2023 Wireless Telecommunications Symposium (WTS)最新文献_第2页

Elbow estimation -based source enumeration method for LPI/LPD signals 基于肘部估计的LPI/LPD信号源枚举方法

2023 Wireless Telecommunications Symposium (WTS) Pub Date : 2023-04-19 DOI: 10.1109/WTS202356685.2023.10131679

Risto Sarjonen, M. Höyhtyä

{"title":"Elbow estimation -based source enumeration method for LPI/LPD signals","authors":"Risto Sarjonen, M. Höyhtyä","doi":"10.1109/WTS202356685.2023.10131679","DOIUrl":"https://doi.org/10.1109/WTS202356685.2023.10131679","url":null,"abstract":"Spectrum awareness is important in multiple military and civilian applications, while various low probability of detection (LPD) waveforms have been developed to hide transmissions. In order to detect an LPD signal, one must be able to deal with very low signal-to-noise ratios (SNRs) and small numbers of temporal samples (snapshots). The reason for the limited availability of snapshots is that the carrier frequencies of LPD signals are usually unknown. Specifically, unknown carrier frequencies necessitate fast scans over wide frequency ranges, whereby only few snapshots per frequency bin are obtained. We have developed a new non-parametric source enumeration method, whose novelty lies in the fact that it uses elbow estimation to separate the signal and noise eigenvalues from each other. Accordingly, we call the developed method elbow-based source enumeration (EBSE). We compared the performance of EBSE against three state-of-the-art methods, namely Akaike’s information criterion (AIC), the minimum description length (MDL) and the accumulated ratio of eigenvalue gaps (AREG). The three simulations we used for performance comparisons had small numbers of snapshots, and the main advantage of EBSE was that it always had the smallest absolute error in the small-SNR regime.","PeriodicalId":405032,"journal":{"name":"2023 Wireless Telecommunications Symposium (WTS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133993362","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

WTS 2023 2023 Cover Page WTS 2023 2023封面

2023 Wireless Telecommunications Symposium (WTS) Pub Date : 2023-04-19 DOI: 10.1109/wts202356685.2023.10131808

引用次数: 0

BER Analysis of Cross-QAM Uncoded Space-Time Labeling Diversity with Three Transmit Antennas in Nakagami-m Fading Channels Nakagami-m衰落信道中三发射天线交叉qam无编码空时标记分集的误码率分析

2023 Wireless Telecommunications Symposium (WTS) Pub Date : 2023-04-19 DOI: 10.1109/WTS202356685.2023.10131720

D. Ayanda, Marcello Costa, B. S. D. Silva, DérDércio M. Mathe, Shaheen Solwa

{"title":"BER Analysis of Cross-QAM Uncoded Space-Time Labeling Diversity with Three Transmit Antennas in Nakagami-m Fading Channels","authors":"D. Ayanda, Marcello Costa, B. S. D. Silva, DérDércio M. Mathe, Shaheen Solwa","doi":"10.1109/WTS202356685.2023.10131720","DOIUrl":"https://doi.org/10.1109/WTS202356685.2023.10131720","url":null,"abstract":"This paper presents a new cross quadrature amplitude modulation (XQAM) technique for three transmit antennas uncoded space-time labeling diversity (USTLD) over Nakagami-m fading channels. A heuristic algorithm is employed in designing the second and third optimized mapper for 32-XQAM and 128-XQAM. The study exploits an approximate analytical expression to derive bit error rate (BER). The average BER is obtained by applying probability density function and moment generating functions. Monte carlo simulation results show a tight fit with the theoretical approximate analysis in the high signal-to-noise ratio (SNR). The BER performance comparison of XQAM USTLD is carried out based on rate one with the existing two transmit antennas XQAM USTLD for link reliability which shows significant improvement. In addition, frame error rate (FER) performance analysis is carried out for real-world wireless communication where the degradation of error performance due to dropped frames is the same for one or many bit errors within a frame. Finally, XQAM transmission performance evaluation is carried out with rectangular QAM (RQAM), amplitude phase-shift scheme (APSK) and phase-shift scheme (PSK) transmission schemes.","PeriodicalId":405032,"journal":{"name":"2023 Wireless Telecommunications Symposium (WTS)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123365883","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

A comparison of power allocation mechanisms for 5G D2D mobile communication networks 5G D2D移动通信网络功率分配机制比较

2023 Wireless Telecommunications Symposium (WTS) Pub Date : 2023-04-19 DOI: 10.1109/WTS202356685.2023.10131761

D. Georgiadis, E. Politi, G. Dimitrakopoulos

{"title":"A comparison of power allocation mechanisms for 5G D2D mobile communication networks","authors":"D. Georgiadis, E. Politi, G. Dimitrakopoulos","doi":"10.1109/WTS202356685.2023.10131761","DOIUrl":"https://doi.org/10.1109/WTS202356685.2023.10131761","url":null,"abstract":"The ever-increasing demands for higher data trans-mission speeds, channel reliability and less energy consumption push the scientific community to discover new methods to manage resources of modern networks, without degrading the quality of communications. Modern cellular systems of the fifth generation (5G) are internationally recognized for their excellent performance and for the innovative technologies that they apply. The Device-to-Device (D2D) protocol has been established among the technologies of 5G, for the fast and secure direct connections between terminals and the overall capabilities that it provides. The protocol is able to offload the network and reorganize connections in order to save system resources, while also supporting decentralized communications. The present work aims to highlight the importance of D2D communications in 5G cellular networks by assessing the performance of four well known energy resource allocation mechanisms in scenarios with environmental constraints. Results of our simulations showcase that D2D Communication technologies can improve the energy efficiency and increase the total throughput output of existing cellular networks.","PeriodicalId":405032,"journal":{"name":"2023 Wireless Telecommunications Symposium (WTS)","volume":"657 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117108056","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

Concurrent Transmitting LiDAR Sensor with Bipolar Optical Codes 双极光码并发发射激光雷达传感器

2023 Wireless Telecommunications Symposium (WTS) Pub Date : 2023-04-19 DOI: 10.1109/WTS202356685.2023.10131707

Gunzung Kim, Jeongsook Eom, Yongwan Park

引用次数: 0