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This paper develops a stochastic geometry-based approach for the modeling, analysis, and optimization of wireless cloud caching networks comprised of multiple-antenna radio units (RUs) inside clouds. We consider the Matern cluster process…

Information Theory · Computer Science 2019-05-07 Seyed Mohammad Azimi-Abarghouyi , Masoumeh Nasiri-Kenari , Merouane Debbah

We consider distributed optimization over a $d$-dimensional space, where $K$ remote clients send coded gradient estimates over an {\em additive Gaussian Multiple Access Channel (MAC)} with noise variance $\sigma_z^2$. Furthermore, the…

Information Theory · Computer Science 2023-10-06 Shubham Jha

This paper optimizes the configuration of large-scale data centers toward cost-effective, reliable and sustainable cloud supply chains. The problem involves placing incoming racks of servers within a data center to maximize demand coverage…

Optimization and Control · Mathematics 2026-01-19 Saumil Baxi , Kayla Cummings , Alexandre Jacquillat , Sean Lo , Rob McDonald , Konstantina Mellou , Ishai Menache , Marco Molinaro

Due to the rapid demand for wireless services and the increase in the wireless device count, there is a lack of available spectrum bands which constrain the further development of wireless communication .Therefore, Cognitive Radio (CR) has…

Signal Processing · Electrical Eng. & Systems 2022-06-24 Abdelhamed Mohamed , Mona Shokair , Mohamed Elkordy , Said ElHalafawy

Out-of-system (OoS) interference is a potential limitation for distributed networks that operate in unlicensed spectrum or in a spectrum sharing scenario. The OoS interference differs from the in-system interference in that OoS signals and…

Information Theory · Computer Science 2024-05-08 Zakir Hussain Shaik , Erik G. Larsson

The smooth operation of largely deployed Internet of Things (IoT) applications will depend on, among other things, effective infrastructure failure detection. Access failures in wireless network Base Stations (BSs) produce a phenomenon…

Signal Processing · Electrical Eng. & Systems 2020-02-05 Orestes Manzanilla-Salazar , Filippo Malandra , Hakim Mellah , Constant Wette , Brunilde Sanso

We study the problem of inter cell interference coordination (ICIC) with fixed transmit power in OFDMA-based cellular networks, in which each base station (BS) needs to decide as to which subchannel, if any, to allocate to each of its…

Signal Processing · Electrical Eng. & Systems 2019-12-30 Vaibhav Kumar Gupta , Gaurav S. Kasbekar

In a cloud radio access network (C-RAN), distributed remote radio heads (RRHs) are coordinated by baseband units (BBUs) in the cloud. The centralization of signal processing provides flexibility for coordinated multi-point transmission…

Information Theory · Computer Science 2021-01-21 Lei You , Di Yuan

Future communications systems will definitely be built on green infrastructures. To realize such a goal, recently a new network infrastructure named cloud radio access network (C-RAN) is proposed by China Mobile to enhance network coverage…

Information Theory · Computer Science 2014-10-07 Ang Yang , Zesong Fei , Chengwen Xing , Shaodan Ma , Jingming Kuang , Dalin Zhu , Ming Lei

Intelligent reflecting surface (IRS) is a promising technology that enables the precise control of the electromagnetic environment in future wireless communication networks. To leverage the IRS effectively, the acquisition of channel state…

Information Theory · Computer Science 2021-10-25 Jiancheng An , Chao Xu , Lu Gan , Chau Yuen , Lajos Hanzo

Integrated sensing and communication (ISAC) networks are investigated with the objective of effectively balancing the sensing and communication (S&C) performance at the network level. Through the simultaneous utilization of multi-point…

Information Theory · Computer Science 2024-06-12 Kaitao Meng , Christos Masouros , Athina P. Petropulu , Lajos Hanzo

Consider the broadcast relay channel (BRC) which consists of a source sending information over a two user broadcast channel in presence of two relay nodes that help the transmission to the destinations. Clearly, this network with five nodes…

Information Theory · Computer Science 2010-05-05 Arash Behboodi , Pablo Piantanida

We consider a mixed analog-to-digital converter (ADC) based architecture consisting of high-precision and one-bit ADCs with the antenna-varying threshold for direction of arrival (DOA) estimation using a uniform linear array (ULA), which…

Signal Processing · Electrical Eng. & Systems 2024-03-15 Xinnan Zhang , Yuanbo Cheng , Xiaolei Shang , Jun Liu

In connected vehicular networks, it is vital to have vehicular nodes that are capable of sensing about surrounding environments and exchanging messages with each other for automating and coordinating purpose. Towards this end, integrated…

Information Theory · Computer Science 2022-05-05 Yao Liu , Min Li , An Liu , Jianmin Lu , Tony Xiao Han

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

Organization, scalability and routing have been identified as key problems hindering viability and commercial success of mobile ad hoc networks. Clustering of mobile nodes among separate domains has been proposed as an efficient approach to…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-09-20 Damianos Gavalas , Grammati Pantziou , Charalampos Konstantopoulos , Basilis Mamalis

Clustering is a crucial component of many data mining systems involving the analysis and exploration of various data. Data diversity calls for clustering algorithms to be accurate while providing stable (i.e., deterministic and robust)…

Social and Information Networks · Computer Science 2019-12-19 Artem Lutov , Mourad Khayati , Philippe Cudré-Mauroux

In this paper, we propose a novel integrated sensing and communication (ISAC) transmission framework based on the spatially-spread orthogonal time frequency space (SS-OTFS) modulation by considering the fact that communication channel…

Information Theory · Computer Science 2021-09-02 Shuangyang Li , Weijie Yuan , Chang Liu , Zhiqiang Wei , Jinhong Yuan , Baoming Bai , Derrick Wing Kwan Ng

Over-the-Air Computation (OAC) enables efficient data aggregation in large-scale distributed systems by exploiting the superposition property of wireless multiple-access channels. In contrast to most existing studies on OAC assuming exact…

Signal Processing · Electrical Eng. & Systems 2026-05-28 Martin Dahl , Zheng Chen , Erik G. Larsson

In this paper, we investigate the robust resource allocation design for secure communication in an integrated sensing and communication (ISAC) system. A multi-antenna dual-functional radar-communication (DFRC) base station (BS) serves…

Information Theory · Computer Science 2022-10-25 Dongfang Xu , Xianghao Yu , Derrick Wing Kwan Ng , Anke Schmeink , Robert Schober