Design and Evaluation of OFDM Radio Interfaces for High Mobility Communications (2015)
Abstract / truncated to 115 words
In the last two decades, multicarrier modulations have emerged as a low complexity solution to combat the effects of the multipath in wireless communications. Among them, Orthogonal Frequency Division Multiplexing (OFDM) is possibly the most studied modulation scheme, and has also been widely adopted as the foundation of industry standards such as WiMAX or LTE. However, OFDM is sensitive to time-selective channels, which are featured in mobility scenarios, due to the appearance of Inter-Carrier Interference (ICI). Implementation of hardware equipment for the end user is usually implemented in dedicated chips, but in research environments, more flexible solutions are preferred. One popular approach is the so-called Software Defined Radio (SDR), where the signal processing algorithms are ... toggle 10 keywordsICI – OFDM – wimax – LTE – doppler spread – doubly-selective channel – FPGA – DSP – SDR – measurements
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