Abstract The transmission of differentially encoded offset quadrature phase shift keying on gamma-shadowed Nakagamim fading channel is discussed in this paper. This leads to the formation of coherent detection of differentially encoded quadrature phase. The carrier signal recovery imperfection has been considered in the phase error in the phase-locked loop. The Tikhon distribution represents the phase error. The bit error probability... The transmission of differentially encoded offset quadrature phase shift keying on gamma-shadowed Nakagamim fading channel is discussed in this paper. This leads to the formation of coherent detection of differentially encoded quadrature phase. The carrier signal recovery imperfection has been considered in the phase error in the phase-locked loop. The Tikhon distribution represents the phase error. The bit error probability expressions (BEPs) are discussed and the numerical results are provided. Read More Read Less

Abstract QoS isn’t something which we configure on our Cisco router. Instead, it’s an umbrella term that encompasses a wide range of mechanisms used to control traffic patterns on the network. QoS has already proven to be the go-to technology for converging voice, video and data networks. But as business needs change, so do demands for QoS technologies. This paper will... QoS isn’t something which we configure on our Cisco router. Instead, it’s an umbrella term that encompasses a wide range of mechanisms used to control traffic patterns on the network. QoS has already proven to be the go-to technology for converging voice, video and data networks. But as business needs change, so do demands for QoS technologies. This paper will cover the basics of QoS, its needs, and a few types of available QoS mechanisms. Read More Read Less

Abstract The sound of an instrument is often described as a “complex” sound. A complex sound can be broken down into pure (simple) sounds. In many cases, a sound can be thought of as consisting of fundamental and harmonics that provide its characteristic characteristics, depending on the number of harmonics, their distribution, their amplitude and their envelope. The human auditory system’s... The sound of an instrument is often described as a “complex” sound. A complex sound can be broken down into pure (simple) sounds. In many cases, a sound can be thought of as consisting of fundamental and harmonics that provide its characteristic characteristics, depending on the number of harmonics, their distribution, their amplitude and their envelope. The human auditory system’s ability to perceive pitch is related to the harmonics in a complex sound. In this paper, we will look at how the distribution of harmonics within a complex sound influences pitch perception. We will use spectral analysis and listening tests to do this. Particular attention will be paid to the phenomenon of “missing fundamentals.” Read More Read Less