Assessment and Real Time Implementation of Wireless Communications Systems and Applications in Transportation Systems (2021)
Abstract / truncated to 115 words
The fourth and fifth generation wireless communication systems (4G and 5G) use a physical layer (PHY) based on multicarrier modulations for data transmission using high bandwidth. This type of modulations has shown to provide high spectral efficiency while allowing low complexity radio channel equalization. These systems use OFDMA as a mechanism for distributing the available radio resources among different users. This allocation is done by assigning a subset of subcarriers to each user in a given instant of time. This provides great flexibility to the system that allows it to adapt to both the quality of service requirements of users and the radio channel state. The media access layer (MAC) of these systems is in ... toggle 13 keywordsOFDMA – wimax – SDR – FPGA – DSP – PHY – MAC – LTE – wifi – CBTC – ns-3 – railway – subway
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