Coexistence in molecular communications

Wireless communications and coexistence for smart environments

Coexistence of Systems with Different Multicarrier Waveforms in LSA Communications

We study the coexistence of different multicarrier waveforms such as orthogonal frequency division multiplexing (OFDM), filter-bank multicarrier (FBMC) and universal-filtered multicarrier (UFMC) waveforms in licensed shared access (LSA) for next-generation communication systems. The fundamental changes required in the existing physical layer using OFDM towards a hybrid physical layer (either OF...

Dynamical coexistence of phases in molecular clusters

Two solid structures, a bcc orientationally disordered phase and a strained monoclinic orientationally ordered phase, may coexist for clusters of octahedral molecules. However, this coexistence is more difficult to observe in computer simulations of SF6 clusters than of TeF6 clusters although the SF6 and TeF6 molecules have the same symmetry. This study finds why this difference occurs. On the ...

Spatial Diversity in Molecular Communications

In this work, spatial diversity techniques in the area of multiple-input multiple-output (MIMO) diffusion-based molecular communications (DBMC) are investigated. For transmitterside spatial coding, Alamouti-type coding and repetition MIMO coding are proposed and analyzed. At the receiver-side, selection diversity, equal-gain combining, and maximum-ratio combining are studied as combining strate...

Indoor Wireless Communications: Capacity and Coexistence on the Unlicensed Bands

Ubiquitous computing requires anytime, anywhere connectivity, leading to a spectrum crowded with users seeking reliable, high bit-rate communications in potentially dense geographies, especially in indoor environments. The amount of frequency spectrum available to Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) is limited, with no relief in sight. As Wireless LANs...