Blockage robust millimeter-wave networks

• 来源期刊: 中国科学（信息科学）
• 关键词: @@
• 年，卷（期）: 2017,（8）
• 页码范围: 73-75
• 页数: 3页
• 语种: 中文
• DOI: 10.1007/s11432-017-9147-0

摘要

Millimeter-wave (mmWave) technique (from around 24 GHz to 300 GHz) becomes a key enabler of high date rates for future mobile communications [1].In spite of many appealing benefits,mmWave communications also encounter several critical challenges,i.e.,very weak capability in penetration,diffraction and high-order reflections,due to the short wavelength [2].That indicates,the transmission in mmWave bands can be blocked easily if any obstacle,e.g.,human body or vehicle in motion,occurs on the propagation path.From the reliable communications perspective,the blockage seriously deteriorates the robustness performance of mmWave communications,e.g.,20-30 dB loss in terms of power for human-induced blockages [2].Thus,for delay-sensitive real-time applications based on mmWave networks,preserving the connectivity in the presence of blockages is a very crucial task.In this paper,we comprehensively review the research achievements on the robustness of mmWave networks.