BIT ERROR RATE BER – DEFINITION FORMULA SYSTEM IMPACT

How to reduce the bit error rate of OFDM

How to reduce the bit error rate of OFDM

For this, numerous techniques are proposed to beat the PAPR problem like i) Selective mapping (SLM) ii) Partial transmit sequence (PTS), iii) Clipping, iv) Clipping and filtering. Current technological objectives for OFDM focus primarily on optimizing bit error rate (BER) performance, particularly in high-data-rate applications where transmission reliability directly impacts user experience. However, one amongst the foremost drawbacks of the OFDM system is that the high-peak-to-average power ratio (PAPR) that leads the system to provide in-band distortion and out-of-band radiation and reduces its efficiency. OFDM can be implemented easily, it is spectrally efficient and can provide high data rates with sufficient robustness to channel imperfections. Abstract-In this paper we present an analytical approach to evaluate the bit error rate (BER) of OFDM systems subject to carrier frequency offset (CFO) and channel estimation error in Rayleigh flat fading as well as in time and frequency selective fading channels.

Read More
Formula for Calculating Load on Display Cases

Formula for Calculating Load on Display Cases

The core formula every installer memorizes: Total Load = Screen Weight × Safety Factor + Dynamic Load Allowance. Let's break this down: Standard 5mm pitch transparent LED panels weigh 18kg/㎡ dry. Basic Classifications of LED Display Power Consumption When selecting, designing, or maintaining an LED display, power consumption is not a fixed value. Instead, it fluctuates dynamically based on factors such as brightness level, content displayed, ambient lighting, duration of use, and control. When you choose or install LED display, we need to accurately calculate a range of parameters, such as the number of required power supplies and modules, wire diameter, and power distribution capacity. Voltage is the measure of electrical potential difference between two points in a circuit.

Read More
Formula for Calculating Optical Cable Splice Loss

Formula for Calculating Optical Cable Splice Loss

It's calculated by: Splice Loss (dB) = Number of Splices × Splice Loss Allowance (dB) By adding up these three factors, you can get the total link loss: Total Link Loss = Cable Attenuation + Connector Loss + Splice LossSplice loss is the loss of optical power at a splice. Extrinsic Optical Fiber Losses contains splicing loss, connector loss, and bending loss. Splice loss occurs whenever the mode fields of two joined fibers do not perfectly overlap. This tool uses the Marcuse Gaussian Approximation to calculate losses from intrinsic mismatch and extrinsic alignment errors.

Read More

Get In Touch

Connect With Us

📱

Spain Office (HQ)

+34 936 214 587

🇪🇺

EU Technical Center

+49 89 452 38 217

📍

Headquarters (Spain)

Calle de la Tecnología 47, 08840 Viladecans, Barcelona, Spain