In-band full-duplex (IBFD) operation has emerged as an attractive solution for increasing the throughput of wireless communication systems and networks. With IBFD, a terminal is allowed to transmit receive simultaneously in same frequency band. This tutorial paper reviews main concepts IBFD wireless. One biggest practical impediments presence self-interference, i.e., interference that modem's transmitter causes its own receiver. surveys wide range self-interference mitigation techniques....

This paper deals with arbitrarily distributed finite-power input signals observed through an additive Gaussian noise channel. It shows a new formula that connects the input-output mutual information and minimum mean-square error (MMSE) achievable by optimal estimation of given output. That is, derivative (nats) respect to signal-to-noise ratio (SNR) is equal half MMSE, regardless statistics. relationship holds for both scalar vector signals, as well discrete-time continuous-time noncausal...

This paper studies randomly spread code-division multiple access (CDMA) and multiuser detection in the large-system limit using replica method developed statistical physics. Arbitrary input distributions flat fading are considered. A generic detector form of posterior mean estimator is applied before single-user decoding. The can be particularized to matched filter, decorrelator, linear minimum mean-square error (MMSE) detector, jointly or individually optimal others. It found that output...

Consider the minimum mean-square error (MMSE) of estimating an arbitrary random variable from its observation contaminated by Gaussian noise. The MMSE can be regarded as a function signal-to-noise ratio (SNR) well functional input distribution (of to estimated). It is shown that concave in at any given SNR. For distribution, found infinitely differentiable all positive SNR, and fact real analytic SNR under mild conditions. key these regularity results posterior conditioned on through...

This work demonstrates the potential of deep reinforcement learning techniques for transmit power control in wireless networks. Existing typically find near-optimal allocations by solving a challenging optimization problem. Most these algorithms are not scalable to large networks real-world scenarios because their computational complexity and instantaneous cross-cell channel state information (CSI) requirement. In this paper, distributively executed dynamic allocation scheme is developed...

In cellular federated edge learning (FEEL), multiple devices holding local data jointly train a neural network by communicating updates with an access point without exchanging their samples. With very limited communication resources, it is beneficial to schedule the most informative updates. This paper focuses on FEEL gradient averaging over participating in each round of communication. A novel scheduling policy proposed exploit both diversity multiuser channels and "importance" devices'...

Millimeter wave provides a promising approach for meeting the ever-growing traffic demand in next generation wireless networks. It is crucial to obtain channel state information order perform beamforming and combining compensate severe path loss this band. In contrast lower frequencies, typical millimeter consists of few dominant paths. Thus it generally sufficient estimate gains, angles departure (AoDs), arrival (AoAs) those Proposed paper dual timescale model characterize abrupt changes...

The subject of this article is the long standing open problem developing a general capacity theory for wireless networks, particularly capable describing fundamental performance limits mobile ad hoc networks. A MANET peer-to-peer network with no preexisting infrastructure. MANETs are most single-hop, relay, interference, mesh, and star networks comprising special cases. lack has stunted development commercialization many types including emergency, military, sensor, community mesh Information...

Code-division multiple access (CDMA) is the basis of a family advanced air interfaces in current and future generation networks. The benefits promised by CDMA have not been fully realized partly due to prohibitive complexity optimal detection decoding many users communicating simultaneously using same frequency band. From both theoretical practical perspectives, this paper advocates new paradigm with sparse spreading sequences, which enables near-optimal multiuser belief propagation (BP)...

Classical multiuser information theory studies the fundamental limits of models with a fixed (often small) number users as coding blocklength goes to infinity. This paper proposes new paradigm, referred many-user theory, where is allowed grow blocklength. paradigm motivated by emerging systems massive in an area, such Internet Things. The focus this many-access channel model, which consists single receiver and many transmitters, whose increases unboundedly Moreover, unknown subset...

Compressed sensing deals with the reconstruction of a high-dimensional signal from far fewer linear measurements, where is known to admit sparse representation in certain space. The asymptotic scaling number measurements needed for as dimension increases has been studied extensively. This work takes fundamental perspective on problem inferring about individual elements given dimensions system become increasingly large. Using replica method, outcome any fixed collection shown be...

