50 citations · 66 across the 14 of their papers we have counts for
16 papers · 1 filter
Optimal Phase Design for RIS Channel Estimation
Chelsea L. Miller, Peter J. Smith, Pawel A. Dmochowski
We develop an optimal version of a prior two-stage channel estimation protocol for RIS-assisted channels. The new design uses a modified DFT matrix (MDFT) for the training phases a…
Efficient Optimization Techniques for RIS-aided Wireless Systems
Ikram Singh, Peter J. Smith, Pawel A. Dmochowski +1
The objective of this paper is to develop simple techniques to enhance the performance of multi-user RIS aided wireless systems. Specifically, we develop a novel technique called \…
Phase Dependent Loss Analysis for RIS Systems
Ikram Singh, Peter J. Smith, Pawel A. Dmochowski
In this paper we focus on phase dependent loss (PDL), an important aspect of reconfigurable intelligent surfaces (RIS) where the signals reflected from the RIS elements are attenua…
Optimal SNR Analysis for Single-user RIS Systems in Ricean and Rayleigh Environments
Ikram Singh, Peter J. Smith, Pawel A. Dmochowski
We present an analysis of the optimal uplink (UL) SNR of a SIMO Reconfigurable Intelligent Surface (RIS)-aided wireless link. We assume that the channel between base station (BS) a…
Tight Bounds on the Optimal UL Sum-Rate of MU RIS-aided Wireless Systems
Ikram Singh, Peter J. Smith, Pawel A. Dmochowski
The objective of this paper is to develop simple techniques to bound the optimal uplink sum-rate of multi-user RIS-aided wireless systems. Specifically, we develop a novel techniqu…
Space-Constrained Arrays for Massive MIMO
Chelsea L. Miller, Peter J. Smith, Pawel A. Dmochowski
We analyse the behaviour of a massive multi-user MIMO (MU-MIMO) system comprising a base station (BS) equipped with one of five different antenna topologies for which the spatial a…