Informatics Publishing Limited

Shilpa S. Patil ¹, Bharat S. Chaudhari ²

Affiliations
1 Department of Electronics and Telecommunication Engineering, Maharashtra Institute of Technology, Pune-411038
2 Department of Electronics and Telecommunication Engineering, Maharashtra Institute of Technology, Pune, 411038, IN

Abstract

Now a days silicon photonics is a promising technology for many core systems that gives low power dissipation, high throughput and low latency over electrical interconnects. The optical network on chip (ONoC) with wavelength division multiplexing technique is a novel technique to satisfy the power budget for high terabit scale, higher data rates and large bandwidth. The routing technique plays a vital role in the network performance of Benes network. We have proposed an enhanced distributed routing technique for Benes network.

The proposed algorithm is assessed by comparing it with previous adaptive routing algorithm for Benes network in terms of time and end to end delay parameters. The proposed algorithm shows the better results as compare to previous mentioned techniques. The improvement in performance shows average of 87% with new enhanced distributed routing algorithm for end to end delay and time required for the execution of the routing algorithm.

Keywords

Optical Network on Chip (ONoC), Benes Network, Adaptive Routing, End to End Delay.

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Vivek S. Kale ¹, Shilpa S. Patil ¹, Vidyadhar Satoskar ¹, Prakhar Kumar ²

Affiliations
1 Department of Geology, University of Pune, Pune - 411 007, IN
2 Atomic Minerals Division, D.A.E., Hyderabad - 500016, IN

Abstract

This note records the presence and systematics of ichnogenus Planolites Nicholson from the Cuddapah Basin. The host sandstones are exposed in the Nalgonda district of Andhra Pradesh, on the border between Palnad and Srisailam subbasins of the Cuddapah Basin. Planolites is known to occur in strata of Neoproterozoic and younger ages.

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Shilpa S. Patil ¹, Bharat S. Chaudhari ¹, Baojun Li ²

Affiliations
1 Department of Electronics and Telecommunication Engineering, Maharashtra Institute of Technology, IN
2 State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, CN

Abstract

In wavelength division multiplexed all optical networks; lightpath establishes a connection between sending and receiving nodes bypassing the electronic processing at intermediate nodes. One of the prime objectives of Routing and Wavelength Assignment (RWA) problem is to maximize the number of connections efficiently by choosing the best routes. Although there are several algorithms available, improving the blocking performance in optical networks and finding optimal solutions for RWA problem has still remained a challenging issue. Wavelength conversion can be helpful in restricting the problem of wavelength continuity constraint but it increases complexity in the network. In this paper, we propose new weight dependent routing and wavelength assignment strategy for all optical networks without use of wavelength converters. Proposed weight function reduces blocking probability significantly, improving the network performance at various load conditions. Further, due to absence of wavelength converters, the cost and complexity of network reduces. Results show that the proposed strategy performs better than earlier reported methods.

Keywords

WDM, Lightpath, RWA, NSFnet, Blocking Probability.

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