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Nowadays customer experience is the most important factor affects the customer loyalty, especially in a mature market. Thus, a Complaint Process Platform (CPP) plays an important role in dealing with customer complaints; most of them are poor mobile coverage, frequent call drops and low speed on 4G. Usually, subscribes call service center directly and report issues to the agent. Many complaints can...
Nowadays, a fault management incorporating with alarm correlation rules play an important role on network management and maintenance. Alarms are unsolicited messages received from network elements or network management systems carrying information about malfunction location, type, severity and other relevant information. Usually, alarm information consists of categorical and numerical attributes and...
This work presents a novel transform kernel scrambling (TKS) scheme for reducing the peak-to-average transmitter power ratio (PAPR) for Orthogonal Frequency Division Multiplexing (OFDM) symbols. This scrambling scheme suppresses the peak envelope power of OFDM signals due to de-correlation among the original QAM constellation in multiple OFDM symbols via transformation. The performance of the reduction...
This investigation presents a modified selected mapping (SLM) scheme for reducing the peak-to-average power ratio (PAPR) of an OFDM transmitted signal using a discrete Fourier transform (DFT) and a discrete cosine transform (DCT) kernel is proposed and investigated. The coefficient array of DFT or DCT is designed to reduce the correlation among original QAM constellations. In this technique, the preprocessing...
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