Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Dobre, O."'
Publikováno v:
Advances in Electrical and Computer Engineering, Vol 13, Iss 4, Pp 41-46 (2013)
Even if the traffic pattern is known and the network topology is simple, a strong congestion can take place in wireless sensor networks (WSNs) due to the data gathering effect and the duty-cycle operation. In this paper, we propose a novel medium acc
Externí odkaz:
https://doaj.org/article/48545c8f99434e1ca415cdd7e0b1f85e
We investigate the impact of polarization-dependent loss (PDL) on the linearly coded digital phase conjugation (DPC) techniques in coherent optical orthogonal frequency division multiplexing (CO-OFDM) superchannel systems. We consider two DPC approac
Externí odkaz:
http://arxiv.org/abs/2106.15405
The first-order (FO) perturbation theory-based nonlinearity compensation (PB-NLC) technique has been widely investigated to combat the detrimental effects of the intra-channel Kerr nonlinearity in polarization-multiplexed (Pol-Mux) optical fiber comm
Externí odkaz:
http://arxiv.org/abs/2106.14230
We propose a technique combining the singlechannel digital-back-propagation (SC-DBP) with phaseconjugated-twin-wave (PCTW) to compensate nonlinearities in CO-OFDM superchannel systems. This exhibits a similar performance as multi-channel DBP while pr
Externí odkaz:
http://arxiv.org/abs/2106.14212
Autor:
Kumar, O. S. Sunish, Dobre, O. A., Venkatesan, R., Wilson, S. K., Omomukuyo, O., Amari, A., Chang, D.
In this paper, we propose a linear polarization coding scheme (LPC) combined with the phase conjugated twin signals (PCTS) technique, referred to as LPC-PCTS, for fiber nonlinearity mitigation in coherent optical orthogonal frequency division multipl
Externí odkaz:
http://arxiv.org/abs/2106.14205
In this paper, we investigate a multi-cell uplink non-orthogonal multiple access (NOMA) system with imperfect successive interference cancellation (SIC). The objective of the formulated optimization problem is to minimize the total power consumption
Externí odkaz:
http://arxiv.org/abs/2007.10001
In this paper, we study the resource allocation for an intelligent reflecting surface (IRS)-assisted uplink system, where the base station is equipped with multiple antennas. We propose to jointly optimize the transmit power of the users, active beam
Externí odkaz:
http://arxiv.org/abs/2007.10002
The first-order (FO) perturbation theory has been widely investigated to design the digital nonlinearity compensation (NLC) technique to deal with the intra-channel fiber nonlinearity effect in coherent optical communication systems. The main advanta
Externí odkaz:
http://arxiv.org/abs/2005.01191
Publikováno v:
IEEE COMML 2020
An intelligent reflecting surface (IRS) consists of a large number of low-cost reflecting elements, which can steer the incident signal collaboratively by passive beamforming. This way, IRS reconfigures the wireless environment to boost the system pe
Externí odkaz:
http://arxiv.org/abs/2004.10791
In this paper, the secrecy of a cooperative system consisting of a single source, relay, destination and eavesdropper is analyzed. The threshold-selection decode-and-forward relay is considered, where the relay can correctly decode and forward only i
Externí odkaz:
http://arxiv.org/abs/1803.00636