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Due to heavy congestion in lower frequency bands, engineers are looking for new frequency bands to support new services that require higher data rates, which in turn needs broader bandwidths. To meet this requirement, extremely high…

信号处理 · 电气工程与系统科学 2017-10-30 S Md Sakir Hossain , Md Atiqul Islam

The performance of earth-to-satellite link largely depends on various environmental factors like rain, fog, cloud, and atmospheric effects like ionospheric and tropospheric scintillation. In this paper, the tropospheric scintillation of…

信号处理 · 电气工程与系统科学 2017-11-30 Md. Sakir Hossain , Md Abdus Samad

Due to the extensive use of lower frequency bands & huge demand of large bandwidth in satellite communications, engineers need to use the higher frequency bands such as Ku to Ka bands. However, the rain attenuation is severe in these bands.…

大气与海洋物理 · 物理学 2021-09-17 Jasmul Alam , Md. Sakir Hossain , Jauwad Ansari , Abu Zafar Md. Imran , Imtiaz Kamrul

In Bangladesh, a nation vulnerable to climate change, accurately quantifying the risk of extreme weather events is crucial for planning effective adaptation and mitigation strategies. Downscaling coarse climate model projections to finer…

大气与海洋物理 · 物理学 2024-08-22 Anamitra Saha , Sai Ravela

As climate change drives an increase in global extremes, it is critical for Bangladesh, a nation highly vulnerable to these impacts, to assess future risks for effective adaptation and mitigation planning. Downscaling coarse-resolution…

大气与海洋物理 · 物理学 2024-12-24 Anamitra Saha , Sai Ravela

Temperature and rainfall have a significant impact on economic growth as well as the outbreak of seasonal diseases in a region. In spite of that inadequate studies have been carried out for analyzing the weather pattern of Bangladesh…

Drought poses a pervasive environmental challenge in Bangladesh, impacting agriculture, socio-economic stability, and food security due to its unique geographic and anthropogenic vulnerabilities. Traditional drought indices, such as the…

机器学习 · 计算机科学 2025-06-06 Tonmoy Paul , Mrittika Devi Mati , Md. Mahmudul Islam

Accurate climate forecasting is vital for Bangladesh, a region highly susceptible to climate change impacts on temperature and rainfall. Existing models often struggle to capture long-range dependencies and complex temporal patterns in…

机器学习 · 计算机科学 2025-10-29 Usman Gani Joy , Shahadat kabir , Tasnim Niger

Rainfall is an essential hydrological component, and most of the economic activities of an agrarian country like Bangladesh depend on rainfall. An accurate rainfall forecast can help make necessary decisions and reduce the damages caused by…

应用统计 · 统计学 2025-11-17 Rezoanoor Rahman , Fariha Taskin

Bangladesh exhibits marked year-to-year variability in dengue, partly driven by meteorological fluctuations that shape \textit{Aedes} breeding-site persistence, mosquito development, and transmission. We exploit a contrast between Dhaka…

综合数学 · 数学 2026-04-22 Faizunnesa Khondaker , Md. Kamrujjaman

In this paper, we apply the ITU-R P.618-8 model with data from the ITU-R P.837-7, Tropical Rain Measuring Mission (TRMM) and Global Precipitation Mission (GPM) satellite to determine the level of attenuation and available link margin for a…

信号处理 · 电气工程与系统科学 2023-04-04 Osoro B. Ogutu

Terahertz (THz) communications have emerged as a promising technology for 6G networks due to their potential for achieving terabit-per-second data rates. However, the impact of rainfall on THz channel characteristics remains incompletely…

The risk of extreme storm tides to Bangladesh's low-lying and densely populated coastal regions, already vulnerable to tropical cyclones, remains poorly quantified under a warming climate. Here, using a statistical-physical downscaling…

大气与海洋物理 · 物理学 2025-01-06 Jiangchao Qiu , Sai Ravela , Kerry Emanuel

Deep learning models for precipitation forecasting often function as black boxes, limiting their adoption in real-world weather prediction. To enhance transparency while maintaining accuracy, we developed an interpretable deep learning…

机器学习 · 计算机科学 2025-11-17 Tanmay Ghosh , Shaurabh Anand , Rakesh Gomaji Nannewar , Nithin Nagaraj

As demand for broadband service increases in emerging regions, high-capacity wireless links can accelerate and cost-reduce the deployment of new networks (both backhaul and customer site connection). Such links are increasingly common in…

网络与互联网体系结构 · 计算机科学 2016-09-05 Paul M. Aoki

The Terahertz (THz) frequency band offers a wide range of bandwidths, from tens to hundreds of gigahertz (GHz) and also supports data speeds of several terabits per second (Tbps). Because of this, maintaining THz channel reliability and…

The research assesses soil salinity in the southwest coastal region of Bangladesh, collecting a total of 162 topsoil samples between March 1 and March 9, 2024, and processing them following the standard operating procedure for soil…

The great rivers of Bangladesh, arteries of commerce and sustenance, are also agents of relentless destruction. Each year, they swallow whole villages and vast tracts of farmland, erasing communities from the map and displacing thousands of…

计算机视觉与模式识别 · 计算机科学 2025-10-21 M Saifuzzaman Rafat , Mohd Ruhul Ameen , Akif Islam , Abu Saleh Musa Miah , Jungpil Shin

In this paper we present results from the NEFOCAST project, funded by the Tuscany Region, aiming at detecting and estimating rainfall fields from the opportunistic use of the rain-induced excess attenuation incurred in the downlink channel…

信号处理 · 电气工程与系统科学 2019-07-25 Filippo Giannetti , Marco Moretti , Ruggero Reggiannini , Attilio Vaccaro

Rain introduces broadband and frequency-selective attenuation in wideband terahertz (THz) links, making it necessary to identify a compact spectral descriptor that captures how the dominant loss region evolves with rainfall conditions. This…

应用物理 · 物理学 2026-04-20 Yuheng Song , Wanzhu Chang , Kefeng Huang , Kaixin Sun , Chen Yao , Jianjun Ma
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