scholarly journals Retraction Note to: Power Budget Analysis of an Ultra-Dense Coherent MB-OFDM WDM Metro-Access Networks

Author(s):  
A. Sangeetha ◽  
I. Srinivasa Rao
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Vaibhav Shukla ◽  
Nikunj Sharma ◽  
Dilip Kumar Choubey

AbstractRecently, in the present day’s data center systems an explosive growth has been observed in data traffic, which restricts the speed of exiting data communication network. To solve such problem, fiber optical-based optical communication system is preferred choice. In this paper, an arrayed waveguide grating (AWG)-based optical packet switch is presented in which priority among packets is implemented effectively. This switch is a recirculating loop buffer-based switch in which a hybrid buffering (optical + electrical) technique is used for storing packets into the buffer. The power budget analysis of switch is presented in various conditions, when packet passes through the optical or electronic buffers. Comparison of optical and electronic buffering is done in terms of power required for the correct operation of the switch. In this paper, a comparison is performed between our proposed switch with recently published switch designs. The result presented in this paper clearly reveals that the performance of our proposed switch is far better than other previously published switch architecture. The major beauty of our proposed switch is that in this design priority among packets implemented effectively.


2014 ◽  
Vol 35 (3) ◽  
Author(s):  
Yousaf Khan ◽  
Muhammad Idrees Afridi ◽  
Ahmed Mudassir Khan ◽  
Waheed Ur Rehman ◽  
Jahanzeb Khan
Keyword(s):  

2009 ◽  
Vol 8 (4) ◽  
pp. 370 ◽  
Author(s):  
C. Michie ◽  
A. E. Kelly ◽  
J. McGeough ◽  
S. Karagiannopoulos ◽  
I. Andonovic

2020 ◽  
Vol 10 (21) ◽  
pp. 7690
Author(s):  
Hichem Mrabet

The purpose of this article is to propose a new configuration based on OCDMA and Fast-OFDM techniques for access network applications. A hybrid intensity modulation with direct detection, fast orthogonal frequency-division multiplexing–code division multiplexing access (IM/DD Fast-OFDM-CDMA) system is analytically and numerically evaluated for an amplifier-free access network. Therefore, system performance is analytically investigated in terms of bit error rate/Q-factor as a function of simultaneous users, fiber length and launched optical power. Firstly, the proposed analytical model includes the overlapping effect among OFDM subcarriers, the peak-to-average power ratio (PAPR), and multiple access interference (MAI). Secondly, a simulation setup is performed, allowing four simultaneous users operating at 40 Gb/s in a passive optical network (PON) context. Furthermore, a power budget analysis is made between IM/DD Fast-OFDM-CDMA, all-optical IM/DD OFDM-CDMA (IM/DD AO-OFDM-CDMA) and OCDMA wavelength division multiplexing (OCDMA-WDM) configurations. It is shown that at 40 Gb/s and by using 2D-hybrid coding (2D-HC), the maximum achievable transmission-reach of IM/DD Fast-OFDM-CDMA is 142 km, which is 34 km and 60 km higher than those provided by the IM/DD AO-OFDM-OCDMA and OCDMA-WDM PON configurations, respectively.


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