This is an era of drastic evolution Telecommunications, packet data communication has gained para... more This is an era of drastic evolution Telecommunications, packet data communication has gained paramount attention due to increased internet multimedia usage. One of the challenges faced by telecom companies is to provide robust and powerful network components that are capable to handle the tremendous load of traffic and data on it. Companies evaluate their products performance before releasing them to the market by applying a large amount of generated traffic in order to measure their capability under traffic load; powerful solutions are hence needed for generating traffic and modeling various telecom protocols. The performance is also need to be evaluated for other scenarios that exists in the real network. The scenarios include capacity tests, busy hour call loads, rainy day scenarios, and different types of handoffs. Hence there is a requirement of a simulator tool which evaluates the product’s performance. Packet Load Generator (PLG) is a tool developed to evaluate Network Controller.
Delta modulation is a waveform coding technique which reduces the data rate to a larger extent in... more Delta modulation is a waveform coding technique which reduces the data rate to a larger extent in data communication; the problem encountered in delta modulation is the slope over load error, which is inherent in the system. In order for the signal to have good fidelity, the slope-overload error needs to be as small as possible. Hence there is need for adaptive techniques to be applied to Delta Modulation to reduce the noise. Adaptive delta modulation reduces the slope over load error to a greater extent. ADM attempts to increase the dynamic range and the tracking capabilities of fixed step-size delta modulation. The adaptive algorithms adjust the step size (from a range of step sizes) to the power level of the signal and thus enhance the dynamic range of the coding system appreciably. This paper discusses several Adaptive Delta Modulation techniques for improving the signal-to-noise ratio (SNR) of Adaptive Delta Modulators (ADM) and also their performance comparison is made.
This is an era of drastic evolution Telecommunications, packet data communication has gained para... more This is an era of drastic evolution Telecommunications, packet data communication has gained paramount attention due to increased internet multimedia usage. One of the challenges faced by telecom companies is to provide robust and powerful network components that are capable to handle the tremendous load of traffic and data on it. Companies evaluate their products performance before releasing them to the market by applying a large amount of generated traffic in order to measure their capability under traffic load; powerful solutions are hence needed for generating traffic and modeling various telecom protocols. The performance is also need to be evaluated for other scenarios that exists in the real network. The scenarios include capacity tests, busy hour call loads, rainy day scenarios, and different types of handoffs. Hence there is a requirement of a simulator tool which evaluates the product’s performance. Packet Load Generator (PLG) is a tool developed to evaluate Network Controller.
Delta modulation is a waveform coding technique which reduces the data rate to a larger extent in... more Delta modulation is a waveform coding technique which reduces the data rate to a larger extent in data communication; the problem encountered in delta modulation is the slope over load error, which is inherent in the system. In order for the signal to have good fidelity, the slope-overload error needs to be as small as possible. Hence there is need for adaptive techniques to be applied to Delta Modulation to reduce the noise. Adaptive delta modulation reduces the slope over load error to a greater extent. ADM attempts to increase the dynamic range and the tracking capabilities of fixed step-size delta modulation. The adaptive algorithms adjust the step size (from a range of step sizes) to the power level of the signal and thus enhance the dynamic range of the coding system appreciably. This paper discusses several Adaptive Delta Modulation techniques for improving the signal-to-noise ratio (SNR) of Adaptive Delta Modulators (ADM) and also their performance comparison is made.
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Papers by Niranjan U