摘要:

AbstractThis paper studies the non‐blocking conditions of a genericN × Nmultistage interconnection network, such as an omega network or ann‐cube network, in which only one path connects any inlet to each outlet and different I/O paths can share interstage links. It is widely known that any of these networks is non‐blocking for a compact and monotone pattern ofk≤NI/O paths. Recently it has become very important to show the network non‐blocking property for permutation sets, wider than the compact and monotone, which are usually encountered in broadband ATM networks. By using a new approach based on the concept of distance between I/O paths, we show here that these networks are non‐blocking for a set of I/O paths obtained by shifting cyclically the inlets of a compact and monotone pattern of I/O paths by an arbitrary num

ISSN:1047-9627    

DOI:10.1002/dac.4510060302

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

摘要:

AbstractAs the bandwidth‐delay product of ring networks increases, conventional access protocols, such as the gated token protocol, become less efficient. We propose overcoming this problem with contention‐based access protocols. We discuss the necessary properties of any contention ring access protocol and present two specific proposals. Some simple analysis and simulation is done to determine the performance of these protocols. Our protocols are shown to have better end‐to‐end delay than a gated token protocol. We also simulate another contention protocol called thehybridprotocol, proposed by Bhargava,et al.It is shown that the simple protocols described in this paper have performance comparable to that of the more complex hybrid protocol on networks with high bandwidth‐delay

ISSN:1047-9627    

DOI:10.1002/dac.4510060303

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

摘要:

AbstractThis paper introduces a method to analyse the self‐framing properties ofmBnB line codes. Consideration of correlation in the received bit stream yields a three step analysis technique: (1) evaluation of the probability that anyn‐bit sequence in the received bit stream simulates a codeword, (2) development of a mathematical description of the desired lock entry and lock exit algorithms, and (3) the derivation and evaluation of equations which give framing performance for the frame search strategy of interest. Following discussion of the analysis technique, the framing performance of a 7B8B code is investigated. The results of the analysis are compared with those obtained by simulation to confirm the validity of the analysis techni

ISSN:1047-9627    

DOI:10.1002/dac.4510060304

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

摘要:

AbstractWithin the framework of the ‘FITL (fibre in the loop) evolution’, Siemens is developing a prototype based on a passive optical network (PON) for the economic provision of BISDN services in the subscriber access area. It provides 32 subscribers with BISDN access up to a maximum user data rate of 45 Mbit/s per subscriber. The information is transferred via ATM cells and PON‐specific overhead in both directions on the PON at a data rate of 155.52 Mbit/s. For transmission to the subscribers, the time division multiplex procedure (TDM) is used. For transmission in the opposite direction, a highly flexible time division multiple access procedure (TDMA) controls the access to PON for the subscriber‐side line terminations.In order to keep the transmission system inexpensive emphasis is placed on a digital calibration of the fibre loop delay, a burst transmitter at the subscriber side without amplitude recovery and a burst receiver at the exchange side with purely digital bit synchronization. However, to achieve these features a small part of data rate must be used as a PON specific o

ISSN:1047-9627    

DOI:10.1002/dac.4510060305

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

摘要:

AbstractIn this paper, multiple‐phase deterministic protocols for packet radio networks are introduced and analysed. Two modes of information transfer are considered, namely (a) broadcasting and (b) point‐to‐point transmission. We explore systematic ways of designing multiple‐phase protocols and apply them on Manhattan networks. The proposed protocols are studied primarily from the point of view of throughput efficiency. Delay analysis is also pr

ISSN:1047-9627    

DOI:10.1002/dac.4510060306

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

摘要:

AbstractThe introduction of ATM and broadband‐based equipment into the European market requires considerable capital investment. It will result in a structural technological change, affecting the competitiveness of the European economy. Successful introduction depends onhowboth ATM network equipment and broadband based end‐user equipment are brought onto the market. This paper focuses on economic benefits and anticipating marketing strategies, applicable in Europe with its specific, historically evolved structures. The price to pay for this ‘in‐sight information’ is leaving out a global comparison. Refraining from evaluation whether conditions are good or bad for Europe or other areas, the article explains what conditions can be found there recently and where are the chances and challenges

ISSN:1047-9627    

DOI:10.1002/dac.4510060307

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

ISSN:1047-9627    

DOI:10.1002/dac.4510060308

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY

ISSN:1047-9627    

DOI:10.1002/dac.4510060301

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1993

数据来源: WILEY