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

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Modulation and Coding Schemes for Variable-Rate Parallel Sequence Spread Spectrum 可变速率并行序列扩频的调制与编码方案
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569376
L. Lopacinski, A. Hasani, N. Maletic, J. Gutiérrez, R. Kraemer, E. Grass
{"title":"Modulation and Coding Schemes for Variable-Rate Parallel Sequence Spread Spectrum","authors":"L. Lopacinski, A. Hasani, N. Maletic, J. Gutiérrez, R. Kraemer, E. Grass","doi":"10.1109/PIMRC50174.2021.9569376","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569376","url":null,"abstract":"This paper investigates coding and modulation schemes for wireless communication based on variable-rate parallel sequence spread spectrum (PSSS). PSSS can adapt the spreading gain according to channel conditions. When this modulation technique is combined with external forward error correction (FEC), a challenge arises in adjusting the gains from FEC and PSSS to achieve the highest spectral and energy efficiency. We profile the bit error rate (BER) and energy efficiency as a function of the signal-to-noise ratio (SNR) for PSSS combined with low-density parity-check (LDPC) codes implemented in 28 nm CMOS technology. This analysis reveals that the gain provided by PSSS should be used only in exceptional cases, whereas LDPC codes provide the gain at a lower spectral- penalty. Moreover, we simplify our system by reducing the number of LDPC code rates. As compared to IEEE 802.11n, we exclude the 2/3 and 3/4 FEC code rates from the hardware and compensate these modes by using the variable-rate PSSS.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"33 1-2 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":"116722806","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
A New Look to THz Wireless Links: Fading Modeling and Capacity Assessment 太赫兹无线链路的新面貌:衰落建模和容量评估
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569623
Evangelos N. Papasotiriou, Alexandros-Apostolos A. Boulogeorgos, Mar Francis D. De Guzman, K. Haneda, A. Alexiou
{"title":"A New Look to THz Wireless Links: Fading Modeling and Capacity Assessment","authors":"Evangelos N. Papasotiriou, Alexandros-Apostolos A. Boulogeorgos, Mar Francis D. De Guzman, K. Haneda, A. Alexiou","doi":"10.1109/pimrc50174.2021.9569623","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569623","url":null,"abstract":"This work investigates the suitability of α–µ distribution to model line-of-sight (LoS) and non-line-of-sight (NLoS) multi-path fading in terahertz (THz) wireless systems. The goodness of fit of α–µ to the small-scale fading of the measured channels is evaluated in terms of the Kolmogorov-Smirnov (KS) test. The KS test revealed the capability of α–µ distribution to capture the fading characteristics of THz wireless channels. To highlight the importance of this study and the applicability to the theoretical analysis of THz wireless systems, for indicative values of α and µ, the ergodic capacity of THz wireless systems is assessed.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"14 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":"125168968","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: 13
Impact of Synchronization Errors on the Performance of ACO-OFDMA Signaling for Medical Extra-WBAN Links 同步误差对医用wban外链路ACO-OFDMA信令性能的影响
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569579
M. Hasan, M. Khalighi, L. N. Alves, Bastien Béchadergue
{"title":"Impact of Synchronization Errors on the Performance of ACO-OFDMA Signaling for Medical Extra-WBAN Links","authors":"M. Hasan, M. Khalighi, L. N. Alves, Bastien Béchadergue","doi":"10.1109/PIMRC50174.2021.9569579","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569579","url":null,"abstract":"This paper considers the use of infrared-based optical wireless communications for multi-user uplink wireless body-area networks. We propose the use of optical-orthogonal frequency division multiple access (O-OFDMA) signaling to manage the multiple access (MA) requirement for relatively high-rate medical applications. In particular, we consider asymmetrically clipped O-OFDMA and analyze its performance in terms of bit-error-rate and outage probability in the presence of multi-user time synchronization errors. These latter may occur due to mobility and random transmitter orientations, and will impact the link performance by inducing MA interference (MAI). We show that the effect of MAI increases with increasing the data rate. For instance, for 1 and 2 Mbps data rates, to achieve a target bit-error-rate of 10−3, the link distance is limited to 1.9 and 1 m, respectively, compared to 2.2 and 1.8 m in the absence of MAI.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"69 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":"127637019","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
Experimental Characterization of Multi-Hop Vehicular VLC Systems 多跳车载VLC系统的实验表征
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569682
Bassam Aly, M. Elamassie, M. Uysal
