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This paper provides the first real-world evaluation of using visual (RGB camera) data and machine learning for proactively predicting millimeter wave (mmWave) dynamic link blockages before they happen. Proactively predicting line-of-sight…

信号处理 · 电气工程与系统科学 2022-03-04 Gouranga Charan , Ahmed Alkhateeb

The millimeter-wave (mmWave) communication is envisioned to provide orders of magnitude capacity improvement. However, it is challenging to realize a sufficient link margin due to high path loss and blockages. To address this difficulty, in…

信息论 · 计算机科学 2021-03-04 Wei Feng , Yanmin Wang , Dengsheng Lin , Ning Ge , Jianhua Lu , Shaoqian Li

Millimeter-wave (mmWave) communication technology offers a potential and promising solution to support 5G and B5G wireless networks in dynamic scenarios and applications. However, mobility introduces many challenges as well as opportunities…

信息论 · 计算机科学 2022-05-20 Jing Li , Yong Niu , Hao Wu , Bo Ai , Sheng Chen , Zhiyong Feng , Zhangdui Zhong , Ning Wang

This work considers millimeter-wave channel estimation in a setting where parameters of the underlying mmWave channels are varying dynamically over time and there is a single drifting path. In this setting, channel estimates at time block…

信息论 · 计算机科学 2020-05-06 Dror Baron , Cynthia Rush , Yavuz Yapici

Unmanned aerial vehicles (UAVs) have found widespread commercial, civilian, and military applications. Wireless communication has always been one of the core technologies for UAV. However, the communication capacity is becoming a bottleneck…

信号处理 · 电气工程与系统科学 2021-10-26 Zhenyu Xiao , Lipeng Zhu , Yanming Liu , Pengfei Yi , Rui Zhang , Xiang-Gen Xia , Robert Schober

The exploitation of mm-wave bands is one of the key-enabler for 5G mobile radio networks. However, the introduction of mm-wave technologies in cellular networks is not straightforward due to harsh propagation conditions that limit the…

网络与互联网体系结构 · 计算机科学 2020-11-26 Ilario Filippini , Vincenzo Sciancalepore , Francesco Devoti , Antonio Capone

Millimeter wave (mmWave) systems will likely employ directional beamforming with large antenna arrays at both the transmitters and receivers. Acquiring channel knowledge to design these beamformers, however, is challenging due to the large…

信息论 · 计算机科学 2016-11-15 Ahmed Alkhateeb , Geert Leus , Robert W. Heath

Maintaining reliable millimeter wave (mmWave) connections to many fast-moving mobiles is a key challenge in the theory and practice of 5G systems. In this paper, we develop a new algorithm that can jointly track the beam direction and…

信息论 · 计算机科学 2018-02-14 Jiahui Li , Yin Sun , Limin Xiao , Shidong Zhou , Ashutosh Sabharwal

Overcoming the link blockage challenges is essential for enhancing the reliability and latency of millimeter wave (mmWave) and sub-terahertz (sub-THz) communication networks. Previous approaches relied mainly on either (i)…

信号处理 · 电气工程与系统科学 2021-11-17 Shunyao Wu , Muhammad Alrabeiah , Chaitali Chakrabarti , Ahmed Alkhateeb

With millimeter wave wireless communications, the resulting radiation reflects on most visible objects, creating rich multipath environments, namely in urban scenarios. The radiation captured by a listening device is thus shaped by the…

信号处理 · 电气工程与系统科学 2018-04-12 João Gante , Gabriel Falcão , Leonel Sousa

With the standardization of 5G, commercial millimeter wave (mmWave) communications has become a reality despite all the concerns about the unfavorable propagation characteristics of these frequencies. Even though the 5G systems are still…

信息论 · 计算机科学 2021-02-23 Shuchi Tripathi , Nithin V. Sabu , Abhishek K. Gupta , Harpreet S. Dhillon

With the formidable growth of various booming wireless communication services that require ever-increasing data throughputs, the conventional microwave band below 10 GHz, which is currently used by almost all mobile communication systems,…

网络与互联网体系结构 · 计算机科学 2014-10-17 Peng Wang , Yonghui Li , Lingyang Song , Branka Vucetic

Millimeter wave signals and large antenna arrays are considered enabling technologies for future 5G networks. Despite their benefits for achieving high data rate communications, their potential advantages for tracking of the location of the…

Wireless communication in millimeter wave spectrum is poised to provide the latency and bandwidth needed for advanced use cases unfeasible at lower frequencies. Despite the market potential of vehicular communication networks,…

Millimeter wave (mmWave) communication with large array gains is a key ingredient of next generation (5G) wireless networks. Effective communication in mmWaves usually depends on the knowledge of the channel. We refer to the problem of…

信息论 · 计算机科学 2017-11-30 Xiaoshen Song , Saeid Haghighatshoar , Giuseppe Caire

Receivers with one-bit analog-to-digital converters (ADCs) are promising for high bandwidth millimeter wave (mmWave) systems as they consume less power than their full resolution counterparts. The extreme quantization in one-bit receivers…

信号处理 · 电气工程与系统科学 2020-02-11 Nitin Jonathan Myers , Kayla N. Tran , Robert W. Heath

Millimeter wave (mmWave) localization algorithms exploit the quasi-optical propagation of mmWave signals, which yields sparse angular spectra at the receiver. Geometric approaches to angle-based localization typically require to know the…

网络与互联网体系结构 · 计算机科学 2022-05-23 Anish Shastri , Joan Palacios , Paolo Casari

Hybrid analog and digital precoding allows millimeter wave (mmWave) systems to achieve both array and multiplexing gain. The design of the hybrid precoders and combiners, though, is usually based on knowledge of the channel. Prior work on…

信息论 · 计算机科学 2016-11-15 Kiran Venugopal , Ahmed Alkhateeb , Nuria González Prelcic , Robert W. Heath

Fifth generation (5G) cellular standards are set to utilize millimeter wave (mmWave) frequencies, which enable data speeds greater than 10 Gbps and sub-centimeter localization accuracy. These capabilities rely on accurate estimates of the…

信号处理 · 电气工程与系统科学 2018-10-22 Macey Ruble , Ismail Guvenc

Millimeter wave (mmWave) communications have been postulated as one of the most disruptive technologies for future 5G systems. Among mmWave bands the 60-GHz radio technology is specially suited for ultradense small cells and mobile data…

网络与互联网体系结构 · 计算机科学 2016-05-19 Cristina Perfecto , Javier Del Ser , Muhammad Ikram Ashraf , Miren Nekane Bilbao , Mehdi Bennis