality of Experiences (QoE) in terms of avoiding the perception of motion misalignment at the receiver side. In this paper, we carry out systematic performance evaluations on how different Internet path conditions may affect the teleportation frame synchronisation performances. Based on this, we present a lightweight, edge-computing based scheme that is able to achieve controllable frame synchronisation operations for multi-source based teleportation applications at the Internet scale.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122616688","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

Reciprocity calibration of Distributed Massive MIMO Access Points for Coherent Operation 面向相干操作的分布式海量MIMO接入点互易校准

2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569495

Joao Vieira, E. Larsson

{"title":"Reciprocity calibration of Distributed Massive MIMO Access Points for Coherent Operation","authors":"Joao Vieira, E. Larsson","doi":"10.1109/PIMRC50174.2021.9569495","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569495","url":null,"abstract":"Novel network architectures for 6G distributed massive MIMO systems rely on coherent signaling by distributed antenna panels which are coordinated by a central controller. This type of network architecture is based on reciprocity operation where antenna panels rely on uplink channel estimates for coherent downlink precoding. This paper proposes a calibration method for distributed massive MIMO systems, which overcomes hardware non-reciprocities in order to enable reciprocity-based operation. Measurements for system calibration are collected via a beam-sweep between all pairs of antenna panels. We lay out the system model for this new setup, and propose a maximum likelihood-based procedure to compute calibration coefficients based on the collected measurement set. The procedure is computationally efficient and stable, since 1) each iteration has a closed-form, and 2) the procedure is guaranteed to converge to at least a local optimum (or saddle point). Simulations indicate significant calibration improvements compared to re-using state of the art calibration schemes for the problem at hand.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121884338","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