Rochak Bajpai

GLA University · Department of Electronics & Communications

Communication, which intends to provide a link between any two people, is now moving towards man-to-machine and machine-to-machine connection for transferring different types of data. This transmission scenario, with and ever expanding number of active and passive users, lays the foundation to variety of communication protocols owing to the differe...

The tremendous increase in volume and heterogeneity of traffic has resulted in significant innovations in telecommunication networks. In view of optical networks, by adopting a mixed line rate (MLR) strategy, wavelength division multiplexed networks can cost-effectively respond to diverse variety of traffic requirements which have heterogeneous ser...

The tremendous increase in volume and heterogeneity of traffic has resulted in significant innovations in telecommunication networks. In view of optical networks, by adopting a mixed line rate (MLR) strategy, wavelength division multiplexed networks can cost-effectively respond to diverse variety of traffic requirements which have heterogeneous ser...

With the steady increase in the heterogeneous Internet traffic, the optical wavelength division multiplexed (WDM) networks based on a mixed line rate (MLR) strategy have emerged as an efficient-solution. Also, with the migration from the legacy to the higher line rate(s), the advanced modulation format(s) (MF) is/are required. However, use of appro...

Abstract—With advancement in telecommunication technology spectrally efficient modulation formats are used at high data rates. Long haul network deploy various dispersion compensation mechanisms based on dispersion compensation fiber (DCF). The work presented in this paper explores the suitability of pre, post and symmetrical dispersion compensatio...

In this article, we investigate the performance degradation of a mixed line rate (MLR) optical wavelength division multiplexing (WDM) network in the presence of combined effects of four-wave mixing (FWM), cross phase modulation (XPM) and Stimulated Raman Scattering (SRS). For performance evaluation we develop a novel mathematical model which evalua...

The tremendous and consistent increase in the volume and heterogeneity of traffic has resulted in major innovations in the telecommunication networks. In regard to the optical networks, existing studies have shown that by adopting a mixed line rate (MLR) strategy, the wavelength division multiplexed optical networks can cost-effectively respond to...

In order to cope up with increasing demand of heterogeneous traffic, mixed line rate optical network has emerged as cost effective solution. A mixed line rate optical network supports different data rates on different wavelengths within the same fiber. The optical reach of this network is severely limited by the noise contributed from the combined...

A technique to improve the spectral efficiency without any loss in transmission reach of MLR optical WDM has been proposed, by varying the number of channels in each sub-band with condition that the performance metric ‘Q’ value is above the threshold limit. Results prove that sub-band placement plays an important role in deciding the transmission r...

With the ever-increasing traffic demands, the infrastructure of current 10 Gbit/s optical network needs to be enhanced. The legacy infrastructure can be enhanced not only by increasing the capacity, but also by adapting advance modulation format, having increased spectral efficiency at higher data rate. In all-optical mixed line rate (MLR) network,...

This article summarizes the main challenges that arise, and that need to be addressed in the core optical networks of the next generation, focusing on energy efficiency and awareness, heterogeneity of the traffic and the ever-growing need for transmission capacity. In all-optical mixed line rate (MLR) network, feasibility of a lightpath is determin...

This article summarizes the main challenges that arise, and that need to be addressed in the core optical networks of the next generation, focusing on energy efficiency and awareness, heterogeneity of the traffic and the ever-growing need for transmission capacity. In all-optical mixed line rate (MLR) network, feasibility of a lightpath is determin...

With the ever-increasing traffic demands, the infrastructure of current 10Gbps optical network needs to be enhanced. The legacy infrastructure can be enhanced not only by increasing the capacity, but also by adapting advance modulation format, having increased spectral efficiency at higher data rate. In all-optical mixed line rate (MLR) network, fe...

This paper emphasis is on the importance of simulation techniques in the field of digital image processing. Simulations are carried out for implementation of various basic image enhancement techniques on MATLAB in spatial domain as well as the frequency domain. Through this simulation, it is concluded that the frequency domain analysis is easier to...