【正文】 目 錄 通訊與網(wǎng)絡(luò) A few powerful nodes enhance mobile work connectivity ................................................... 1 Chirp signaling offers modulation scheme for underwater munications ............................... 3 Enabling smart service delivery in fibertothehome works ................................................ 7 Virus boosts nanoparticle memory ....................................................................................... 9 更大更快更安全 我國下一代互聯(lián)網(wǎng)達世界領(lǐng)先水平 ....................................................... 10 信息技術(shù) A Bright Future for Spintronics.......................................................................................... 11 Bringing Light to Silicon .................................................................................................. 13 Nanowire Computing Made Practical ................................................................................. 15 新設(shè)計將制造出 3兆兆赫芯片 ........................................................................................ 16 納米技術(shù) Hybrid nanomaterials improve solar cell efficiency .............................................................. 17 Imaging reveals working nanodevices39。 topology and electronic processes................................ 20 Modeling photoexcited carrier interactions in semiconductor nanostructures............................ 23 Solution processing simplifies the manufacturing of carbonnanotube transistors ..................... 26 光學(xué)工程 Detecting chemical, biological, and explosive agents ............................................................ 29 Formable pound microlens arrays ............................................................................... 33 Optical microscopy on the Inter ..................................................................................... 36 Using fluids to manipulate nanoscale optics ........................................................................ 39 物理新知 A boost for solar cells with photon fusion ........................................................................... 42 Quantum backaction has a cooling effect ........................................................................... 43 Bubbles collapse without weight ........................................................................................ 44 Quantum encryption sets longdistance record ..................................................................... 45 Laser controls chemical reaction rates................................................................................. 46 Physicists make atomic clock breakthrough ......................................................................... 47 遙感技術(shù) Conquering deliveryfiber noise in remote sensing ............................................................... 48 Finitesized water vapor clouds affect interferometry phase corrections .................................. 51 項目介紹 Advanced Optimization Technology to Enhance Business Decision Making............................ 55 CoatingEnabled Component Design: Technology Tools for Nanostructures Coatings .............. 56 Security Framework to Exchange Data That Enhances Productivity ....................................... 58 Extended portable power through innovative integration of energy technologies ...................... 59 主辦單位：電子科技大學(xué)圖書館 編員會：張曉東 黃思芬 汪育健 侯壯 張毓晗 曹學(xué)艷 李世蘭 劉靜 張宇娥 黃崇成 陳茂興 本期責(zé)編：張毓晗 編輯部電話： (028)83202340 2020 年 11 月 10 日出版 1 A few powerful nodes enhance mobile work connectivity Xiyu Shi, Christopher Adams, Ahmet Kondoz Strategically positioned nodes with extra transmission power can maintain systemwide connectivity in ad hoc works. A mobile ad hoc work (MANET) is a temporary collection of wireless nodes municating without the benefit of infrastructure. A connection between two nodes may involve several others in what is known as multihop routing. MANET can be used in situations in which, for example, soldiers relay and share information on a battlefield or relief workers coordinate efforts during an emergency. A basic requirement of a MANET is that it must maintain higher work connectivity, loss of which could entail severe consequences. Therefore, a principal task is to set up a route that connects source and destination nodes. Due to the dynamic shifts in work topology, multihop routing is neither stable nor preestablished. Several different MANET routing protocols have been proposed in recent years,1–4 but research has shown that they are incapable of maintaining high connectivity in the face of diminished node ,6 Our simulation7 confirms this. Moreover, the protocols may require bidirectional links such that if node A can receive data from node B, then B can also receive data from A. However, this is not always the case. There might be numerous unidirectional links where node transmission power is affected by interference, building blockages, etc. Our approach to enhance MANET work connectivity is to employ a few nodes with larger transmission power as strategic or backbone nodes (BN). These help to establish connections between remote nodes that are otherwise unable to connect. In Figure 1, BN1 and BN2 are the strategic nodes with the capacity for mesh connecting with each other. Nodes in the upper area (A, B, and G) are sufficiently far from nodes in the lower area (C, D, E, and F) that no node in the lower area could directly reach any node in the upper area, and vice versa. With the assistance of BN1 and BN2 however, such connections can be established. Figure 1. In this model of backbonenode (BN)supported wireless ad hoc works, nodes A, B, and G connect to C, D, E, and F via BN1 and BN2. Routes are set up as follows: mobile nodes near each other can have direct connections (. C → D), and mobile nodes near BNs but without direct connections can be c