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This paper introduces the concept of autonomous microring arbitration, or wavelength arbitration, to address the challenge of multi-microring initialization in microring-based Dense-Wavelength-Division-Multiplexed (DWDM) transceivers. This…

Hardware Architecture · Computer Science 2025-03-27 Sunjin Choi , Vladimir Stojanović

Cell-free massive MIMO provides ubiquitous connectivity for multiple users, and implementation using radio stripes is very efficient. This paper proposes a parallel scheme for radio stripes to allow access point to do signal processing…

Information Theory · Computer Science 2020-12-22 Yihua Ma , Zhifeng Yuan , Guanghui Yu , Yijian Chen

Supporting immense throughput and ubiquitous connectivity holds paramount importance for future wireless networks. To this end, this letter focuses on how the spatial beams configured for legacy near-field (NF) users can be leveraged to…

Information Theory · Computer Science 2024-12-03 Jiasi Zhou , Cong Zhou , Yijie Mao , Chintha Tellambura

We consider the problem of decentralized power allocation for competitive rate-maximization in a frequency-selective Gaussian interference channel under bounded channel uncertainty. We formulate a distribution-free robust framework for the…

Information Theory · Computer Science 2015-03-17 Amod J. G. Anandkumar , Animashree Anandkumar , Sangarapillai Lambotharan , Jonathon A. Chambers

In this paper, we consider a multi-user multiple-input multiple-output (MIMO) system aided by multiple intelligent reflecting surfaces (IRSs) that are deployed to increase the coverage and, possibly, the rank of the channel. We propose an…

Information Theory · Computer Science 2020-12-22 Andrea Abrardo , Davide Dardari , Marco Di Renzo

The growing demand of high-bandwidth and low-latency information transfer in information and communication technologies such as data centres and in-vehicle networks has increased the importance of optical communication networks in recent…

Networking and Internet Architecture · Computer Science 2020-05-27 Daijiro Koyama , Yunzhuo Wang , Nobuyasu Shiga , Satoshi Yasuda , Nicolas Chauvet , Makoto Naruse

This paper investigates channel-aware decision fusion empowered by massive MIMO systems and reconfigurable intelligent surfaces (RIS). By integrating both, we aim to improve goal-oriented (fusion) performance despite the unique propagation…

Signal Processing · Electrical Eng. & Systems 2026-03-02 Domenico Ciuonzo , Alessio Zappone , Marco Di Renzo , Linlong Wu

We provide the solution for optimizing the power and resource allocation over block-fading relay-assisted broadcast channels in order to maximize the long term average achievable rates region of the users. The problem formulation assumes…

Information Theory · Computer Science 2012-05-02 Mohammad Shaqfeh , Hussein Alnuweiri

Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary. This paper advocates spread spectrum modulation for interstellar…

Instrumentation and Methods for Astrophysics · Physics 2013-07-30 David G. Messerschmitt

Millimeter wave is a promising technology for the next generation of wireless systems. As it is well-known for its high path loss, the systems working in this spectrum tend to exploit the shorter wavelength to equip the transceivers with a…

Information Theory · Computer Science 2018-01-12 Sina Shaham , Matthew Kokshoorn , Zihuai Lin , Ming Ding

Reconfigurable intelligent surfaces (RIS) can be crucial in next-generation communication systems. However, designing the {RIS} phases according to the instantaneous channel state information (CSI) can be challenging in practice due to the…

Information Theory · Computer Science 2023-09-26 Athira Subhash , Abla Kammoun , Ahmed Elzanaty , Sheetal Kalyani , Yazan H. Al-Badarneh , Mohamed-Slim Alouini

Continuous efforts have been devoted to integrate millimeter wave (mmWave) and terahertz (THz) bands into future communication standards in order to overcome the bandwidth shortage problem and achieve high data rates, primarily through…

Signal Processing · Electrical Eng. & Systems 2026-03-05 Sung Hyuck Hong , Junil Choi

This paper studies the beamforming design problem to achieve max-min fairness (MMF) in multibeam satellite communications. Contrary to the conventional linear precoding (NoRS) that relies on fully treating any residual interference as…

Information Theory · Computer Science 2020-03-17 Longfei Yin , Bruno Clerckx

The adoption of a Reconfigurable Intelligent Surface (RIS) for downlink multi-user communication from a multi-antenna base station is investigated in this paper. We develop energy-efficient designs for both the transmit power allocation and…

Information Theory · Computer Science 2022-06-23 Chongwen Huang , Alessio Zappone , George C. Alexandropoulos , Mérouane Debbah , Chau Yuen

This paper addresses the critical issue of spectrum scarcity and the need to support diverse services, including communication and learning tasks, by presenting a reconfigurable intelligent surface (RIS)-aided wireless network framework…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Saeid Pakravan , Mohsen Ahmadzadeh , Ming Zeng , Ghosheh Abed Hodtani , Xingwang Li , Ji Wang , Gongpu Wang

Reconfigurable intelligent surface (RIS) is a promising technology to enhance the spectral efficiency of wireless communication systems. By optimizing the RIS elements, the performance of the overall system can be improved. Yet, in contrast…

Information Theory · Computer Science 2023-10-13 Mohammad Soleymani , Ignacio Santamaria , Aydin Sezgin , Eduard Jorswieck

Modern radars often adopt multi-carrier waveform which has been widely discussed in the literature. However, with the development of civil communication, more and more spectrum resource has been occupied by communication networks. Thus,…

Signal Processing · Electrical Eng. & Systems 2022-12-26 Zhao Shan , Lei Wang , Pengfei Liu , Tianyao Huang , Yimin Liu

This paper describes a new approach for allocating resources to video streaming traffic. Assuming that the future channel state can be predicted for a certain time, we minimize the fraction of the bandwidth consumed for smooth streaming by…

Multimedia · Computer Science 2013-04-11 Sanam Sadr , Stefan Valentin

For multi-user transmissions over MIMO interference channels, each user designs the transmit covariance matrix to maximize its information rate. When passive radio-frequency (RF) energy harvesters are present in the network, the…

Information Theory · Computer Science 2017-04-14 Liang Dong

We study optimal transmission strategies in interfering wireless networks, under Quality of Service constraints. A buffered, dynamic network with multiple sources is considered, and sources use a retransmission strategy in order to improve…

Systems and Control · Computer Science 2010-09-22 Marco Levorato , Daniel O'Neill , Andrea Goldsmith , Urbashi Mitra