The next generation wireless networks will combine high-speed mobile communications with the current Internet architecture to create novel ways to communicate, access information, transact business, and provide entertainment. The goal is to reduce the distinction between wireline and wireless networks, and provide any kind of service to any kind of user at any location. Unlike the bandwidth in ...

A data center is a facility for housing computational and storage systems interconnected through a communication network called data center network (DCN). Due to a tremendous growth in the computational power, storage capacity and the number of inter-connected servers, the DCN faces challenges concerning efficiency, reliability and scalability. Although transmission control protocol (TCP) is a ...

With severe spectrum shortage and high capacity requirement in future cellular networks, millimeter wave (mmWave) frequencies is a candidate for next-generation wireless networks. Due to the sensitivity of mmWave signals to blockage and using directional beamforming in both transmitter and receiver, novel models are needed to analyze cellular networks operating in mmWave frequencies. Base stati...

With the development of next generation mobile networks, new research challenges have emerged, and technologies been proposed to address them. On other hand, reconfigurable intelligent surface (RIS) technology is being investigated for partially controlling wireless channels. RIS a promising improving signal quality by scattering electromagnetic waves in nearly passive manner. Heterogeneous net...

Test washback is held to be complex and multifaceted in that a host of cultural, social, individual, test, and institutional factors are involved in shaping it. Thus far, the majority of washback studies have had as their focus the role of teachers in test washback or washback to teachers. How educational environments or institutions might function in isolation or in interaction with other fact...