The asynchronous access etiquette for the 1910-1920 MHz and 2390-2400 MHz spectrum

The FCC has allocated two 10 MHz bands of spectrum (1910-1920 MHz and 2390-2400 MHz) for asynchronous unlicensed operation under a specific set of physical layer and media access layer constraints known as the asynchronous etiquette. Little information is available on the details of the performance of the etiquette. This paper provides a first-cut evaluation of the theoretical limits on the throughput and delay performance of the etiquette. The work studies, via simulation, the effects of propagation delays and hardware latencies. The simulation is calibrated by considering specific subcases for which simple analytic results are easily found. Numerical results illustrate the performance