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Author(s) Mohammed IIyas, Sam Hsu and Kwok Choi
Affiliation Department of Computer Science &Engineering Florida Atlantic University, Boca Raton, Florida, USA33431
Title Counter Rotating Slotted Ring: ANew Architecture
Source Journal of King Saud University. Computer & Information Sciences. Volume 13, No 1. (2001/1421)
Abstract 10 this paper, we describe and analyze a new architecture for ring Metropolitan Area Networks (MANs): Counter Rotating Slotted Ring (CRSR). CRSR consists of two unidirectional rings shared among the network stations. Both the rings have erasure nodes appropriately placed between each or several stations. The transmission time is slotted. Each slot has some control bits and one of the control bit indicates if the slot is busy or not. An empty slot can be marked as busy and used for transmitting data. Once a busy slot reaches its destination, the data is read and the slot is marked as "read". The erasure nodes identify the "read" slots and erase the data fTom these slots so that the slots can be reused. This process reduces the traffic intensity, which in turn results in less bandwidth requirements for transporting the same amount of information. The performance of CRSR is evaluated by using mathematical and simulation techniques. Several interesting results are presented in this paper in comparison with DQDB.