This paper presents an alternate quasi-resonant dc link (QRDCL) circuit for soft switched inverters which does not require paralleling of a charged capacitor with another charged capacitor or a voltage source. The circuit momentarily pulls down the DC link voltage to zero as commandled by the control circuit to facilitate zero voltage switching (ZVS) of inverter devices. Operation of this circu...

this paper proposes a buffer circuit for footed domino logic circuit. It minimizes redundant switching at the output node. This circuit prevents propagation of precharge pulse to the output node during precharge phase which saves power consumption. We have calculated the power consumption, delay and power delay product of proposed circuits and compared the results with existing domino circuit f...

All-optical Wavelength DivisionMultiplexing (WDM) networks are believed to be a fundamental component in future high speed backbones. However, while wavelength routing made circuit switching in WDM feasible the reality of extant optical technology does not yet provide the necessary devices to achieve individual optical packet switching. This paper proposes to achieve all-optical packet switchin...

The growth of Multi-Protocol Label Switching (MPLS) as the emerging choice for provisioning and managing core networks has placed significant emphasis on MPLS based recovery mechanisms. The present global protection frameworks require extensive involvement of Label Switching Routers (LSRs) in the protection framework. The LSRs are involved in failure propagation and maintenance of information r...

Wireless LANs are becoming commonplace because of their ease in providing mobile communication. As use of IEEE 802.11 continues to expand, support for voice will Preprint submitted to Elsevier Science 2 December 2004 become a desirable feature. Supporting voice conversations over a packet network is more challenging than over current circuit switched wired networks. These challenges are particu...

Discrete-time communication networks are studied as due to digital transmissions. Simultaneous multiple transmission requests and completions as well as blocking are hereby involved. Scheduling times and packet lengths are allowed to have a general discrete distribution. A discrete-time product form result is obtained for the steady-state busy source distribution. Particularly, this form is sho...

Thank you very much for inviting me to speak with you today. Recently, the Federal Communications Commission (FCC) has been spending a great deal of time and energy considering the best, most appropriate regulation of broadband networks and IP-enabled services.1 Today, I want to focus on an important aspect of our discussions. Namely, what are the implications of the digital revolution for our ...

In the 1980s the primary networks were circuit-switched. These networks were public utilities operated as monopolies. As we all know, circuit-switched networks have been largely replaced by packet-switched networks. Public utilities have been replaced by a highly competitive marketplace. An older generation of engineers has been replaced by a new one, and the appreciation of formal methods has ...

In the last years, since the early 80’s, wormhole and virtual cut-through routing modalities have replaced packet switching and circuit switching schemes. In this paper we give the theoretical bases to implement hole based (HB) routing algorithm [3] by using the virtual cut-through

A hybrid channel assignment (HCA) scheme in direct sequence-code division multiple access (DS-CDMA) systems for accommodating integrated voice/data traffic is proposed and the required power levels of voice and data traffic are derived. These levels can be used to maintain the minimum required link qualities of all calls. In the proposed scheme, delay-sensitive voice traffic is accommodated in ...