OFDM Simulation with Multipath Effects in Channel Transmission
OFDM simulation program addressing multipath effects, Doppler frequency shift, and delay spread in channel transmission, including numerical modeling approaches
OFDM for Effective Mitigation of Multipath Delay Spread
OFDM effectively combats multipath delay spread through its unique signal structure. The cyclic prefix implementation eliminates both Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI) while maintaining orthogonality between subcarriers. This project provides a comprehensive simulation of a complete OFDM system with detailed signal processing components.
Two Main Types of Fading in Mobile Communication Systems
Mobile communication systems primarily experience two types of fading: large-scale fading and small-scale fading. Large-scale fading represents the reduction in average signal energy or path loss due to movement over large distances. Small-scale fading manifests through two mechanisms: signal delay spread and time-varying channel characteristics. For wireless applications, time-varying channel properties result from changes in transmission paths due to relative movement between transmitters and receivers. The rate of these propagation condition changes affects the fading rate. When numerous reflective paths exist without a line-of-sight component, this small-scale fading is termed Rayleigh fading, where the received signal envelope follows Rayleigh probability distribution statistics. This experiment will focus on analyzing this specific fading phenomenon with signal processing implementations.
Calculation of Average Delay Spread and RMS Delay Spread for Wireless Fading Channels
Compute the average delay spread and root mean square (RMS) delay spread to characterize multipath effects in wireless fading channels, with enhanced code implementation details.
MATLAB Code Implementation for Multipath Simulation
MATLAB Implementation of Multipath Propagation Simulation with Channel Modeling Techniques