Hello all, I'd like to present and maybe get a little bit feedback from the community for a rather unique problem we face in a production environment. We are using Atheros AR5312 based EMP-8602 PLUS-S cards in 802.11a mode (5GHz/BBDR) with an external TX amplifier attached to one of the antenna ports. The second antenna port is not amplified. Normally we achieve good results with this setup (up to 2km range outdoors). Unfortunately it doesn't work well if sender and receiver are close together. In this case the amplified signal is apparently to strong for the card to handle. However, switching to the antenna port without the amplifier gives very good results at close range. Now we are looking for a way to automatically select the best antenna port. It seems to me, that this problem is closely related to the rate selection problem faced by the 802.11 stack, so enhancing one of the rate selection algorithms to include the antenna into the search space might be the way to go. Has anybody ever done this? Do you think that this might be the way to go? Are there better heuristics to find the best antenna port? Any other comments? Thanks in advance Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
