Pub Date : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700410
Hidetomo Ochiai, K. Mizutani, H. Harada
Currently, frequency shift keying (FSK) standardized in IEEE 802.15.4 is adopted in smart metering systems as a transmission scheme for the Internet of things (IoT). On the other hand, there are increasing demands for higher data rates, long-distance transmission, and mobile communication for further expansion of IoT applications. Orthogonal frequency division multiplexing (OFDM) standardized in IEEE 802.15.4 attracts attention as a transmission scheme to adaptively realize these demands. However, in our previous study, mobile communication with the required packet error rate (PER) was achieved at moving speeds of only up to 40 km/h in an urban environment because the receiving scheme could not follow fading fluctuations in the time domain during high-speed movement. To improve the PER performance in higher-speed mobile IoT communication systems, we propose a novel channel estimation method for IEEE 802.15.4 OFDM that improves the refresh rate of channel estimates by copying estimates of neighboring subcarriers. Computer simulation results show that the proposed method combined with the maximal ratio combining achieves the required PER even at 200 km/h in the urban environment.
{"title":"A Receiver for IEEE 802.15.4-based High-speed Mobile IoT Communication Systems","authors":"Hidetomo Ochiai, K. Mizutani, H. Harada","doi":"10.1109/wpmc52694.2021.9700410","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700410","url":null,"abstract":"Currently, frequency shift keying (FSK) standardized in IEEE 802.15.4 is adopted in smart metering systems as a transmission scheme for the Internet of things (IoT). On the other hand, there are increasing demands for higher data rates, long-distance transmission, and mobile communication for further expansion of IoT applications. Orthogonal frequency division multiplexing (OFDM) standardized in IEEE 802.15.4 attracts attention as a transmission scheme to adaptively realize these demands. However, in our previous study, mobile communication with the required packet error rate (PER) was achieved at moving speeds of only up to 40 km/h in an urban environment because the receiving scheme could not follow fading fluctuations in the time domain during high-speed movement. To improve the PER performance in higher-speed mobile IoT communication systems, we propose a novel channel estimation method for IEEE 802.15.4 OFDM that improves the refresh rate of channel estimates by copying estimates of neighboring subcarriers. Computer simulation results show that the proposed method combined with the maximal ratio combining achieves the required PER even at 200 km/h in the urban environment.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114676824","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700442
T. Matsumura
In-band full-duplex (IBFD) has the potential to double spectrum efficiency by simultaneous transmission and reception at the same frequency. Meanwhile, simultaneous operation of the transmitter and receiver induces significant self-interference (SI) and degrades communication quality. In general, in the analog domain, the antenna isolation and analog cancellation circuit reduces the SI signal level and facilitates the SI cancellation in the digital domain. For the stable SI cancellation, a dedicated analog cancellation circuit is implemented in the analog radio frequency (RF) front-end circuit according to the characteristics of the antenna and analog circuit. The author has prototyped multi-band analog RF front-end for IBFD based on the super-heterodyne architecture. An analog SI cancellation circuit is implemented in an intermediate frequency (IF) circuit to support various frequency bands by connecting different analog RF front-end circuits and antennas according to the operation frequency. However, the frequency response of the antenna and analog circuit vary depending on the frequency band and needs to be flexibly compensated by the SI cancellation circuit. This paper describes a prototype multi-band analog RF front-end that can support various frequency bands with the compensation for the frequency response. Then, the SI cancellation performance is evaluated by connecting a prototype two-element integrated small antenna. From the result, more than 65 dB SI cancellation is obtained in the analog domain for the transmission signal with a 20 MHz bandwidth at 3.85 GHz.
