Channel State Information (CSI) Feedback plays a crucial role in achieving higher gains through beamforming. However, for massive MIMO system, this feedback overhead is huge and grows linearly with the number of antennas. To reduce several compressive sensing (CS) techniques were implemented recent years but these are often iterative computationally complex to realize power-constrained user equ...

We investigate the scalability of feedback in multicast communication and propose a new method of probabilistic feedback based on exponentially distributed timers. By analysis and simulation for up to 106 receivers we show that feedback implosion is avoided with good latency performance obtained. The mechanism is robust against the loss of feedback messages and robust against homogeneous and he...

introduction: the feedback provided by auditory apparatus equips normal hearing people with an important controlling mechanism over the speech production processes. the speech of hearing-impaired children is both perceptually and acoustically abnormal. this study tried to compare the formant frequencies of three long vowels in persian-speaking children who used cochlear implant and those who we...

mineral paragenesis of rodingitized basic rocks of iranian ophiolites are presented and metasomatic reactions between ca+2 bearing aqueous fluids issued during serpentinization of host ultramafic rock – with magmatic minerals of basic rocks leading to present paragenesis of rodingites are discussed. it is concluded that ca+2 rich aqueous fluid in equilibrium with serpentinite has high ca+2 chem...

This paper presents a new feedback congestion control mechanism for the flow control in ATM networks. This new mechanism operates based on a statistical feedback scheme. By limiting cell transmission accelerations, the new mechanism can guarantee that there are no switch buffer overflows . Analysis and simulation results show that the proposed mechanism is effective.