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IEEE 802.11ad specifies a hybrid medium access control (MAC) protocol consisting of contention as well as noncontention-based channel access mechanisms. Further, it also employs directional antennas to compensate for the high freespace path…

网络与互联网体系结构 · 计算机科学 2019-09-10 Kishor Chandra , R. Venkatesha Prasad , Ignas Niemegeers

Integrated sensing and communication (ISAC) base stations can provide communication and wide range sensing information for vehicles via downlink (DL) transmission, thus enhancing vehicle driving safety. One major challenge for realizing…

性能 · 计算机科学 2023-10-13 Wangjun Jiang , Zhiqing Wei , Fan Liu , Zhiyong Feng , Ping Zhang

Most V2X applications/services are supported by the continuous exchange of broadcast messages. One of the main challenges is to increase the reliability of broadcast transmissions that lack of mechanisms to assure the correct delivery of…

网络与互联网体系结构 · 计算机科学 2020-12-02 Baldomero Coll-Perales , Gokulnath Thandavarayan , Miguel Sepulcre , Javier Gozalvez

In this paper, we propose a simultaneous secrecy and covert communications (SSACC) scheme in a reconfigurable intelligent surface (RIS)-aided network with a cooperative jammer. The scheme enhances communication security by maximizing the…

信号处理 · 电气工程与系统科学 2026-05-01 Yanyu Cheng , Yujian Hu , Haoran Liu , Hua Zhong , Wei Wang , Pan Li

Cooperative spectrum sensing (CSS) is a promising approach to improve the detection of primary users (PUs) using multiple sensors. However, there are several challenges for existing combination methods, i.e., performance degradation and…

信号处理 · 电气工程与系统科学 2024-09-30 Peng Yi , Yang Cao , Xin Kang , Ying-Chang Liang

Fast rate adaptation has been established as an effective way to improve the PHY-layer raw date rate of wireless networks. However, within the current IEEE 802.11 legacy, MAC-layer throughput is dominated by users with the lowest data…

网络与互联网体系结构 · 计算机科学 2007-12-17 Da Rui Chen , Ying Jun , Zhang

The IEEE 802.11 backoff algorithm is very important for controlling system throughput over contentionbased wireless networks. For this reason, there are many studies on wireless network performance focus on developing backoff algorithms.…

网络与互联网体系结构 · 计算机科学 2016-01-05 Hatm Alkadeki , Xingang Wang , Michael Odetayo

We propose a novel modulation scheme for intensity modulation and direct detection (IM/DD) based optical communication system employing orthogonal frequency division multiplexing (OFDM). This method utilizes the DC-bias, which typically is…

信息论 · 计算机科学 2014-10-28 Qian Gao , Chen Gong , Rui Wang , Zhengyuan Xu , Yingbo Hua

The rise of distributed AI and large-scale applications has impacted the communication operations of data-center and Supercomputer interconnection networks, leading to dramatic incast or in-network congestion scenarios and challenging…

网络与互联网体系结构 · 计算机科学 2025-11-07 Alberto Merino , Jesus Escudero-Sahuquillo , Pedro Javier Garcia , Francisco J. Quiles

This paper focuses on contention-based Medium Access Control (MAC) protocols used in Wireless Local Area Networks (WLANs). We propose a novel MAC protocol called Adaptive Backoff Tuning MAC (ABTMAC) based on IEEE 802.11 DCF. In our proposed…

网络与互联网体系结构 · 计算机科学 2014-11-04 Amin Jamali , Seyed Mostafa Safavi Hemami , Mehdi Berenjkoub , Hossein Saidi

Distributed computing frameworks such as MapReduce and Spark are often used to process large-scale data computing jobs. In wireless scenarios, exchanging data among distributed nodes would seriously suffer from the communication bottleneck…

信息论 · 计算机科学 2023-10-25 Youlong Wu , Zhenhao Huang , Kai Yuan , Shuai Ma , Yue Bi

Cooperative Adaptive Cruise Control (CACC) is an autonomous vehicle-following technology that allows groups of vehicles on the highway to form in tightly-coupled platoons. This is accomplished by exchanging inter-vehicle data through…

系统与控制 · 电气工程与系统科学 2021-09-06 Tianci Yang , Carlos Murguia , Chen Lv

In a mixed traffic with connected automated vehicles (CAVs) and human-driven vehicles (HDVs) coexisting, data-driven predictive control of CAVs promises system-wide traffic performance improvements. Yet, most existing approaches focus on a…

最优化与控制 · 数学 2024-10-08 Xu Shang , Jiawei Wang , Yang Zheng

With the complex hybrid AC-DC power system in China coming into being, the HVDC faults, such as DC block faults, have an enormous effect on the frequency stability of the AC side. In multi-infeed HVDC (MIDC) system, to improve the frequency…

系统与控制 · 电气工程与系统科学 2019-07-16 Ye Liu , Chen Shen , Yankan Song , Jun Yan

Due to possible emergency faults and frequency regulation reserve shortage in the multi-infeed hybrid AC-DC (MIDC) system, the emergency frequency control (EFC) with LCC-HVDC systems participating is important for system frequency…

系统与控制 · 电气工程与系统科学 2022-10-17 Ye Liu , Chen Shen , Zhaojian Wang

The ability to perform traffic differentiation is a promising feature of the current Medium Access Control (MAC) in Wireless Local Area Networks (WLANs). The Enhanced Distributed Channel Access (EDCA) protocol for WLANs proposes up to four…

网络与互联网体系结构 · 计算机科学 2016-05-30 Luis Sanabria-Russo , Boris Bellalta

In this paper, we propose an adaptive Medium Access Control (MAC) protocol for full-duplex (FD) cognitive radio networks in which FD secondary users (SUs) perform channel contention followed by concurrent spectrum sensing and transmission,…

网络与互联网体系结构 · 计算机科学 2016-11-17 Le Thanh Tan , Long Bao Le

The recently developed DeeP-LCC (Data-EnablEd Predictive Leading Cruise Control) method has shown promising performance for data-driven predictive control of Connected and Autonomous Vehicles (CAVs) in mixed traffic. However, its simplistic…

最优化与控制 · 数学 2023-10-03 Xu Shang , Jiawei Wang , Yang Zheng

A conceptual design methodology is proposed for event-triggered based power system wide area damping controller. The event-triggering mechanism is adopted to reduce the communication burden between origin of the remote signal and the wide…

最优化与控制 · 数学 2016-01-05 Mahendra Bhadu , Niladri Sekhar Tripathy , I. N. Kar , Nilanjan Senroy

Multimedia content especially videos is expected to dominate data traffic in next-generation mobile networks. Caching popular content at the network edge has emerged to be a solution for low-latency content delivery. Compared with the…

信息论 · 计算机科学 2018-01-08 Dongzhu Liu , Kaibin Huang