{"title":"On the Analog Self-interference Cancellation for In-band Full-duplex Radio with Compensation for Inherent Frequency Response","authors":"T. Matsumura","doi":"10.1109/wpmc52694.2021.9700442","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700442","url":null,"abstract":"In-band full-duplex (IBFD) has the potential to double spectrum efficiency by simultaneous transmission and reception at the same frequency. Meanwhile, simultaneous operation of the transmitter and receiver induces significant self-interference (SI) and degrades communication quality. In general, in the analog domain, the antenna isolation and analog cancellation circuit reduces the SI signal level and facilitates the SI cancellation in the digital domain. For the stable SI cancellation, a dedicated analog cancellation circuit is implemented in the analog radio frequency (RF) front-end circuit according to the characteristics of the antenna and analog circuit. The author has prototyped multi-band analog RF front-end for IBFD based on the super-heterodyne architecture. An analog SI cancellation circuit is implemented in an intermediate frequency (IF) circuit to support various frequency bands by connecting different analog RF front-end circuits and antennas according to the operation frequency. However, the frequency response of the antenna and analog circuit vary depending on the frequency band and needs to be flexibly compensated by the SI cancellation circuit. This paper describes a prototype multi-band analog RF front-end that can support various frequency bands with the compensation for the frequency response. Then, the SI cancellation performance is evaluated by connecting a prototype two-element integrated small antenna. From the result, more than 65 dB SI cancellation is obtained in the analog domain for the transmission signal with a 20 MHz bandwidth at 3.85 GHz.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132693147","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700433
Masayuki Ishizaki, K. Yamamoto, Masahiro Asano, K. Mizutani, H. Harada
In this paper, we propose a real-time delay profile measurement method for ARIB STD-T103/119 systems, which can cope with presence of multiple mobile stations (MSs). The proposed method consists of a fast reception gain control method and a delay profile measurement method for multiple MSs. In addition, we develop a radio sensor that implements these proposed methods and evaluate its performance by offline tests. Firstly, we confirmed that the delay time and attenuation level of each path of the channel model set by the multipath fading simulator were appropriately reproduced in the measured delay profile results. Then, we evaluated the frequency of delay profile measurements with the developed radio sensor. When the average received power is –80 dBm or higher, which is the averaged received power range in normal operation, the fast reception gain control method worked effectively, and the delay profile measurement frequency for each MS converged to up to 2.0 times per second, which is much higher than the target values.
{"title":"Radio Sensor Development for Location Estimation Using Radio Big Data of ARIB STD-T103/119-compliant Wireless Communication Systems","authors":"Masayuki Ishizaki, K. Yamamoto, Masahiro Asano, K. Mizutani, H. Harada","doi":"10.1109/wpmc52694.2021.9700433","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700433","url":null,"abstract":"In this paper, we propose a real-time delay profile measurement method for ARIB STD-T103/119 systems, which can cope with presence of multiple mobile stations (MSs). The proposed method consists of a fast reception gain control method and a delay profile measurement method for multiple MSs. In addition, we develop a radio sensor that implements these proposed methods and evaluate its performance by offline tests. Firstly, we confirmed that the delay time and attenuation level of each path of the channel model set by the multipath fading simulator were appropriately reproduced in the measured delay profile results. Then, we evaluated the frequency of delay profile measurements with the developed radio sensor. When the average received power is –80 dBm or higher, which is the averaged received power range in normal operation, the fast reception gain control method worked effectively, and the delay profile measurement frequency for each MS converged to up to 2.0 times per second, which is much higher than the target values.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131268145","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700427
Muhammad Usman Sheikh, Lauri Mela, Norshahida Saba, K. Ruttik, R. Jäntti
In the case of indoor coverage provided by an outdoor base station, outdoor to indoor (O2I) penetration loss and additional attenuation due to the building’s inner infrastructure are crucial factors in determining the received signal level. Different frequency bands have a fundamental impact on the propagation characteristics of the signal. Several licensed frequency bands are available for the deployment of commercial fifth generation (5G) of cellular network, 1.8GHz, 3.5GHz, 6.5GHz and 26GHz frequency bands are among them. The aim of this work is to learn about the impact of O2I and inner wall penetration loss. A campaign of static measurement is performed at four earlier mentioned frequency bands in TUAS building at Aalto University, Finland. Interestingly, a general trend is found that doubling the frequency of operation adds nearly 6dB propagation loss, and almost 6dB additional attenuation due to building penetration and inner wall penetration is added for new building type. Similarly, for four times frequency transition overall additional path loss is around 24dB. These results provide insight information for the mobile network operators (MNOs), which are planning the frequency transition of the network.
