Bit-Error-Rate Performance of Quadrature Modulation Transmission Using Reconfigurable Frequency Selective Surfaces

Bit Error Rate Performance Enhancement of Orthogonal Frequency Division Multiplexing

Orthogonal Frequency Division Multiplexing (OFDM) is a bandwidth efficient signaling scheme for wide band digital communications. A general problem found in high speed communication is Inter-Symbol Interference (ISI). ISI occurs when a transmission interferes with itself and the receiver cannot decode the transmission correctly. Orthogonal frequency division multiplex (OFDM) modulation is being...

Bit Error Probability Computations for M-ary Quadrature Amplitude Modulation

Bit Error Rate Reduction Using Orthogonal Frequency Division Multiplexing with Index Modulation

This paper provides a novel orthogonal frequency division multiplexing (OFDM), called orthogonal frequency division multiplexing with index modulation (OFDM-IM). In this scheme the information is conveyed not only by M-ary signal constellations but also by the indices of the sub carriers. The error performance analysis is provided for this scheme operating under ideal channel conditions. Then t...

Performance Monitoring of Optical Network using Bit Error Rate

With the increase in demand of broadband services, channel complexity has been increased. Therefore it has become necessary to monitor the performance of optical networks. Quality of service monitoring is very important tool in maintaining a strong, reliable and high capacity optical network. When one talks about QoS, BER is the parameter which needs to be monitored. In the proposed work, BER f...

Adaptive minimum symbol-error rate equalization for quadrature-amplitude modulation

We propose the adaptive minimum symbol-error rate algorithm, which is a low-complexity technique for adapting the coefficients of a linear equalizer in systems using pulse-amplitude or quadrature-amplitude modulation. The proposed algorithm very nearly minimizes error probability in white Gaussian noise and can significantly outperform the minimum-mean-squared error equalizer (by as much as 16 ...