A novel analytical approach to the evaluation of the impact of fiber parametric gain on the bit error rate

2001 ◽  
Vol 49 (12) ◽  
pp. 2154-2163 ◽  
Author(s):  
G. Bosco ◽  
A. Carena ◽  
V. Curri ◽  
R. Gaudino ◽  
P. Poggiolini ◽  
...  
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Analytical Approach ◽  
Parametric Gain ◽  
The Impact

scholarly journals METHODS OF MODELING WIRELESS SENSOR NETWORKS TOPOLOGY CONSIDERING INTERNODAL INTERFERENCE

2020 ◽  
Vol 2020 (3) ◽  
pp. 34-44
Author(s):  
Vladimir Vasilevich Fedorenko ◽  
Vladimir Valerevich Samoylenko ◽  
Daria Vladimirovna Alduschenko ◽  
Igor Vladimirovich Emelyanenko
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Network Topology ◽  
Bit Error Rate ◽  
Error Rate ◽  
Frequency Separation ◽  
Wireless Sensor ◽  
Reliability Indicator ◽  
Useful Signal ◽  
The Impact

The article presents the analysis of developing methods of wireless sensor networks (WSNs) topologies based on a graph structure. It indicates the prevalence of tolerance criteria for de-scribing the links between nodes, for example, the limiting distance of radio communication, a sufficient ratio of signal/energy (interference + noise). To consider the impact of inter-node interference on the network topology it is proposed to use the permissible values of bit error probabilities or erasing an information packet in case of distortion of at least one its elements as a criterion for stable communication. The algorithm for calculating an analytical model of internode communication channel is presented to evaluate the effect of intra-network additive and multiplicative noise on the reliability indicator of incoherent message reception in the form of a bit error rate. Expression for the coefficient of structural interaction of the received signal and the interference complex is obtained, which allows considering the dependence of bit error rate on the energy components of individual interference at the receiver input, frequency separation value of a signal and values of each disturbance, their phase shifts and the duration of the information bit. There has been considered practical application of the WSNs topology modeling technique for the internode communication channels with Rice fading of a useful signal and Rayleigh fading of an intra-network interference complex (a case study of using CC2500 modems as part of WSNs nodes). As a result of analysis, there have been determined the relations between nodes, for which the bit error rates do not exceed the allowable value established by requirements for channel capacity and the length of information packets. The presented modeling approach proves the possibility of improving the network topology due to developing the internode links by redistributing the frequency resource between the nodes or adjusting the operation modes of the modems.

scholarly journals Impact of Delay Spread on IEEE 802.15.4a Networks with Energy Detection Receivers

2010 ◽  
Vol 8 (03) ◽  
Author(s):  
P. Medina ◽  
J. R. Gallardo ◽  
J. Sánchez ◽  
F. Ramírez-Mireles
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Wide Band ◽  
Energy Detection ◽  
Ultra Wide Band ◽  
Delay Spread ◽  
Multiuser Interference ◽  
Ieee 802.15.4A ◽  
Industrial Environments ◽  
The Impact

This work analyzes the impact of delay spread on IEEE 802.15.4a networks using energy detection (ED) receivers.Specifically, we review the typical values for delay spread in Ultra Wide Band (UWB) systems reported to date for indoor, outdoor and industrial environments, and study how the delay spread impacts the bit-error rate with and without Multiuser Interference (MUI).

IMPACT OF ASE NOISE OF OPTICAL AMPLIFIER ON PIN-RECEIVER AND CALCULATION OF BIT-ERROR RATE

1996 ◽  
Vol 07 (03) ◽  
pp. 441-446
Author(s):  
QIANGSHENG XIANG ◽  
ANSHI XU ◽  
DEMING WU ◽  
LINZHEN XIE
Keyword(s):  
Optical Communication ◽  
Bit Error Rate ◽  
Error Rate ◽  
Optical Amplifiers ◽  
Optical Amplifier ◽  
Optical Channel ◽  
Simple Analytical Expression ◽  
Spectrum Density ◽  
The Impact

A simple analytical expression is derived to calculate the Bit-Error Rate in lightwave systems with optical amplifiers. According to this expression the Bit-Error Rate can be estimated by the signal power and the ASE spectrum density before the receiver. The theoretical calculation agrees with the experiment very well, so it can provide a method to judge the quality of the optical channel in the optical communication system with optical amplifiers. Futhermore, the impact of the ASE noise on the receiver sensitivity is discussed. It is important to select proper receivers in practical systems.

Filter design methodology controlling the impact on Bit Error Rate performances in WLAN-OFDM transceivers

2002 ◽  
pp. 345-352 ◽  
Author(s):  
Björn Debaillie ◽  
Hideki Minami ◽  
Boris Come ◽  
Wolfgang Eberle ◽  
Stephane Donnay
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Design Methodology ◽  
Filter Design ◽  
The Impact

Performance evaluation of a multihop WDM network with share-per-node L-WIXC architecture

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Munira Haque ◽  
Satya P. Majumder
Keyword(s):  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Design Parameters ◽  
Power Penalty ◽  
Wavelength Division ◽  
System Parameters ◽  
Wdm Network ◽  
The Impact ◽  
Wdm Transmission

AbstractThis paper investigates the impact of coherent and incoherent crosstalks on bit error rate of a multihop wavelength division multiplexing (WDM) transmission system with limited-wavelength-interchanging cross connects (L-WIXCs). The relation between the crosstalk and signal to crosstalk plus noise ratio at the receiver output is analyzed and redefined with an improved mathematical modeling. Quantitative analysis of the bit error rate (BER) in terms of system parameters like number of hops, number of fiber and number of wavelength channels per fiber are evaluated. The power penalty due to accumulated crosstalk at a given BER of 10−9 and the optimum system design parameters are also determined numerically. Results show that there is a significant power penalty of the order of 10–12 dB due to accumulated crosstalk depending on the number of hops. Maximum allowable number of hops at a given BER of 10−9 and number of input fibers are also evaluated.

A Study on Turbo Codes and Rake Received Mixed Algorithm in Multipath Fading Environment

2013 ◽  
Vol 321-324 ◽  
pp. 2877-2882
Author(s):  
Jin Peng Wang ◽  
Qi Ming Zhu ◽  
Fan Cao ◽  
Ping Li ◽  
Nian Yu Zou
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Turbo Codes ◽  
System Performance ◽  
Fading Channel ◽  
Network Performance ◽  
Multipath Fading ◽  
Transmission Power ◽  
Multipath Fading Channel ◽  
The Impact

In this paper, a Turbo codes and Rake received mixed algorithm in multipath fading environment is proposed to solve the problems in signal reception in a fading environment of the mobile communication system. Compared to the traditional multi-path reception methods, the advantage of the algorithm can significantly improve system performance; reduce the system error rate by approximately 2.5dB. Moreover, the performance of the system will be improved a lot if the antenna power is equal. Firstly a mixed algorithm in AWGN channel and multipath fading channel is introduced and derived theoretically and then a computer simulation is carried out and the impact of various parameters on network performance is anglicized. The results show that the algorithm can effectively reduce the effects of multipath fading environment on the transmission power attenuation, lower bit error rate, and improve the effectiveness to resistance to multipath fading significantly.

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