{"title":"Outdoor to Indoor Path Loss Measurement at 1.8GHz, 3.5GHz, 6.5GHz, and 26GHz Commercial Frequency Bands","authors":"Muhammad Usman Sheikh, Lauri Mela, Norshahida Saba, K. Ruttik, R. Jäntti","doi":"10.1109/wpmc52694.2021.9700427","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700427","url":null,"abstract":"In the case of indoor coverage provided by an outdoor base station, outdoor to indoor (O2I) penetration loss and additional attenuation due to the building’s inner infrastructure are crucial factors in determining the received signal level. Different frequency bands have a fundamental impact on the propagation characteristics of the signal. Several licensed frequency bands are available for the deployment of commercial fifth generation (5G) of cellular network, 1.8GHz, 3.5GHz, 6.5GHz and 26GHz frequency bands are among them. The aim of this work is to learn about the impact of O2I and inner wall penetration loss. A campaign of static measurement is performed at four earlier mentioned frequency bands in TUAS building at Aalto University, Finland. Interestingly, a general trend is found that doubling the frequency of operation adds nearly 6dB propagation loss, and almost 6dB additional attenuation due to building penetration and inner wall penetration is added for new building type. Similarly, for four times frequency transition overall additional path loss is around 24dB. These results provide insight information for the mobile network operators (MNOs), which are planning the frequency transition of the network.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122715251","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700475
Ankit R. Patel, G. Trivedi, Dhaval R Vyas, Adriana-Simona Mihaita, S. Padmanaban
In recent years, trends towards user-centered technology are increasing due to various social, economic, and environmental aspects. Concurrently, the success of electromobility is highly dependent on how we provide the charging facility and the security of energy-trading gateways. In this paper, we propose a modeling framework that would address all these challenges and would be ready for real-life implementation when data becomes available. The proposed model works on a two-charging station methodology, which allows us to examine the mutual benefits of vehicle users and electricity supply entities. In addition, the massive data revolutions and blockchain technology are providing enough impetus for the success of the given framework. Undoubtedly, this study is unique and should be considered a milestone to reveal directions for further studies.
{"title":"Framework for User-Centered Access to Electric Charging Facilities via Energy-Trading Blockchain","authors":"Ankit R. Patel, G. Trivedi, Dhaval R Vyas, Adriana-Simona Mihaita, S. Padmanaban","doi":"10.1109/wpmc52694.2021.9700475","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700475","url":null,"abstract":"In recent years, trends towards user-centered technology are increasing due to various social, economic, and environmental aspects. Concurrently, the success of electromobility is highly dependent on how we provide the charging facility and the security of energy-trading gateways. In this paper, we propose a modeling framework that would address all these challenges and would be ready for real-life implementation when data becomes available. The proposed model works on a two-charging station methodology, which allows us to examine the mutual benefits of vehicle users and electricity supply entities. In addition, the massive data revolutions and blockchain technology are providing enough impetus for the success of the given framework. Undoubtedly, this study is unique and should be considered a milestone to reveal directions for further studies.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115979408","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700474
S. K. Vankayala, Swaraj Kumar, Ishaan Roy, D. Thirumulanathan, Seungil Yoon, Ignatius Samuel Kanakaraj
Radio maps are widely used in the network resource management of 5G communication systems. However, a frequent radio map update is expensive and inefficient in practice because of the need to collect measurements from many devices. In this paper, we propose a highly accurate deep learning technique to predict the propagation path loss from any point on a planar domain with respect to the transmitter. Our proposal adopts a generative adversarial network to yield precise path loss estimations which are very close to ray tracing simulations but are computationally more efficient.The use of our proposal offers a three-fold benefits to a firm in terms of commercialization: Dynamic estimation of radio map corresponding to the changes in the environment, zero-touch automation of radio map generation, and more importantly, the development of end-to-end AI based network planning solution.
