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Most of the recent advances in the design of high-speed wireless systems are based on information-theoretic principles that demonstrate how to efficiently transmit long data packets. However, the upcoming wireless systems, notably the 5G…

Information Theory · Computer Science 2016-03-02 Giuseppe Durisi , Tobias Koch , Petar Popovski

Existing works on cell-free systems consider either coherent or non-coherent downlink data transmission and a network deployment with a single central processing unit (CPU). While it is known that coherent transmission outperforms…

Information Theory · Computer Science 2022-12-29 Roberto P. Antonioli , Iran M. Braga , Gabor Fodor , Yuri C. B. Silva , Walter C. Freitas

We study the performance scaling laws for electrical-domain combining in photodetector (PD) array-based receivers employing intensity modulation and direct detection, taking into account the inherent square-law relationship between the…

Signal Processing · Electrical Eng. & Systems 2026-01-23 Aravindh Krishnamoorthy , Robert Schober , Harald Haas

We consider the problem of covert communication over wireless adhoc networks in which (roughly) $n$ legitimate nodes (LNs) and $n^{\kappa}$ for $0<\kappa<1$ non-communicating warden nodes (WNs) are randomly distributed in a square of unit…

Information Theory · Computer Science 2019-07-01 Kang-Hee Cho , Si-Hyeon Lee , Vincent Y. F. Tan

The secrecy performance in both near-field and far-field communications is analyzed using two fundamental metrics: the secrecy capacity under a power constraint and the minimum power requirement to achieve a specified secrecy rate target.…

Information Theory · Computer Science 2025-04-11 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

Energy Harvesting (EH) has emerged as a promising technique for Green Communications and it is a novel technique to prolong the lifetime of the wireless networks with replenishable nodes. In this paper, we consider the energy shortage…

Information Theory · Computer Science 2021-04-07 Mahmood Mohassel Feghhi , Aliazam Abbasfar , Mahtab Mirmohseni

We present nonasymptotic upper and lower bounds on the maximum coding rate achievable when transmitting short packets over a Rician memoryless block-fading channel for a given requirement on the packet error probability. We focus on the…

Information Theory · Computer Science 2017-12-19 Johan Östman , Giuseppe Durisi , Erik G. Ström , Mustafa C. Coşkun , Gianluigi Liva

Synchronization is a fundamental enabler for low-power backscatter communication systems, where passive or semi-passive tags modulate ambient RF signals for ultra-low-power data transfer. In this survey, we review recent advances in…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-03 Wenyuan Jiang , Shuo Guo

One of the primary challenges in short packet ultra-reliable and low-latency communications (URLLC) is to achieve reliable channel estimation and data detection while minimizing the impact on latency performance. Given the small packet size…

Information Theory · Computer Science 2024-08-27 Canjian Zheng , Fu-Chun Zheng , Jingjing Luo , Pengcheng Zhu , Xiaohu You , Daquan Feng

The achievable information rates of optical communication networks have been widely increased over the past four decades with the introduction and development of optical amplifiers, coherent detection, advanced modulation formats, and…

Information Theory · Computer Science 2017-05-16 Tianhua Xu

Wirelessly powered communications will entail short packets due to naturally small payloads, low-latency requirements and/or insufficient energy resources to support longer transmissions. In this paper, a wirelessly powered communication…

Information Theory · Computer Science 2016-11-03 Talha Ahmed Khan , Robert W. Heath , Petar Popovski

Wireless power transfer (WPT) technologies are becoming ubiquitous, but unlike wire technologies, they do not allow efficient energy transfer through barely transparent barriers. The proposed solutions to this issue rely on resonantly…

Optics · Physics 2019-09-16 Alex Krasnok

Detecting coherence transfer in complex quantum networks can be challenging due to uncharacterized experimental conditions and limited system access. Here, we use static and dynamic coherence features to introduce a nonlinear criterion for…

We consider a cognitive network consisting of n random pairs of cognitive transmitters and receivers communicating simultaneously in the presence of multiple primary users. Of interest is how the maximum throughput achieved by the cognitive…

Information Theory · Computer Science 2016-11-18 Mai Vu , Natasha Devroye , Masoud Sharif , Vahid Tarokh

Quantum Energy Teleportation (QET) constitutes a paradigm-shifting protocol that permits the activation of local vacuum energy through the consumption of pre-existing entanglement and classical communication. Nevertheless, the…

Quantum Physics · Physics 2026-01-27 M. Y. Abd-Rabbou , Irfan Siddique , Saeed Haddadi , Cong-Feng Qiao

Capacity scaling of a large hybrid network with unit node density, consisting of $n$ wireless ad hoc nodes, base stations (BSs) equipped with multiple antennas, and one remote central processor (RCP), is analyzed when wired backhaul links…

Information Theory · Computer Science 2014-07-29 Cheol Jeong , Won-Yong Shin

An asymptotic scaling theory is presented using the conceptual basis of trapping-free subspace (i.e., orthogonal subspace) to establish the generic mechanism of optimal efficiency of excitation energy transfer (EET) in light-harvesting…

Quantum Physics · Physics 2013-05-16 Jianlan Wu , Jianshu Cao , Robert J. Silbey

Grant-free protocols exploiting compressed sensing (CS) multi-user detection (MUD) are appealing for solving the random access problem in massive machine-type communications (mMTC) with sporadic device activity. Such protocols would greatly…

Information Theory · Computer Science 2022-05-03 Onel L. A. López , Glauber Brante , Richard D. Souza , Markku Juntti , Matti Latva-aho

A new direct-detection-compatible signalling scheme is proposed for fiber-optic communication over short distances. Controlled inter-symbol interference is exploited to extract phase information, thereby achieving spectral efficiencies…

Information Theory · Computer Science 2021-10-26 Amir Tasbihi , Frank R. Kschischang

An intuitive overview of the scalability of a variety of types of wireless networks is presented. Simple heuris- tic arguments are demonstrated here for scaling laws presented in other works, as well as for conditions not previously…

Information Theory · Computer Science 2016-11-26 Linda Zeger , Muriel Médard