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To enable densely deployed base stations (BSs) or access points (APs) to serve an increasing number of users and provide diverse mobile services, we need to improve spectrum utilization in wireless communication networks. Although spectral…

Information Theory · Computer Science 2017-12-22 Zhao Li , Fengjuan Guo , Kang G Shin , Yinghou Liu , Jia Liu

An opportunistic spectrum access (OSA) for the infrastructure-less (or cognitive ad-hoc) network has received significant attention thanks to emerging paradigms such as the Internet of Things (IoTs) and smart grids. Research in this area…

Signal Processing · Electrical Eng. & Systems 2018-10-09 Rohit Kumar , Sumit J. Darak , Manjesh K. Hanawal , Ankit Yadav

Opportunistic scheduling and routing can in principle greatly increase the throughput of decentralized wireless networks, but to be practical they must do so with small amounts of timely side information. In this paper, we propose three…

Information Theory · Computer Science 2011-07-21 Chun-Hung Liu , Jeffrey G. Andrews

Consider the problem of joint uplink scheduling and power allocation. Being inherent to almost any wireless system, this resource allocation problem has received extensive attention. Yet, most common techniques either adopt classical power…

Networking and Internet Architecture · Computer Science 2015-03-20 Erez Biton , Asaf Cohen , Guy Reina , Omer Gurewitz

We consider a cellular network, where the uplink transmissions to a base station (BS) are interferenced by other devices, a condition that may occur, e.g., in cell-free networks or when using non-orthogonal multiple access (NOMA)…

Information Theory · Computer Science 2023-05-01 Stefano Tomasin , Raphael Hasler , Antonia M. Tulino , Matilde Sánchez-Fernández

This invited paper presents some novel ideas on how to enhance the performance of consensus algorithms in distributed wireless sensor networks, when communication costs are considered. Of particular interest are consensus algorithms that…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-09-04 Steffen Limmer , Slawomir Stanczak , Mario Goldenbaum , Renato L. G. Cavalcante

The emergence of optical intelligent reflecting surface (OIRS) technologies marks a milestone in optical wireless communication (OWC) systems, enabling enhanced control over light propagation in indoor environments. This capability allows…

Signal Processing · Electrical Eng. & Systems 2025-01-08 Jalal Jalali , Hina Tabassum , Jeroen Famaey , Walid Saad , Murat Uysal

As an increasing number of businesses becomes powered by machine-learning, inference becomes a core operation, with a growing trend to be offered as a service. In this context, the inference task must meet certain service-level objectives…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-05 Pirah Noor Soomro , Nikela Papadopoulou , Miquel Pericàs

Deep neural networks have attained remarkable performance when applied to data that comes from the same distribution as that of the training set, but can significantly degrade otherwise. Therefore, detecting whether an example is…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Yen-Chang Hsu , Yilin Shen , Hongxia Jin , Zsolt Kira

Linear processing in the spatial domain at the base stations (BSs) and at the users of MIMO cellular systems enables the control of both inter-cell and intra-cell interference. A number of iterative algorithms have been proposed that allow…

Information Theory · Computer Science 2014-08-25 Tariq Elkourdi , Osvaldo Simeone , Onur Sahin , Shlomo Shamai

We introduce an opportunistic interference mitigation (OIM) protocol, where a user scheduling strategy is utilized in $K$-cell uplink networks with time-invariant channel coefficients and base stations (BSs) having $M$ antennas. Each BS…

Information Theory · Computer Science 2016-11-15 Bang Chul Jung , Dohyung Park , Won-Yong Shin

In real-world applications, machine learning models must reliably detect Out-of-Distribution (OoD) samples to prevent unsafe decisions. Current OoD detection methods often rely on analyzing the logits or the embeddings of the penultimate…

Machine Learning · Computer Science 2025-02-19 Gianluca Guglielmo , Marc Masana

An reconfigurable intelligent surface (RIS) can be used to establish line-of-sight (LoS) communication when the direct path is compromised, which is a common occurrence in a millimeter wave (mmWave) network. In this paper, we focus on the…

Signal Processing · Electrical Eng. & Systems 2022-02-25 Dilin Dampahalage , K. B. Shashika Manosha , Nandana Rajatheva , Matti Latva-aho

Using out-of-band (OOB) side-information has recently been shown to accelerate beam selection in single-user millimeter wave (mmWave) massive MIMO communications. In this paper, we propose a novel OOB-aided beam selection framework for a…

Signal Processing · Electrical Eng. & Systems 2019-04-01 Flavio Maschietti , David Gesbert , Paul de Kerret

We analyze out-of-band (OOB) emissions in the massive multi-user (MU) multiple-input multiple-output (MIMO) downlink. We focus on systems in which the base station (BS) is equipped with low-resolution digital-to-analog converters (DACs) and…

Information Theory · Computer Science 2017-12-05 Sven Jacobsson , Giuseppe Durisi , Mikael Coldrey , Christoph Studer

For downlink multi-user non-orthogonal multiple access (NOMA) systems with successive interference cancellation (SIC) receivers, and a base-station not possessing the instantaneous channel gains, the fundamental relationship between the…

Information Theory · Computer Science 2020-01-14 Jose Armando Oviedo , Hamid R. Sadjadpour

Distributed opportunistic scheduling (DOS) protocols are proposed for multiple-input multiple-output (MIMO) ad-hoc networks with contention-based medium access. The proposed scheduling protocols distinguish themselves from other existing…

Information Theory · Computer Science 2016-11-17 Man-On Pun , Weiyan Ge , Dong Zheng , Junshan Zhang , H. Vincent Poor

Orthogonal frequency division multiplexing (OFDM) has been widely adopted in dual-function radar-communication (DFRC) systems, where radar and communications are performed simultaneously with a common signal. However, with random…

Signal Processing · Electrical Eng. & Systems 2024-09-10 Yumeng Zhang , Sundar Aditya , Bruno Clerckx

This paper deals with the problem of admission control/channel access in power-controlled decentralized wireless networks, in which the quality-of-service (QoS) is expressed in terms of the signal-to-interference ratio (SIR). We analyze a…

Information Theory · Computer Science 2010-01-06 Sławomir Stańczak , Michał Kaliszan , Nicholas Bambos

We propose a distributed algorithm for controlling traffic signals. Our algorithm is adapted from backpressure routing, which has been mainly applied to communication and power networks. We formally prove that our algorithm ensures global…

Systems and Control · Computer Science 2015-03-20 Tichakorn Wongpiromsarn , Tawit Uthaicharoenpong , Yu Wang , Emilio Frazzoli , Danwei Wang