611 citations · 2.4k across the 80 of their papers we have counts for
6 papers · 2 filters
On Optimum Causal Cognitive Spectrum Reutilization Strategy
Kasra Haghighi, Erik G. Ström, Erik Agrell
In this paper we study opportunistic transmission strategies for cognitive radios (CR) in which causal noisy observation from a primary user(s) (PU) state is available. PU is assum…
Bandlimited Intensity Modulation
Mehrnaz Tavan, Erik Agrell, Johnny Karout
In this paper, the design and analysis of a new bandwidth-efficient signaling method over the bandlimited intensity-modulated direct-detection (IM/DD) channel is presented. The cha…
The Channel Capacity Increases with Power
Erik Agrell
It is proved that for memoryless vector channels, maximizing the mutual information over all source distributions with a certain average power or over the larger set of source dist…
Optimizing Constellations for Single-Subcarrier Intensity-Modulated Optical Systems
Johnny Karout, Erik Agrell, Krzysztof Szczerba +1
We optimize modulation formats for the additive white Gaussian noise channel with nonnegative input, also known as the intensity-modulated direct-detection channel, with and withou…
Designing Power-Efficient Modulation Formats for Noncoherent Optical Systems
Johnny Karout, Erik Agrell, Krzysztof Szczerba +1
We optimize modulation formats for the additive white Gaussian noise channel with a nonnegative input constraint, also known as the intensity-modulated direct detection channel, wi…
Errata list for "Error Control Coding" by Lin and Costello
Erik Agrell
This document lists some errors found in the second edition of Error Control Coding by Shu Lin and Daniel J. Costello, Jr.