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- From: kriman@acsu.buffalo.edu (Alfred M. Kriman)
- Newsgroups: wny.seminar,ny.seminars
- Subject: SUNY@BUFFALO; Fri 20 Nov; Fiber Optic Interconnection of LAN's; Tonguz
- Summary: ECE Seminar -- 3:00 pm in Rm. 127 at Cooke Hall
- Message-ID: <BxwJuF.GFw@acsu.buffalo.edu>
- Date: 18 Nov 92 08:06:14 GMT
- Sender: nntp@acsu.buffalo.edu
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- Organization: UB = University at Buffalo = SUNYAB = State U of New York At B
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- Seminar -- Electrical and Computer Engineering Department
- +-----------------------------------------------+
- | Title: "Fiber Optic Interconnection of |
- | Local Area Networks" |
- | |
- | Speaker: Prof. Ozan K. Tonguz |
- | of: Dept. of Electrical & Computer Eng. |
- | at SUNYAB |
- +-----------------------------------------------+
-
- Location: Room 127 of Cooke Hall, Amherst Campus of SUNYAB
-
- Date: Friday, November 20, 1992
-
- Time: 3:00 PM (Refreshments 2:45 PM)
-
- Information: SUNYAB Department of Electrical & Computer Engineering:
- Dept. Office: (716) 645-2422 FAX: (716) 645-3656
-
- _A_B_S_T_R_A_C_T:
- This talk examines the physical limitations imposed by basic topologies and
- access couplers in fiber-optic interconnection of local area networks (LANs).
- To that end, a detailed comparison of the basic topologies and node couplers
- is provided. The comparison is in terms of the amount of fiber required,
- average propagation delay, fault tolerance, maintainability, number of node
- couplers required, and maximum bit rate. These results lead to simple guide-
- lines for the choice of topology and the type of node couplers that may be
- used in practical LAN interconnection. Results indicate that for 100 node LAN
- interconnection, the star topology requires 3.8 times as much fiber as a dual
- ring, which may be of significant concern if the interconnection network is in
- an urban business area. The average propagation delay of a dual ring for a
- 100 node interconnection, on the other hand, is 3.33 times that of the star.
- This may be a significant disadvantage in LAN interconnection networks where
- the distance between nodes is large. The maximum bit rate, by assuming simple
- direct detection, is calculated for a fiber network based on the topology and
- type of node coupler. Our results show that the more fault tolerant a node
- coupler is, the lower is the maximum bit rate it can support.
-