azazel1024
Very Senior Member
As far as I know both Powerline Adapters and MOCA also work on Half duplex. They can also only talk to one client at a time. Thus when you plug in more than two adaters, you must share bandwidth. In fact I believe they work almost exactly like wireless except the medium they use is cable instead of the air (and they use different frequencies).
In my house my MOCA adapters give me about 4ms delay. My 5ghz network only gives me 1 to 2ms delay. Now if more client devices join my 5ghz network the latency will increase, but I guess you could always just add another 5ghz network on a different channel and use that.
Correct. They are all half duplex and all are shared medium. Though MOCA does have a mild advantage that a lot of times, if the coax install is a bit more modern, you might be able to get away with breaking up your coax network for more shared bandwidth. Example, all my coax runs to my storage room, and from there I have a wire heading out to my ONT box in my garage (also the cable from the pole is there as well, but I don't have Comcast).
So if I wanted to not share bandwidth, it would be easy to disconnect a run from the splitter and plug in a MOCA bridge on the end. Downside is I'd lose cable TV to that outlet, but meh. Anyway, it is a way to break it up and not share the coax network. You can't do that with powerline or wireless, though with wireless you can break it up by channels if you have multiple base stations (I do and I do).
802.11ac is generally much better performance over short and possibly medium distances over powerline. The ~200Mbps results of the best currently on the market Homeplug kit in ideal scenarios is less than half the best results I have with just 2:2 867Mbps 802.11ac, let alone if I was doing a 3:3 (or 4:4!) 802.11ac wireless bridge (or had a 3:3 adapter). Even at medium distances through 2 walls, the floor and 30ft I can get around 150-160Mbps, granted it drops off FAST after that in my house (but any further and you get a couple more walls in the way). Heck even just sticking with 2.4GHz I can get 60-70Mbps (40MHz mode) 45ft away, a floor and 4 walls in the way. Powerline can maybe/probably beat that if the noise charateristics of the circuits are decent, but at closer distances, it probably/possibly can't (especially against 5GHz).
Just a thought. Not everything is necessarily the best in all circumstances, but wireless, for now at least, is certainly much faster in short and probably medium distance applications. With no obstructions, wireless is deffinitely far superior at any distance (for example, I can punch 80Mbps easily on 2.4GHz 20MHz 2:2 across 150ft of open air...if I changed that up to 5GHz 80MHz, that would probably be >250Mbps. I highly doubt powerline could hit either of those numbers after 150ft of electrical wiring).