Next generation (5G) cellular networks are expected to be supported by an extensive infrastructure with many-fold increase in the number of cells per unit area compared today. The total energy consumption base transceiver stations (BTSs) is important issue for both economic and environmental reasons. In this paper, optimization-based framework proposed energy-efficient global radio resource management heterogeneous wireless networks. Specifically, stochastic arrivals known rates intended...

Interference between nodes is a critical impairment in mobile ad hoc networks. This paper studies the role of multiple antennas mitigating such interference. Specifically, network studied which receivers apply zero-forcing beamforming to cancel strongest interferers. Assuming with Poisson-distributed transmitters and independent Rayleigh fading channels, transmission capacity derived, gives maximum number successful transmissions per unit area. Mathematical tools from stochastic geometry are...

A nationwide interoperable public safety wireless broadband network is being planned by the First Responder Network Authority (FirstNet) under auspices of United States government. The shall provide needed coverage in wake an incident or a disaster. This paper proposes drone-assisted multi-hop device-to-device (D2D) communication scheme as means to extend over regions where it difficult deploy landbased relay. resource are shared using either time division frequency scheme. Efficient...

This correspondence gives a simple proof of Shannon's entropy-power inequality (EPI) using the relationship between mutual information and minimum mean-square error (MMSE) in Gaussian channels.

Linear parallel interference cancellation (PIC) schemes are described and analyzed using matrix algebra. It is shown that the linear PIC, whether conventional or weighted, can be seen as a filter applied directly to chip-matched filtered received signal vector. An expression for exact bit-error rate (BER) obtained, conditions on eigenvalues of code correlation weighting factors ensure convergence derived. The close relationship between multistage PIC steepest descent method (SDM) minimizing...

Following the discovery of a fundamental connection between information measures and estimation in Gaussian channels, this paper explores counterpart those results Poisson channels. In continuous-time setting, received signal is doubly stochastic point process whose rate equal to input plus dark current. It found that, regardless statistics input, derivative input-output mutual with respect intensity additive current can be expressed as expected difference logarithm its noncausal conditional...

This paper studies a nonlinear vector precoding scheme which inverts the wireless multiple-input multiple-output (MIMO) channel at transmitter so that simple symbol-by-symbol detection can be used in lieu of sophisticated multiuser receiver. In particular, transmit energy is minimized by relaxing transmitted symbols to larger alphabet for precoding, preserves minimum signaling distance. The so-called replica method analyze average savings with random MIMO channels large-system limit. It...

Fast and efficient discovery of all neighboring nodes by a node new to neighborhood is critical the deployment wireless ad hoc networks. Different than conventional ALOHA-type random access schemes, this paper assumes that in simultaneously send their unique on-off signatures known receive node. In particular, transmitter does not transmit any energy during an "off" mini-slot its signature sequence. The received signal can be viewed as outcome sequence tests over mini-slots, where test...

1. Introduction 2: Basic Information and Estimation Measures 3: Properties of the MMSE in Gaussian Noise 4: Mutual MMSE: Relationship 5: Discrete- Continuous-time Channels 6: Entropy, Relative Fisher Information, Mismatched 7: Applications I-MMSE 8: Poisson Models 9: Beyond 10: Outlook. Acknowledgements. Appendices. References.

The memoryless additive inverse Gaussian noise channel model describing communication based on the exchange of chemical molecules in a drifting liquid medium is investigated for situation simultaneously an average-delay and peak-delay constraint. Analytical upper lower bounds its capacity bits per molecule use are presented. These shown to be asymptotically tight, i.e., delay constraints tending infinity with their ratio held constant (or drift velocity fluid infinity), asymptotic derived...

This paper proves large-system asymptotic normality of the output a family linear multiuser receivers that can be arbitrarily well approximated by polynomial receivers. encompasses single-user matched filter, decorrelator, minimum mean square error (MMSE) receiver, parallel interference cancelers, and many other interest. Both with without assumption perfect power control, we show decision statistic for each user converges to Gaussian random variable in distribution as number users spreading...