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Channel adaptive signalling, which is based on feedback, can result in almost any performance metric enhancement. Unlike the radio frequency (RF) channel, the optical wireless communications (OWCs) channel is fairly static. This feature…

Information Theory · Computer Science 2017-08-14 Mohammad Dehghani Soltani , Xiping Wu , Majid Safari , Harald Haas

Adaptive OFDMA has recently been recognized as a promising technique for providing high spectral efficiency in future broadband wireless systems. The research over the last decade on adaptive OFDMA systems has focused on adapting the…

Networking and Internet Architecture · Computer Science 2016-11-18 William Weiliang Li , Ying Jun , Zhang , Anthony Man-Cho So , Moe Z. Win

In this study, we compare the single-carrier (SC) waveform adopted in IEEE 802.11ad and unique word discrete Fourier transform spread orthogonal frequency division multiplexing (UW DFT-s-OFDM) waveform. We provide equivalent representations…

Information Theory · Computer Science 2018-01-30 Alphan Sahin , Rui Yang , Frank La Sita , Robert L. Olesen

Management of disk scheduling is a very important aspect of operating system. Performance of the disk scheduling completely depends on how efficient is the scheduling algorithm to allocate services to the request in a better manner. Many…

Operating Systems · Computer Science 2014-03-04 Sourav Kumar Bhoi , Sanjaya Kumar Panda , Imran Hossain Faruk

Carrier Sense Multiple Access (CSMA) is widely used as a Medium Access Control (MAC) in wireless networks due to its simplicity and distributed nature. This motivated researchers to find CSMA schemes that achieve throughput optimality. In…

Information Theory · Computer Science 2019-08-13 Ali Maatouk , Mohamad Assaad , Anthony Ephremides

The Future wireless communication systems face the challenging task of simultaneously providing high quality of service (QoS) and broadband data transmission, while also minimizing power consumption, latency, and system complexity. Although…

Information Theory · Computer Science 2024-10-03 Amina Darghouthi , Abdelhakim Khlifi , Hmaied Shaiek , Fatma Ben Salah , Belgacem Chibani

In this paper, the performance of high speed optical fiber based network is analysed by using dispersion compensating module (DCM). The optimal operating condition of the DCM is obtained by considering dispersion management configurations…

Networking and Internet Architecture · Computer Science 2015-03-12 Ojuswini Arora , Dr. Amit kumar Garg , Savita Punia

With the rise of critical machine-to-machine applications, next generation wireless communication systems must be designed with strict constraints on the latency and reliability. A key question in this context relates to channel state…

Information Theory · Computer Science 2017-06-06 Sebastian Schiessl , Hussein Al-Zubaidy , Mikael Skoglund , James Gross

Advances in the price, performance, and power consumption of Wi-Fi (IEEE 802.11) technology have led to the adoption of wireless functionality in diverse consumer electronics. These trends have enabled an exciting vision of rich wireless…

Networking and Internet Architecture · Computer Science 2013-01-29 Daniel Chaim Halperin

In this paper a scheduling policy is presented which minimizes the average delay of the users. The scheduling scheme is investigated both by analysis and simulations carried out in the context of Orthogonal Frequency Division Multiplexing…

Information Theory · Computer Science 2011-11-09 Chan Zhou , Gerhard Wunder

Coded caching (CC) can substantially enhance network performance by leveraging memory as an additional communication resource. However, the use of CC is challenging in various practical applications due to dynamic user behavior. The…

Information Theory · Computer Science 2024-05-07 Milad Abolpour , MohammadJavad Salehi , Antti Tölli

Adaptivity, reconfigurability and intelligence are key features of the next-generation wireless networks to meet the increasingly diverse quality of service (QoS) requirements of the future applications. Conventional protocol designs,…

Networking and Internet Architecture · Computer Science 2024-08-30 Navid Keshtiarast , Marina Petrova

In contrast to radio frequency (RF), where the modulation bandwidth is restricted by regulations to avoid interference, the available bandwidth in optical wireless communication (OWC) is primarily constrained by system components. To…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Xiaochen Liu , Jean-Paul M. G. Linnartz , Thiago E. B. Cunha

We propose and examine the idea of continuously adapting state-of-the-art neural network (NN)-based orthogonal frequency division multiplex (OFDM) receivers to current channel conditions. This online adaptation via retraining is mainly…

In this paper, we investigate the performance gains of adapting pilot spacing and power for Carrier Aggregation (CA)-OFDM systems in nonstationary wireless channels. In current multi-band CA-OFDM wireless networks, all component carriers…

Networking and Internet Architecture · Computer Science 2017-09-12 Raghunandan M. Rao , Vuk Marojevic , Jeffrey H. Reed

Solving the nonlinear AC optimal power flow (AC OPF) problem remains a major computational bottleneck for real-time grid operations. In this paper, we propose a residual learning paradigm that uses fast DC optimal power flow (DC OPF)…

Machine Learning · Computer Science 2025-10-21 Muhy Eddin Za'ter , Bri-Mathias Hodge , Kyri Baker

The existing medium access control (MAC) protocol of Wi-Fi networks (i.e., carrier-sense multiple access with collision avoidance (CSMA/CA)) suffers from poor performance in dense deployments due to the increasing number of collisions and…

Information Theory · Computer Science 2021-11-18 Jiantao Xin , Wensen Xu , Yucheng Cai , Taotao Wang , Shengli Zhang , Peng Liu , Ziyang Guo , Jiajun Luo

Admission control as a mechanism for providing QoS requires an accurate description of the requested flow as well as already admitted flows. Since 802.11 WLAN capacity is shared between flows belonging to all stations, admission control…

Networking and Internet Architecture · Computer Science 2007-05-23 Preetam Patil , Varsha Apte

Coflow has emerged as a fundamental application-layer abstraction in distributed systems, representing communication dependencies and enabling collaborative management of related flows to enhance job completion efficiency. To meet the…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-30 Xin Wang , Hong Shen , Hui Tian , Ye Tao

There is an emerging need for efficient solutions to stochastic AC Optimal Power Flow ({AC-}OPF) to ensure optimal and reliable grid operations in the presence of increasing demand and generation uncertainty. This paper presents a highly…

Systems and Control · Electrical Eng. & Systems 2020-06-11 Ilyes Mezghani , Sidhant Misra , Deepjyoti Deka