{"title":"Experimental Characterization of Multi-Hop Vehicular VLC Systems","authors":"Bassam Aly, M. Elamassie, M. Uysal","doi":"10.1109/PIMRC50174.2021.9569682","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569682","url":null,"abstract":"In vehicular visible light communication (VLC), the reliable communication distance may be relatively short due to its dependence on many factors including the weather condition. This necessitates the use of relay-assisted systems to extend the transmission range. In this paper, we investigate experimentally the performance of vehicular multi-hop VLC systems in outdoor environments. Particularly, we first examine the effect of ambient noise on signal-to-noise ratio (SNR) during a whole day. Then, we conduct two multi-hop experiments, i.e., one at daytime and one at nighttime. We measure the bit error rate (BER) for each individual hop and then obtain the overall performance of the multi-hop system. We further compare experimental BER with theoretical BER to confirm our results.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"10 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":"128109620","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
Verification of Dual-Polarized Ultra-Wideband Channel Sounder for THz Applications 用于太赫兹应用的双极化超宽带信道测深仪的验证
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569491
D. Dupleich, Alexander Ebert, R. Müller, G. D. Galdo, R. Thomä
{"title":"Verification of Dual-Polarized Ultra-Wideband Channel Sounder for THz Applications","authors":"D. Dupleich, Alexander Ebert, R. Müller, G. D. Galdo, R. Thomä","doi":"10.1109/PIMRC50174.2021.9569491","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569491","url":null,"abstract":"The lower THz bands are foreseen as candidates to achieve the data-rates demanded in the sixth generation (6G) of wireless communications. Hence, multiple measurements for characterization of propagation at these frequencies in different scenarios are being conducted all around the world. This also impulses activities on standardization of measurement equipment and methodologies to define common practices and make measurements from different actors comparable. Therefore, in the present paper we investigate the accuracy of a dual-polarized ultra-wideband channel sounder in the time, angular, and polarization domains by means of a verification methodology based on interferometry.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"11 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":"134585013","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
Impact of Network Densification on the Performance of a Non-Public URLLC Factory Network 网络密度对非公共URLLC工厂网络性能的影响
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569576
K. Hiltunen, Yanpeng Yang, Fedor Chernogorov
{"title":"Impact of Network Densification on the Performance of a Non-Public URLLC Factory Network","authors":"K. Hiltunen, Yanpeng Yang, Fedor Chernogorov","doi":"10.1109/PIMRC50174.2021.9569576","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569576","url":null,"abstract":"Densification of the network deployment, for example by adding new sectors or sites within an existing mobile communication network, has traditionally been an efficient way to improve the system coverage and capacity. That will be the case even for the ultra-reliable low-latency communication (URLLC) services, but the overall situation and the feasibility of the different deployment options will depend on the characteristics of the URLLC service in question. URLLC services with relaxed latency requirements, allowing multiple transmission attempts, can tolerate a decent level of inter-cell interference while still being able to guarantee the desired quality-of-service for all users, which makes it possible to improve the URLLC service capacity by adding new gNodeBs with omnidirectional or directional antennas. However, when the URLLC services require extremely low latency that do not allow for retransmissions, the system performance becomes quite sensitive to the inter-cell interference, which means that in practice the gNodeBs should be equipped with beamformed antennas to reach high levels of URLLC service capacity. Finally, an active distributed antenna system could be an efficient way to secure good coverage throughout the desired service area.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"67 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":"134071257","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
Imperfect jamming cancellation on NOMA networks with randomly located eavesdroppers 随机定位窃听者的NOMA网络干扰消除不完善
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/pimrc50174.2021.9569573
G. A. D. Silva, D. M. Osorio, M. Latva-aho
{"title":"Imperfect jamming cancellation on NOMA networks with randomly located eavesdroppers","authors":"G. A. D. Silva, D. M. Osorio, M. Latva-aho","doi":"10.1109/pimrc50174.2021.9569573","DOIUrl":"https://doi.org/10.1109/pimrc50174.2021.9569573","url":null,"abstract":"This paper addresses the secrecy performance of the downlink of a non-orthogonal multiple access network in the presence of multiple randomly located eavesdroppers. The network consists of a base station and a near receiver that are located inside a protected zone, free of eavesdroppers, while a far user is located outside. Herein, it is considered that the source transmits a superposed jamming signal to enhance the secrecy performance. In this sense, imperfections on the removal of the jamming signal by the legitimate receivers are also investigated. Integral-form exact and closed-form approximate expressions for the secrecy outage probability are derived by employing stochastic geometry tools. The expressions are corroborated via Monte Carlo simulations.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"34 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":"133958344","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
