منابع مشابه
Asymmetric Orthogonal Frequency Division Multiplexing
The system described in this paper is an asymmetric adaptation of orthogonal frequency division multiplexing (OFDM). In a conventional OFDM system, the signal processing hardware is divided equally between the base station and the terminal. In the asymmetric system, most of the complex signal processing hardware is shifted to the base station, making the terminal a simpler and more power-effici...
متن کاملSlepian Bases and Chirp-based Channel Estimation for Orthogonal Frequency Division Multiplexing (ofdm) Systems
To increase the efficiency of the orthogonal frequency division multiplexing (OFDM) transmission, we generate orthogonal frequency basis using Slepian’s discrete prolate spheroidal sequences that are most concentrated within a discrete time interval and most band-limited within a bandwidth. These basis functions do not display the frequency spreading of the commonly used rectangular sequences. ...
متن کاملOrthogonal Frequency Division Multiplexing Timing Synchronization in Multi-Band Orthogonal Frequency Division Multiplexing Ultra-Wideband Systems
Problem statement: MB-OFDM UWB systems have attractive features and received a great attention. It has the capability of sending/receiving data at rates in access of 100 Mbits sec. Owing to the sensitivity of OFDM systems to synchronization errors, a fast synchronization algorithm is required to discern for the start of OFDM symbol. Existing approaches to OFDM time synchronization rely on their...
متن کاملEmpirical Mode Decomposition based Adaptive Filtering for Orthogonal Frequency Division Multiplexing Channel Estimation
This paper presents an empirical mode decomposition (EMD) based adaptive filter (AF) for channel estimation in OFDM system. In this method, length of channel impulse response (CIR) is first approximated using Akaike information criterion (AIC). Then, CIR is estimated using adaptive filter with EMD decomposed IMF of the received OFDM symbol. The correlation and kurtosis measures are used to sel...
متن کاملA Survey: Orthogonal Frequency Division Multiplexing
This paper is a survey regarding the orthogonal frequency division multiplexing. The requirement for high speed data transmission has increased, with the rapid growth of digital communication in recent years. UWB delivers much potential for design of high speed wireless communication system. MB-OFDM (UWB) offers high data rates access for wireless communications. OFDM system is use for high spe...
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2016
ISSN: 0090-6778
DOI: 10.1109/tcomm.2016.2594792