Quantum fading channel and its information carrying limit, coding-decoding, and modulation

2015 Fiscal Year Final Research Report

• Project/Area Number: 24360151
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Aichi Prefectural University
• Principal Investigator: USUDA Tsuyoshi 愛知県立大学, 情報科学部, 教授 (80273308)
• Co-Investigator(Renkei-kenkyūsha): TAKUMI Ichi 名古屋工業大学, 工学研究科, 教授 (30188130) ; USAMI Shogo 名城大学, 理工学部, 准教授 (30387758) ; SHIROMOTO Keisuke 熊本大学, 工学研究科, 教授 (00343666)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 情報通信工学 / 量子情報理論 / 量子通信 / フェージング / 通信路容量

Outline of Final Research Achievements

A half-century has passed after studies of quantum communication began. Now we dream the day that quantum communication systems are used everyday. To achieve the goal, we should study all kinds of subjects which contain not only popular issues but also sober or more realistic ones. One of such issues is a quantum fading channel which is essential in wireless quantum communications.
In this study, we consider a channel model of a quantum fading and show performance of quantum communication systems when we apply various coding-decoding, and modulation. As a result, quantum receivers clearly outperform classical ones under the fading environment.

Free Research Field

工学