On lattice codes for Gaussian interference channels

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LoRaWAN is a low-power wireless technology that provides long-range connectivity to battery-powered Internet of Things (IoT) devices. To minimize the energy consumption of the IoT nodes, LoRaWAN networks use for the uplink a pure non-slotted ALOHA multiple ...

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We start this short note by introducing two remarkable mathematical objects: the E8E8 root lattice Lambda8Lambda8 in 8-dimensional Euclidean space and the Leech lattice Lambda24Lambda24 in 24-dimensional space. These two lattices stand out among their lat ...

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Temporal modulation of components of electromagnetic systems provides an exceptional opportunity to engineer the response of those systems in a desired fashion, both in the time and frequency domains. For engineering time-modulated systems, one needs to th ...

The feedback sum-rate capacity is established for the symmetric

J

-user Gaussian multiple-access channel (GMAC). The main contribution is a converse bound that combines the dependence-balance argument of Hekstra and Willems (1989) with a variant of the f ...

A tunable and reconfigurable optical aggregation system is experimentally demonstrated. Optical Nyquist pulses are generated on multiple channels using a microresonator-based Kerr optical frequency comb and insertion of uniform lines by an intensity modula ...

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We characterize the irreducible polynomials that occur as the characteristic polynomial of an automorphism of an even unimodular lattice of a given signature, generalizing a theorem of Gross and McMullen. As part of the proof, we give a general criterion i ...

The joint design of input constellation and low-density parity-check (LDPC) codes to approach the symmetric capacity of the two-user Gaussian multiple access channel is studied. More specifically, multilevel coding is employed at each user to construct a h ...

On lattice codes for Gaussian interference channels

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Toward plasma drifts in EMC3: Implementation of gradient, divergence, and particle tracing schemes

On Speed and Advantage : Results in Information Velocity and Monitoring Problems

On the (Im)possibility of Commitment over Gaussian Unfair Noisy Channels

Gyrokinetic simulations of turbulence and zonal flows driven by steep profile gradients using a delta-f approach with an evolving background Maxwellian

A Low-Complexity LoRa Synchronization Algorithm Robust to Sampling Time Offsets

Spike-Based Sensing and Communication for Highly Energy-Efficient Sensor Edge Nodes

An All-Digital 1.25 Mbps 5-Subcarrier OFDM Backscatter Uplink with Delta-Sigma Modulation for Improved Spurious-Free Dynamic Range

Enhancing the Reliability of Dense LoRaWAN Networks With Multi-User Receivers

Stability properties of a projector-splitting scheme for dynamical low rank approximation of random parabolic equations

Almost impossible E_8 and Leech lattices

ComplexBeat: Breathing Rate Estimation from Complex CSI

Modified Joint Channel-and-Data Estimation for One-Bit Massive MIMO

Time-Varying Components for Enhancing Wireless Transfer of Power and Information

Sum-Rate Capacity for Symmetric Gaussian Multiple Access Channels With Feedback

Demonstration of Tunable Optical Aggregation of QPSK to 16-QAM Over Optically Generated Nyquist Pulse Trains Using Nonlinear Wave Mixing and a Kerr Frequency Comb

Compute-Forward for DMCs: Simultaneous Decoding of Multiple Combinations

Training Channel Selection for Learning-based 1-bit Precoding in Massive MU-MIMO

Monolithic piezoelectric control of soliton microcombs

Automorphisms of even unimodular lattices and equivariant Witt groups

LDPC Coded Multiuser Shaping for the Gaussian Multiple Access Channel