Gossiping is an extensively investigated information dissemination process. In gossiping, every vertex holds a message which has to be transmitted to all other vertices. This paper deals with k-failure tolerant gossiping, which investigates the minimum number of transmissions (calls) required by the communication process, provided that at most k transmissions may fail. We show new bounds for th...

Two properties of optical transmissions, namely, unidirectional propagation and predictable propagation delay, make it possible to pipeline packet transmissions in alloptical networks. In this paper, we study the problem of scheduling All-to-All Personalized Communication (AAPC) in unidirectional TDM/WDM rings with pipelined transmissions, which can achieve a much higher bandwidth utilization t...

The diverse design freedom and exotic electromagnetic properties of metasurfaces enable them to achieve unprecedented capability superiority with regard conventional optical elements. Herein, a bifunctional microwave metasurface an asymmetric bidirection transmission phase that can be controlled is reported. proposed composed bilayered double-arrow-shaped structures sandwiching subwavelength me...