Security is an essential requirement in mobile ad hoc network (MANETs). Compared to wired networks, MANETs are more vulnerable to security attacks due to the lack of a trusted centralized authority and limited resources. Attacks on ad hoc networks can be classified as passive and active attacks,...

In the network research area, implementation of a whole network in real world is not easily possible because establishing of network in a real world is very difficult. A single test bed containing multiple networked computers, routers and data links to validate and verify a certain network...

Along with development of internet and web, online social network are becoming important information propagation platform with hundreds of million users worldwide. Online social network attract thousands of million users to use it every day for different purpose. So that tons of user behavior...

Purpose: In this study, the authors evaluate seven calendar anomalies’–the day of the week, weekend, the month of the year, January, the turn of the month (TOM), Ramadan and Eid festivals–effects in both the conventional and Islamic stock indices of Bangladesh. Also, the authors examine...

In the context of the rapidly growing demand for green investments and the need to combat climate change, this study contributes to the emerging literature on green investments by exploring the time-frequency connectedness between green bonds (GBs) and green equities. Specifically, we examine...

Amid a shifting global energy landscape driven by concerns about climate change and fossil fuel depletion, there is a heightened need to move toward sustainable energy sources. Although there has been a significant increase in investments in renewable energy (RE) globally, there is still a...