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http://dx.doi.org/10.5573/ieek.2013.50.2.020

PHY Frame Structure Design for M2M Direct Communications  

Oh, Changyoon (Inha Technical College, Information & Communications Department)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.2, 2013 , pp. 20-26 More about this Journal
Abstract
We propose PHY Frame Structure for M2M direct communications in licensed frequency band. Especially, the proposed PHY Frame Structure coexists in the same licensed frequency band as currently operating cellular systems. Recently, Machine to Machine (M2M) service markets, including SmartGrid, Mobile Health, and Smart Car, are being rapidly expanded. Supporting M2M services in a specific case can waste Radio Resource in cellular systems. For example, when two M2M terminals communicating to each other are closely located, direct communication is radio resource efficient. In this paper, we set the requirement of maintaining the existing PHY frame structure in cellular systems to meet the backward compatibility. Based on this backward compatibility requirement, PHY frame structure for M2M direct communications is developed while satisfying coexistence with current operating cellular system. The proposed PHY frame structure meets backward compatibility. Accordingly, it is expected that the proposed M2M frame structure is useful for its frequency resource efficiency.
Keywords
Frame Structure; M2M; Direct Communications;
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