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Grant-free random access (GFRA) is now a popular protocol for large-scale wireless multiple access systems in order to reduce control signaling. Resource allocation in GFRA can be viewed as a form of frame slotted ALOHA, where a ubiquitous…

信息论 · 计算机科学 2024-07-29 Alix Jeannerot , Malcolm Egan , Jean-Marie Gorce

6LoWPAN (IPv6 over IEEE 802.15.4) standardized by IEEE 802.15.4 provides IP communication capability for nodes in WSN. An adaptation layer is introduced above the MAC layer to achieve header compression, fragmentation and reassembly of IP…

网络与互联网体系结构 · 计算机科学 2012-09-24 M. Rehenasulthana , P. T. V. Bhuvaneswari , N. Rama

Over the last decade the relative latency of access to shared memory by multicore increased as wire resistance dominated latency and low wire density layout pushed multiport memories farther away from their ports. Various techniques were…

硬件体系结构 · 计算机科学 2021-03-01 Ashish Shrivastava , Alan Gatherer , Tong Sun , Sushma Wokhlu , Alex Chandra

A segmented waveguide-enabled pinching-antenna system (SWAN) is proposed, in which a segmented waveguide composed of multiple short dielectric waveguide segments is employed to radiate or receive signals through the pinching antennas (PAs)…

信号处理 · 电气工程与系统科学 2025-09-16 Chongjun Ouyang , Hao Jiang , Zhaolin Wang , Yuanwei Liu , Zhiguo Ding

Wireless cellular networks evolve towards a heterogeneous infrastructure, featuring multiple types of Base Stations (BSs), such as Femto BSs (FBSs) and Macro BSs (MBSs). A wireless device observes multiple points (BSs) through which it can…

网络与互联网体系结构 · 计算机科学 2016-11-17 Katerina Smiljkovikj , Petar Popovski , Liljana Gavrilovska

This paper focuses on improving the resource allocation algorithm in terms of packet delivery ratio (PDR), i.e., the number of successfully received packets sent by end devices (EDs) in a long-range wide-area network (LoRaWAN). Setting the…

网络与互联网体系结构 · 计算机科学 2022-06-08 Farzad Azizi , Benyamin Teymuri , Rojin Aslani , Mehdi Rasti , Jesse Tolvanen , Pedro H. J. Nardelli

This work presents joint iterative power allocation and interference suppression algorithms for spread spectrum networks which employ multiple hops and the amplify-and-forward cooperation strategy for both the uplink and the downlink. We…

信息论 · 计算机科学 2013-01-03 Rodrigo C. de Lamare

In this paper, we analytically analyzed the impact of an error-prone channel over all performance measures in a trafficsaturated IEEE 802.11 WLAN. We calculated station's transmission probability by using the modified Markov chain model of…

网络与互联网体系结构 · 计算机科学 2010-05-18 Zoran Hadzi-Velkov , Boris Spasenovski

Deep learning models in satellite onboard enable real-time interpretation of remote sensing images, reducing the need for data transmission to the ground and conserving communication resources. As satellite numbers and observation…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Xinyang Pu , Feng Xu

In this paper, we explore perpetual, scalable, Low-powered Wide-area networks (LPWA). Specifically we focus on the uplink transmissions of non-orthogonal multiple access (NOMA)-based LPWA networks consisting of multiple self-powered nodes…

信号处理 · 电气工程与系统科学 2021-01-01 Fatma Benkhelifa , Julie A. McCann

In this paper, we consider the downlink of large OFDMA-based networks and study their performance bounds as a function of the number of - transmitters $B$, users $K$, and resource-blocks $N$. Here, a resource block is a collection of…

信息论 · 计算机科学 2012-06-13 Rohit Aggarwal , Can Emre Koksal , Philip Schniter

In this paper, we investigate the resource allocation for uplink non-orthogonal multiple access (NOMA) enabled low-power wide-area (LPWA) networks to support the massive connectivity of users/nodes. Here, LPWA nodes communicate with a…

信号处理 · 电气工程与系统科学 2019-10-01 Kaihan Li , Fatma Benkhelifa , Julie McCann

Recent Large Reasoning Models (LRMs) have achieved remarkable performance in solving complex problems via supervised fine-tuning (SFT) and reinforcement learning (RL). Although existing RL algorithms significantly enhance model accuracy,…

人工智能 · 计算机科学 2025-10-20 Zezhong Tan , Hang Gao , Xinhong Ma , Feng Zhang , Ziqiang Dong

In wireless communication systems, mmWave beam tracking is a critical task that affects both sensing and communications, as it is related to the knowledge of the wireless channel. We consider a setup in which a Base Station (BS) needs to…

信号处理 · 电气工程与系统科学 2023-06-28 Cristian J. Vaca-Rubio , Carles Navarro Manchón , Ramoni Adeogun , Petar Popovski

LPWANs have become ubiquitous due to their ability to connect sensors over large geographic areas in a single hop. It is, however, very challenging to achieve massive scalability in LPWANs, where numerous sensors can transmit data…

网络与互联网体系结构 · 计算机科学 2025-07-25 Mahbubur Rahman

LoRaWAN is nowadays one of the most popular protocols for low-power Internet-of-Things communications. Although its physical layer, namely LoRa, has been thoroughly studied in the literature, aspects related to the synchronization of LoRa…

信号处理 · 电气工程与系统科学 2021-08-03 Mathieu Xhonneux , Orion Afisiadis , David Bol , Jérôme Louveaux

To remotely monitor the physiological status of the human body, long range (LoRa) communication has been considered as an eminently suitable candidate for wireless body area networks (WBANs). Typically, a Rayleigh-lognormal fading channel…

信息论 · 计算机科学 2023-11-08 Minling Zhang , Guofa Cai , Zhiping Xu , Jiguang He , Markku Juntti

Rate-Splitting Multiple Access (RSMA) has emerged as a potent and reliable multiple access and interference management technique in wireless communications. While downlink Multiple-Input Multiple-Ouput (MIMO) RSMA has been widely…

信息论 · 计算机科学 2024-06-04 Jiawei Xu , Bruno Clerckx

As the number of model parameters increases, parameter-efficient fine-tuning (PEFT) has become the go-to choice for tailoring pre-trained large language models. Low-rank Adaptation (LoRA) uses a low-rank update method to simulate full…

机器学习 · 计算机科学 2026-05-21 Yongkang Liu , Xing Li , Mengjie Zhao , Shanru Zhang , Zijing Wang , Qian Li , Shi Feng , Feiliang Ren , Daling Wang , Hinrich Schütze

The extension of elastic optical networks (EON) to multi-band transmission (MB-EON) shows promise in enhancing spectral efficiency, throughput, and long-term cost-effectiveness for telecom operators. However, designing MB-EON networks…

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