Given the ever increasing demand for network bandwidth, and the recent phenomenal advances in optical wavelength division multiplexing (WDM) networking technologies, a major component of the Next Generation Internet will be an Internat protocol (IP)-based optical WDM network. As IP over WDM networking technologies mature, a number of important architectural, management and control issues have s...

We describe an optical time-division-multiplexed (OTDM)/WDM network architecture that integrates high-speed optical time-division multiplexing at speeds of 40 Gbit/s and higher with lower-bit-rate WDM channels. An ultrafast wavelength converter is used as a regenerative multifunction building block for OTDM multiplexing, WDM-to-OTDM and OTDM-to-WDM transmultiplexing, OTDM/WDM multicasting, OTDM...

در این مقاله یک مدل ریاضی برای مسئله سیستم تولیدی همکارانه ساخت بر اساس سفارش با رعایت انصاف تخصیص بار‌های تولید طراحی شده است. اهداف اصلی مدل، کمینه‌سازی هزینه‌‌های کل و حداکثر استفاده از منابع به‌منظور عادلانه شرایط عدم­قطعیت کنترل پارامتر‌های غیرقطعی روش برنامه‌ریزی فازی ‌شده نتایج نشان می‌دهد افزایش نرخ عدم‌قطعیت، می­یابد. ازآنجاکه ظرفیت کارخانه‌ها ثابت است، مقدار تقاضا، هر کارخانه نیز می­ی...

In this paper, we first show that a wavelength division multiplexed (WDM) split crossconnect is strictly, wide-sense, or rearrangeably non-blocking if and only if a corresponding 3-stage Clos network is strictly, wide-sense or rearrangeably non-blocking. This observation implies known results on strictly non-blocking WDM split cross-connects and gives rise to new results on wide-sense and rearr...

The optical CDMA and WDM systems have been of widespread implementation for local and metro access network. This is because optical CDMA systems provide users both simultaneous and asynchronous access to networks with high security [1], and WDM systems provide a relatively high transmission capacity [2]. In addition, optical CDMA can be overlaid onto existing WDM networks in order to enhance th...

As WDM technology matures, IP over WDM multicast becomes a new challenging topic. Supporting multicast at the WDM layer provides additional advantages, but also raises many new issues that do not exist in IP multicast. For example, the limitation on the light splitting capability of switches is one major difficulty in WDM multicast, and in addition, the limitations on both the wavelength conver...

We describe a source-rooted WDM multicast tree construction protocol to support IP dense mode multicast routing protocols in all-optical lambda-switched networks. Using a receiver-initiated approach, the protocol relies on a mechanism that collects information on the capabilities of WDM nodes. This mechanism provides receivers with sufficient information to setup WDM multicast trees in networks...

We describe a source-rooted WDM multicast tree construction protocol to support IP dense mode multicast routing protocols in lambda-switched all-optical networks. Using a receiver-initiated approach, the protocol relies on a mechanism that collects information on the capabilities of WDM nodes. This mechanism provides receivers with sufficient information to setup WDM multicast trees in networks...

The Wiener diffusion model (WDM) for 2-alternative tasks assumes that sensory information is integrated over time. Recent neurophysiological studies have found neural correlates of this integration process in certain neuronal populations. This paper analyses the properties of the WDM with two different boundary conditions in decision making tasks in which the time of response is indicated by a ...

The fiber-optic communication lines and transmission systems using cable, receiving transmitting optical modules based on WDM DWDM (Wavelength Division Multiplexing & Dense WDM) technologies are studied. A method for calculating the characteristics is proposed relationships obtained that establish an analytical relationship between length regeneration section rate. This paper discusses stud...