{"title":"Radio Map Estimation Using a Generative Adversarial Network and Related Business Aspects","authors":"S. K. Vankayala, Swaraj Kumar, Ishaan Roy, D. Thirumulanathan, Seungil Yoon, Ignatius Samuel Kanakaraj","doi":"10.1109/wpmc52694.2021.9700474","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700474","url":null,"abstract":"Radio maps are widely used in the network resource management of 5G communication systems. However, a frequent radio map update is expensive and inefficient in practice because of the need to collect measurements from many devices. In this paper, we propose a highly accurate deep learning technique to predict the propagation path loss from any point on a planar domain with respect to the transmitter. Our proposal adopts a generative adversarial network to yield precise path loss estimations which are very close to ray tracing simulations but are computationally more efficient.The use of our proposal offers a three-fold benefits to a firm in terms of commercialization: Dynamic estimation of radio map corresponding to the changes in the environment, zero-touch automation of radio map generation, and more importantly, the development of end-to-end AI based network planning solution.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122843217","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700420
Ibraheem Shayea, Lida Kouhalvandi, M. Ergen, A. Alhammadi
In this paper, a dynamic-mobility robustness optimization (D-MRO) technique has been developed to dynamically estimate handover control parameters (HCPs) settings for each user individually. This technique is operating based on the weight function (WF), which operates as a function of user equipment’s (UE’s) signal to-interference-plus-noise-ratio (SINR), cells’ load, and UE’s mobility speed. To validate the compatibility of the proposed technique over various mobility conditions in the fifth generation (5G) network, the performance of the analytical HCPs estimation technique is compared with other mobility robustness optimization (MRO) techniques from the literature based on a simulation study. The simulation is executed by utilizing MATLAB software, and results are analyzed in terms of handover probability (HOP), handover ping-pong probability (HPPP), and radio link failure (RLF). Simulation results show that the proposed optimization technique contributes significantly in addressing the problem of the existing MRO solutions at various mobile speed scenarios and the presented method outperforms the nominated performances.
{"title":"Dynamic Mobility Robustness Optimization Based on Individual Weight Function for 5G Networks and Beyond","authors":"Ibraheem Shayea, Lida Kouhalvandi, M. Ergen, A. Alhammadi","doi":"10.1109/wpmc52694.2021.9700420","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700420","url":null,"abstract":"In this paper, a dynamic-mobility robustness optimization (D-MRO) technique has been developed to dynamically estimate handover control parameters (HCPs) settings for each user individually. This technique is operating based on the weight function (WF), which operates as a function of user equipment’s (UE’s) signal to-interference-plus-noise-ratio (SINR), cells’ load, and UE’s mobility speed. To validate the compatibility of the proposed technique over various mobility conditions in the fifth generation (5G) network, the performance of the analytical HCPs estimation technique is compared with other mobility robustness optimization (MRO) techniques from the literature based on a simulation study. The simulation is executed by utilizing MATLAB software, and results are analyzed in terms of handover probability (HOP), handover ping-pong probability (HPPP), and radio link failure (RLF). Simulation results show that the proposed optimization technique contributes significantly in addressing the problem of the existing MRO solutions at various mobile speed scenarios and the presented method outperforms the nominated performances.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126456195","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700440
R. Miura, T. Matsuda, F. Ono, T. Matsumura, J. Suzuki, Tetsumi Takamori
This paper discusses a high altitude relay system (HARS) of command and telemetry links for UAVs deployed at lower altitude in wide area. We propose and design a multiple access scheme in space, frequency, and time domains to use the same frequency band for the user and feeder links by employing a multi-beam digital beamforming (DBF) antenna on board the high altitude platform station (HAPS).
