Comparative Evaluation of Photonic ATM Switch Architectures
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概要
- 論文の詳細を見る
In this paper, we discuss configurations of photonic ATM(Asynchronous Transfer Mode) switches and their advantages in terms of the number of optical switching devices to be implemented on the system, the number of wavelenghs, throughput, broadcast function etc. In particular, we focus on photonic ATM switch architectures which can be built in the near future; that is, with presently available optical and electrical devices. For example, we assume the optical devices such as optical gate switches with 40 dB on/off ratio. In this context, we evaluate 17 types of photonic ATM switches; they are 6 types of input buffer type switches, 6 types of output buffer type switches, 4 types of shared buffer switches, and 1 proposed type. From our evaluation, for cell switching, wavelength division switching technologies are desirable compared with space division switching technologies in the sense that the former enables us to build a photonic ATM switch with the less number of optical gate switches. Furthermore, we propose a switch architecture equipped with optical delay line buffers on outputs and electric buffers on inputs. We show that our switch architecture is superior in the number of required optical gate switch elements under the given conditions.
- 社団法人電子情報通信学会の論文
- 1998-02-25
著者
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SUNAHARA Hideki
NAIST
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Sunahara Hideki
Naist: Nara Institute Of Science And Technology
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Oie Yuji
Faculty Of Computer Science And System Engineering Kyushu Institute Of Technology
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NAKAHIRA Yoshihiro
NAIST
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Nakahira Y
Oki Electric Ind. Co. Ltd. Hachioji‐shi Jpn
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