Mr. Guangxiang Yang Profile

Guangxiang Yang

at Wuhan Univ of Technology

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Proceedings Article | 21 March 2006 Paper

Research and emulation of ranging in BPON system

Guangxiang Yang, Dexin Tao, Yan He

Proceedings Volume 6040, 60400O (2006) https://doi.org/10.1117/12.664166

KEYWORDS: Ranging, Systems modeling, Process modeling, Optical networks, Manufacturing, Telescopic pixel displays, Signal processing, Receivers, Transmitters, Titanium dioxide

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Ranging is one of the key technologies in Broadband Passive Optical Network based on the ATM (BPON) system. It is complex for software designers and difficult to test. In order to simplify the ranging procedure, enhance its efficiency, and find an appropriate method to verify it, a new ranging procedure that completely satisfies the requirements specified in ITU-T G.983.1 and one verifying method is proposed in this paper. A kind of ranging procedure without serial number (SN) searching function, called one-by-one ranging are developed under the condition of cold PON, cold Optical Network Termination (ONU). The ranging procedure includes the use of OLT and ONU flow charts respectively. By using the network emulation software OPNET, the BPON system is modeled and the ranging procedure is simulated. The emulation experimental results show that the presented ranging procedure can effectively eliminate the collision of burst mode signals between ONUs, which can be ranged one-by-one under the controlling of OLT, while also enhancing the ranging efficiency. As all of the message formats used in this research conform with the ITU-T G.983.1, the ranging procedure can meet the protocol specifications with good interoperability, and is very compatible with products of other manufacturer. According to the present study of ranging procedures, guidelines and principles are provided, Also some design difficulties are eliminated in the software design.

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