Nirwan Ansari

TL;DR: An adaptive beam that adapts its divergence angle according to the receiver aperture diameter and the communication distance to improve the received power and ease the alignment between the communicating optical transceivers in a free-space optical communications (FSOC) system for high-speed trains (HSTs).

TL;DR: This paper proposes the distributed diffusion-based mesh (DDM) algorithm for distributed mesh construction that instructs distributed nodes on how to make the desired connections with their neighbors and introduces the concept of connection rule, which defines allowed connections at each mesh node combined with a token signal that initiates and controls the structure and boundaries of the resulting mesh.

TL;DR: Simulations based on a real MPEG compressed movie sequence of Star Wars have demonstrated that the simple model can capture the ACF and the marginal CDF very closely.

TL;DR: A content-type based selective DRE is proposed, which deploys DRE selectively on the contents which have the most opportunities for redundant content identification and can achieve almost the same bandwidth savings as that of standard DRE with less computation and smaller memory.

TL;DR: A novel scheduling algorithm is proposed based on graph-coloring theory and uses a descending order of a clique (a set of contending nodes) in a graph to resolve contention of measurement tasks.