Abstract
In this paper, a comparative analysis of the performance of the nonsynchronized initial random access channel in Mobile WiMAX and E-UTRA systems under different conditions (fast fading, multiuser interference) is carried out. The analysis is focused on the correlation properties of the code sequences used in each case. We evaluate their ability to provide low values for false alarm and erroneous detection probabilities (detecting a sequence that has not been transmitted) at the same time as guaranteeing low nondetection probabilities of the effectively transmitted sequences. Results show the promising performance of the E-UTRA scheme, even in high mobility scenarios, where the Doppler effect requires additional considerations to guarantee the correct system operation.
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Gállego, J.R., Hernández, Á., Guío, I. et al. Performance evaluation of nonsynchronized initial random access for mobile broadband systems. Telecommun Syst 43, 279–294 (2010). https://doi.org/10.1007/s11235-009-9202-9
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DOI: https://doi.org/10.1007/s11235-009-9202-9