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Providing seamless connection to a large number of devices is one of the biggest challenges for the Internet of Things (IoT) networks. Using a drone as an aerial base station (ABS) to provide coverage to devices or users on ground is…

信息论 · 计算机科学 2024-10-30 Xiaohui Zhou , Salman Durrani , Jing Guo , Halim Yanikomeroglu

This paper investigates PASS-enabled downlink covert communication in the presence of distributed surveillance, where multiple wardens perform signal detection and fuse their local binary decisions via majority-voting rule. We consider a…

信息论 · 计算机科学 2026-01-13 Ji He

Quality of service (QoS) for a network is characterized in terms of various parameters specifying packet delay and loss tolerance requirements for the application. The unpredictable nature of the wireless channel demands for application of…

信息论 · 计算机科学 2016-11-17 M. Majid Butt , Eduard A. Jorswieck , Bjorn Ottersten

There have been a bulk of analytic results about the performance of cellular networks where base stations are regularly located on a hexagonal or square lattice. This regular model cannot reflect the reality, and tends to overestimate the…

网络与互联网体系结构 · 计算机科学 2015-03-19 Seung Min Yu , Seong-Lyun Kim

Although it is often used in the orthogonal frequency division multiplexing (OFDM) systems, application of massive multiple-input multiple-output (MIMO) over the orthogonal time frequency space (OTFS) modulation could suffer from enormous…

信号处理 · 电气工程与系统科学 2020-03-17 Yushan Liu , Shun Zhang , Feifei Gao , Jianpeng Ma , Xianbin Wang

In this paper, we consider a relay-assisted uplink non-orthogonal multiple access (NOMA) system. In this system, two radio frequency (RF) users are grouped for simultaneous transmissions, over each resource block, to an intermediate relay.…

信息论 · 计算机科学 2020-02-18 Mohammad Vahid Jamali , Hessam Mahdavifar

In this paper, we present the ergodic sum secrecy rate (ESSR) analysis of an underlay spectrum sharing non-orthogonal multiple access (NOMA) system. We consider the scenario where the power transmitted by the secondary transmitter (ST) is…

信息论 · 计算机科学 2021-05-18 Vaibhav Kumar , Mark F. Flanagan , Daniel Benevides da Costa , Le-Nam Tran

In this paper, we investigate a non-orthogonal multiple access (NOMA) based mobile edge computing (MEC) network, in which two users may partially offload their respective tasks to a single MEC server through uplink NOMA. We propose a new…

信息论 · 计算机科学 2019-07-15 Yinghui Ye , Guangyue Lu , Rose Qingyang Hu , Liqin Shi

In this paper, a non-orthogonal multiple access (NOMA) based downlink vehicle-to-infrastructure network is considered. Particularly, we focus on the specific case of two users, one of which requires reliable road-safety-critical data…

信息论 · 计算机科学 2022-09-01 Chongtao Guo , Bin Liao

In this work, we investigate the performance of a dual-hop multiple relays system consisting of mixed Radio-Frequency (RF)/Free Space Optical (FSO) channels. The RF channels are subject to Rayleigh fading while the optical links experience…

信号处理 · 电气工程与系统科学 2019-01-21 Elyes Balti , Brian K. Johnson

Adaptive Radio Resource Allocation is essential for guaranteeing high bandwidth and power utilization as well as satisfying heterogeneous Quality-of-Service requests regarding next generation broadband multicarrier wireless access networks…

We consider a two-hop cellular system in which the mobile nodes help the base station by relaying information to the dead spots. While two-hop cellular schemes have been analyzed previously, the distribution of the node locations has not…

信息论 · 计算机科学 2009-11-19 Radha Krishna Ganti , Martin Haenggi

This paper analyzes the outage performance of downlink NOMA systems with transmit antenna selection (TAS) and multi-antenna users over {\alpha}-{\mu} fading. Maximal-ratio combining (MRC) and equal-gain combining (EGC) are considered, with…

This paper presents an analytical framework for downlink pinching antenna systems (PASS) employing waveguide division multiple access (WDMA) and non-orthogonal multiple access (NOMA). A unified channel model is developed to capture antenna…

信号处理 · 电气工程与系统科学 2026-05-18 Han Zhang , Bingxin Zhang , Yizhe Zhao , Kun Yang

Using stochastic geometry tools, we develop a comprehensive framework to analyze the downlink coverage probability, ergodic capacity, and energy efficiency (EE) of various types of users (e.g., users served by direct base station (BS)…

信息论 · 计算机科学 2021-08-12 Taniya Shafique , Hina Tabassum , Ekram Hossain

The long-range and low energy consumption requirements in Internet of Things (IoT) applications have led to a new wireless communication technology known as Low Power Wide Area Network (LPWANs). In recent years, the Long Range (LoRa)…

网络与互联网体系结构 · 计算机科学 2022-10-27 Reza Serati , Benyamin Teymuri , Nikolaos Athanasios Anagnostopoulos , Mehdi Rasti

The scenario of an uplink two-user non-orthogonal multiple access (NOMA) communication system is analytically studied when it operates in the short packet transmission regime. The considered users support mobility and each is equipped with…

The Multi-Carrier Code Division Multiple Access (MC-CDMA) is becoming a very significant downlink multiple access technique for high-rate data transmission in the fourth generation wireless communication systems. By means of efficient…

网络与互联网体系结构 · 计算机科学 2012-09-17 Hema Kale , C. G. Dethe , M. M. Mushrif

In this letter, we investigate Rate-Splitting Multiple Access (RSMA) for an uplink communication system with finite blocklength. Considering a two-user Single-Input Single-Output (SISO) Multiple Access Channel (MAC), we study the impact of…

信息论 · 计算机科学 2022-12-12 Jiawei Xu , Onur Dizdar , Bruno Clerckx

In this article, we investigate the real-world capability of the multi-link operation (MLO) framework -- one of the key MAC-layer features included in the IEEE 802.11be amendment -- by using a large dataset containing 5 GHz spectrum…

网络与互联网体系结构 · 计算机科学 2023-05-04 Marc Carrascosa , Giovanni Geraci , Edward Knightly , Boris Bellalta