Understand receiver dynamics and AGC tradeoffs in WiMAX femto- and picocells

摘要

Part 1 of this article showed how a fully integrated transceiver solution with a built-in, flexible AGC could be used to allow system developers to meet strict performance requirements while maintaining acceptable price points for a picocell or femtocell equipment. Part 2 shows how the media access controller (MAC) algorithms can be used to provide system developers additional margin to these WiMax system designs. The calculations shown in Part 1 of this article assumed a 45-dBm maximum input signal. As with the noise figure (NF) requirement in the standard, it is quite possible that the maximum signal level requirement is inadequate for a performance-differentiated solution.