Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Mobile Fading Channels
Intercarrier interference in MIMO OFDM
IEEE Transactions on Signal Processing
ICI mitigation for pilot-aided OFDM mobile systems
IEEE Transactions on Wireless Communications
Autoregressive modeling for fading channel simulation
IEEE Transactions on Wireless Communications
ICI cancellation for OFDM communication systems in time-varying multipath fading channels
IEEE Transactions on Wireless Communications
ML-based Tracking Algorithms for MIMO-OFDM
IEEE Transactions on Wireless Communications
IEEE Journal on Selected Areas in Communications
Upper and lower bound analysis of the OFDM system impaired by CFO over slow fading channels
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
On bounding the number of mobiles sharing a slot in a point-to-multipoint network
Proceedings of the 15th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
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Intercarrier Interference (ICI) is an impairment well known to degrade performance of Orthogonal Frequency Division Multiplexing (OFDM) transmissions. It arises from carrier frequency offsets (CFOs), from the Doppler spread due to channel time-variation and, to a lesser extent, from sampling frequency offsets (SFOs). Literature reports several models of ICI due to each kind of impairment. Some studies describe ICI due to two of the three impairments, but so far no general model exists to describe the joint effect of all three impairments together. Furthermore, most available models involve some level of approximation, and the diversity of approaches makes it cumbersome to compare power levels of the different kinds of ICI. In this work, we present a general and mathematically exact model for the ICI stemming from the joint effect of the three impairments mentioned. The model allows for a vis-a-vis comparison of signal-to-ICI ratios (SIRs) caused by each impairment. Our result was validated by simulations. An analysis of ICI in IEEE-802.16e-type transmissions shows that during steady-state tracking and at speeds below 150 km/h, SIR due to CFO is typically in the range between 25 dB and 35 dB, SIR due to Doppler spread is larger than 25 dB, and ICI due to SFO is negligible.