Because of the very high chip rate of global positioning system (GPS), P-code acquisition at GPS receiver will be challenging. A variety of methods for increasing the probability of detection and reducing the average time of acquisition have been provided, among which the method of Zero Padding (ZP) is the most essential and the most widely used. The method using the Fast Fourier Transform (FFT...

In this paper, the problem of channel equalization in modified discrete Fourier transform (MDFT)-based filter-bank multicarrier system (FBMC) is addressed. Two different system models based on padding zeros or using cyclic prefix in each transmitted block are presented. The proposed systems utilize IFFT/FFT blocks embedded in an MDFT-FBMC system. In the first one, an equalization block similar ...

For a caching system with multiple users, we aim to characterize the memory-rate tradeoff for uncoded cache placement, under nonuniform file popularity. Focusing on modified coded scheme (MCCS) recently proposed by Yu, etal., formulate placement optimization problem MCCS minimize average delivery rate popularity, restricting class of popularity-first placements. We then present two information-...