{"title":"A Study on Spectrum Sharing for the User and Feeder Links of Command and Telemetry Communications for UAVs Using a High Altitude Relay System","authors":"R. Miura, T. Matsuda, F. Ono, T. Matsumura, J. Suzuki, Tetsumi Takamori","doi":"10.1109/wpmc52694.2021.9700440","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700440","url":null,"abstract":"This paper discusses a high altitude relay system (HARS) of command and telemetry links for UAVs deployed at lower altitude in wide area. We propose and design a multiple access scheme in space, frequency, and time domains to use the same frequency band for the user and feeder links by employing a multi-beam digital beamforming (DBF) antenna on board the high altitude platform station (HAPS).","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125045219","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700478
Shun Yoneda, Daisuke Inoue, M. Sawahashi, Satoshi Nagata
This paper presents the physical-layer cell identity (PCID) detection probability using polarization receiver diversity based on the primary and secondary synchronization signals (PSS and SSS) of the New Radio (NR) radio interface for 3GPP clustered delay line (CDL) channel models. We compare the PCID detection probability in the CDL-A, C, and E channel models considering the angle spread of departure and arrival with a tapped delay line (TDL) channel model to validate the PCID detection probability in the CDL channel models. We show that the frequency offset due to the relaxed frequency stability of a local oscillator of a set of user equipment is suppressed to a low level for the PCID detection probability in the CDL channel models. We also show that the PCID detection probability according to the root mean square delay spread is subject to the power delay profile of the CDL channel models. Finally, we show that a high PCID detection probability at the cumulative distribution of 90% is achieved at the average received signal-to-noise ratio (SNR) of approximately -7 dB to -4 dB and -12 dB for non-line-of-sight (NLOS) CDL-C and LOS CDL-E channel models, respectively.
{"title":"Physical Cell ID Detection Performance Using Polarization Receiver Diversity for NR in 3GPP CDL Channel Models","authors":"Shun Yoneda, Daisuke Inoue, M. Sawahashi, Satoshi Nagata","doi":"10.1109/wpmc52694.2021.9700478","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700478","url":null,"abstract":"This paper presents the physical-layer cell identity (PCID) detection probability using polarization receiver diversity based on the primary and secondary synchronization signals (PSS and SSS) of the New Radio (NR) radio interface for 3GPP clustered delay line (CDL) channel models. We compare the PCID detection probability in the CDL-A, C, and E channel models considering the angle spread of departure and arrival with a tapped delay line (TDL) channel model to validate the PCID detection probability in the CDL channel models. We show that the frequency offset due to the relaxed frequency stability of a local oscillator of a set of user equipment is suppressed to a low level for the PCID detection probability in the CDL channel models. We also show that the PCID detection probability according to the root mean square delay spread is subject to the power delay profile of the CDL channel models. Finally, we show that a high PCID detection probability at the cumulative distribution of 90% is achieved at the average received signal-to-noise ratio (SNR) of approximately -7 dB to -4 dB and -12 dB for non-line-of-sight (NLOS) CDL-C and LOS CDL-E channel models, respectively.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126771210","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 : 2021-12-14DOI: 10.1109/wpmc52694.2021.9700419
Yujia Li, Yu Chen, Hao Chen
Ultra-dense networks (UDNs) provide an effective way to improve network capacity and users’ quality of service (QoS). The discontinuous transmission (DTX) on the other hand improve networks’ energy efficiency. In this paper, we consider using power control to maximize the energy efficiency while guaranteeing the QoS in UDNs with DTX. Specifically, we first derive a new formula of the effective energy efficiency (EEE) in such networks. We propose a non-cooperative power control scheme to maximize the EEE and an algorithm to find the Nash equilibrium (NE). Simulation results show that our proposed power control scheme achieves a significant improvement in the EEE with DTX, compared to the situation without power control.
{"title":"Effective Energy-Efficient Non-Cooperative Power Control in UDNs with Discontinuous Transmission","authors":"Yujia Li, Yu Chen, Hao Chen","doi":"10.1109/wpmc52694.2021.9700419","DOIUrl":"https://doi.org/10.1109/wpmc52694.2021.9700419","url":null,"abstract":"Ultra-dense networks (UDNs) provide an effective way to improve network capacity and users’ quality of service (QoS). The discontinuous transmission (DTX) on the other hand improve networks’ energy efficiency. In this paper, we consider using power control to maximize the energy efficiency while guaranteeing the QoS in UDNs with DTX. Specifically, we first derive a new formula of the effective energy efficiency (EEE) in such networks. We propose a non-cooperative power control scheme to maximize the EEE and an algorithm to find the Nash equilibrium (NE). Simulation results show that our proposed power control scheme achieves a significant improvement in the EEE with DTX, compared to the situation without power control.","PeriodicalId":299827,"journal":{"name":"2021 24th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126665506","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}
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