The waves falling in the 40GHz to the 100GHz band in the electromagnetic spectrum are referred to as millimetre waves. Due to the large bandwidth availability, these high data-rate signals find a wide range of applications in modern communication technology such as broadband multimedia wireless systems and 4G cellular communications. Achieving a reduced Bit Error Rate (BER) of around 10 for hig...

We develop a custom Bit Error Rate test bench based on Altera’s Stratix II GX transceiver signal integrity development kit, demonstrate it on point-to-point serial optical link with data rate up to 5 Gbps, and compare it with commercial stand alone tester. The 8B/10B protocol is implemented and its effects studied. A variable optical attenuator is inserted in the fibre loop to induce transmissi...

This paper investigates an adaptive space-time equalisation (STE) assisted multiuser detection scheme for multiple-antenna aided multiuser systems. A minimum bit error rate (MBER) design is compared with the standard minimum mean square error (MMSE) design. It is shown that the MBER design provides significant performance enhancement, in terms of achievable system bit error rate, over the MMSE ...

Recently watermarking scheme based on EMD and SFFF has been proposed. Robustness of watermarking schemes are compared using various performance parameters like bit error rate, normalized correlation and similarity. In this paper, robustness of watermarking scheme based on image decomposition using selffractional Fourier functions and bivariate empirical mode decomposition with cyclic error corr...

We examine a two–rate communication system where the transmission is suspended if the received SNR falls below a given threshold. We assume an FDD system and derive novel closed–form bit error probabilities in the presence of feedback errors in flat Rayleigh fading environment for single antenna transmission, orthogonal space–time block coding and transmit antenna selection. A single–user two–r...

We have suggested in a previous publication a method to estimate the Bit Error Rate (BER) of a digital communications system instead of using the famous Monte Carlo (MC) simulation. This method was based on the estimation of the probability density function (pdf) of soft observed samples. The kernel method was used for the pdf estimation. In this paper, we suggest to use a Gaussian Mixture (GM)...

A key issue in video transcoding for transmission in an error-prone environment is to balance the rate used for the video source with bits allocated for error resilience such that the end-toend distortion is minimized under the given rate constraint and channel condition. The approach presented in this paper differs from previous works by accounting for the inter-frame dependence in both video ...

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...

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...