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Out of the very few studies that paid proper attention to the harmful health impacts in millimeter-wave (mmW) communications, most of them are concerned about uplink cases due to closer contact with the human body. Our recent study revealed…

Networking and Internet Architecture · Computer Science 2018-01-23 Imtiaz Nasim , Seungmo Kim

Device-to-Device (D2D) communications underlaying cellular networks is a viable network technology that can potentially increase spectral utilization and improve power efficiency for proximitybased wireless applications and services.…

Information Theory · Computer Science 2018-03-05 Asmaa Abdallah , Mohammad M. Mansour , Ali Chehab

Device-to-device (D2D) communication enables us to spread information in the local area without infrastructure support. In this paper, we focus on information spreading in mobile wireless networks where all nodes move around. The source…

Networking and Internet Architecture · Computer Science 2014-06-04 Jinho Choi , Seung Min Yu , Seong-Lyun Kim

We investigate uplink user scheduling for millimeter wave (mmWave) hybrid analog/digital beamforming systems with low-resolution analog-to-digital converters (ADCs). Deriving new scheduling criteria for the mmWave systems, we show that the…

Information Theory · Computer Science 2019-02-18 Jinseok Choi , Gilwon Lee , Brian L. Evans

In this paper, we study underlay device-to-device (D2D) communication systems empowered by a reconfigurable intelligent surface (RIS) for cognitive cellular networks. Considering Rayleigh fading channels and the general case where there…

Signal Processing · Electrical Eng. & Systems 2024-01-09 Sarbani Ghose , Deepak Mishra , Santi P. Maity , George C. Alexandropoulos

This tutorial is intended as an accessible but rigorous first reference for someone interested in learning how to model and analyze cellular network performance using stochastic geometry. In particular, we focus on computing the…

Information Theory · Computer Science 2016-10-06 Jeffrey G. Andrews , Abhishek K. Gupta , Harpreet S. Dhillon

This paper derives approximate outage probability (OP) expressions for uplink cell-free massive multiple-input-multiple-output (CF-mMIMO) systems with and without pilot contamination. The system's access points (APs) are considered to have…

Information Theory · Computer Science 2023-06-28 Shashank Shekhar , Muralikrishnan Srinivasan , Sheetal Kalyani , Mohamed-Slim Alouini

Heterogeneous cellular networks (HCNs) with millimeter wave (mmWave) communications included are emerging as a promising candidate for the fifth generation mobile network. With highly directional antenna arrays, mmWave links are able to…

Networking and Internet Architecture · Computer Science 2018-11-07 Yali Chen , Bo Ai , Yong Niu , Ke Guan , Zhu Han

We study the impact of imperfect line-of-sight (LoS) phase tracking on the uplink performance of cell-free massive MIMO networks. Unlike prior works that assume perfectly known or completely unknown phases, we consider a realistic regime…

Information Theory · Computer Science 2026-02-27 Noor Ul Ain , Lorenzo Miretti , Renato L. G. Cavalcante , Slawomir Stanczak

In this paper, the performance of uplink spectral efficiency in massive multiple input multiple output (MIMO) over spacially correlated Ricean fading channel is presented. The maximum ratio combining (MRC) receiver is employed at the base…

Information Theory · Computer Science 2017-07-20 Juan Cao , Dongming Wang , Jiamin Li , Qiang Sun

This paper investigates the robust transmission design (RTD) of a multi-cell device-to-device (D2D) underlaid cellular network with imperfect channel state information (CSI). The bounded model is adopted to characterize the CSI impairment…

Information Theory · Computer Science 2018-04-17 Hao Xu , Gordon L. Stüber , Wei Xu , Cunhua Pan , Jianfeng Shi , Zhaohui Yang , Ming Chen

Energy-aware system design is an important optimization task for static and mobile Internet of Things (IoT)-based sensor nodes, especially for highly resource-constrained vehicles such as mobile robotic systems. For 4G/5G-based cellular…

Networking and Internet Architecture · Computer Science 2020-02-20 Robert Falkenberg , Benjamin Sliwa , Nico Piatkowski , Christian Wietfeld

Device-to-device (D2D) communications in cellular networks are promising technologies for improving network throughput, spectrum efficiency, and transmission delay. In this paper, we first introduce the concept of guard distance to explore…

Networking and Internet Architecture · Computer Science 2016-11-17 Minming Ni , Lei Zheng , Fei Tong , Jianping Pan , Lin Cai

One of the most significant 5G technology enablers will be Device-to-Device (D2D) communications. D2D communications constitute a promising way to improve spectral, energy and latency performance, exploiting the physical proximity of…

Information Theory · Computer Science 2017-11-10 Marios I. Poulakis , Antonis G. Gotsis , Angeliki Alexiou

Small cells in the millimeter wave band densely deployed underlying the macrocell have been regarded as one of promising candidates for the next generation mobile networks. In the user intensive region, device-to-device (D2D) communication…

Networking and Internet Architecture · Computer Science 2019-01-25 Yong Niu , Han Shi , Yong Li , Ruisi He , Zhangdui Zhong

Simultaneous use of high-end wearable wireless devices like smart glasses is challenging in a dense indoor environment due to the high nature of interference. In this scenario, the millimeter wave (mmWave) band offers promising potential…

Information Theory · Computer Science 2016-06-14 Kiran Venugopal , Robert W. Heath

This paper analyses a scenario where a Device-To-Device (D2D) pair coexists with an Orthogonal Frequency Division Multiplexing (OFDM) based incumbent network. D2D transmitter communicates in parts of spectrum left free by cellular users,…

Information Theory · Computer Science 2016-11-15 Quentin Bodinier , Arman Farhang , Faouzi Bader , Hamed Ahmadi , Jacques Palicot , Luiz A. DaSilva

Opportunistic scheduling and beamforming schemes are proposed for multiuser MIMO-SDMA downlink systems with linear combining in this work. Signals received from all antennas of each mobile terminal (MT) are linearly combined to improve the…

Information Theory · Computer Science 2016-11-18 Man-On Pun , Visa Koivunen , H. Vincent Poor

Device-to-device (D2D) communications as an underlay of a LTE-A (4G) network can reduce the traffic load as well as power consumption in cellular networks by way of utilizing peer-to-peer links for users in proximity of each other. This…

Networking and Internet Architecture · Computer Science 2014-12-25 Sajjad Mehri Alamouti , Ahmad R. Sharafat

The presence of signal outage, due to shadowing and blockage, is expected to be the main bottleneck in millimeter wave (mmWave) networks. Moreover, with the anticipated vision that mmWave networks would have a dense deployment of base…

Information Theory · Computer Science 2015-03-19 Diana Maamari , Natasha Devroye , Daniela Tuninetti
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