Coexistence of DSRC and C-V2X communication: modeling a competing scenario DSRC和C-V2X通信的共存:竞争情景建模
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569555
Blanca Ramos Elbal, M. Rupp
{"title":"Coexistence of DSRC and C-V2X communication: modeling a competing scenario","authors":"Blanca Ramos Elbal, M. Rupp","doi":"10.1109/PIMRC50174.2021.9569555","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569555","url":null,"abstract":"Vehicular communications has steadily grown in the last years playing a key role in the development of road safety applications, assisting users to improve traffic efficiency, or providing infotainment systems. There are two main Radio access technologies (RATs) that support vehicular communications: the Dedicated Short Range Communication (DSRC) and the Cellular vehicle-to-everything (C-V2X) standard. Among its use cases, the C-V2X technology allows communication between users, that is, vehicle-to-vehicle (V2V) communication, but also the vehicle-to-infrastructure (V2I) communication. In our work, we focus on enhancing the quality of the V2I link through V2V communications. We use idle users to boost the signal coming from the Base Station (BS) and therefore to improve the coverage of the overall network. Furthermore, we analyze a scenario where both standards coexist: the cellular users enhance the signal from the BS while DSRC users act as interferes in the relay-assisted link. To model the interference of the DSRC users, we consider both perfect and imperfect Carrier Sense Multiple Access (CSMA). Our scenario is a 2-dimensional (2D) Manhattan grid where BSs, vehicular users, and streets are placed randomly. We provide analytical expressions of the coverage probability for the direct link and the individual parts of the relay-assisted link by leveraging tools from stochastic geometry (SG). We compare the analytical results to Monte Carlo system-level simulations in order to validate our model.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"153 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":"134481758","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
One-Bit Quantized Channel Prediction with Neural Networks 基于神经网络的一比特量化信道预测
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569456
N. Turan, M. Koller, W. Utschick
{"title":"One-Bit Quantized Channel Prediction with Neural Networks","authors":"N. Turan, M. Koller, W. Utschick","doi":"10.1109/PIMRC50174.2021.9569456","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569456","url":null,"abstract":"We study the problem of predicting channel coefficients from one-bit quantized observations in an environment of a moving user who sends pilots to a base station. To start with, we propose a prediction algorithm which consists of two stages. The first stage aims at reconstructing the high-resolution (pre-quantization) receive signal. The second stage then predicts channel coefficients from this reconstructed signal. A drawback of this algorithm is that certain second moments of the channel statistics are required. In case of high-resolution (no quantization) observations, a recently introduced neural network based approach was able to predict channels even without the use of second order statistics. A low-SNR formulation of the proposed two stage algorithm motivates us to employ the neural network based method also in the case of one-bit quantization. Numerical simulations demonstrate the validity of this approach. We observe that the obtained channel predictor can compete with the algorithm that makes use of the second order statistics.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"4 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":"133625689","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
Sub-THz VNA-based Channel Sounder Structure and Channel Measurements at 100 and 300 GHz 基于次太赫兹vna的信道测深仪结构和100和300 GHz的信道测量
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) Pub Date : 2021-09-13 DOI: 10.1109/PIMRC50174.2021.9569702
Yejian Lyu, P. Kyösti, W. Fan
{"title":"Sub-THz VNA-based Channel Sounder Structure and Channel Measurements at 100 and 300 GHz","authors":"Yejian Lyu, P. Kyösti, W. Fan","doi":"10.1109/PIMRC50174.2021.9569702","DOIUrl":"https://doi.org/10.1109/PIMRC50174.2021.9569702","url":null,"abstract":"Sub-THz, i.e. frequency range 100 - 300 GHz, frequency bands have attracted huge interest in recent years for beyond 5G communication and high data-rate applications, due to its large available frequency bandwidth. In this work, we presented two vector network analyzer (VNA) based channel sounder systems, operating at the frequency range of 75-110 GHz and 220-330 GHz, respectively. The focus is on the channel sounder structure, link budget as well as system calibration performance. Moreover, we presented a simple wideband directional measurement in a rich scattering laboratory scenario with the two discussed channel sounders. The results showed that similar dominant multipath components (MPCs) can be observed in the two frequency bands, yet many more weak MPCs can be seen at 100 GHz, compared to results at 300 GHz.","PeriodicalId":283606,"journal":{"name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","volume":"56 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":"117301482","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
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