First of all, the concept of having up to 1024 QAM for tail end hop (and full outdoor is the last mile/last yard) is a bit strange. What capacities are we talking about when using all outdoor solutions? Do we actually need 1 Gbps?
Second, Ceragon does take FO solutions seriously, otherwise there wouldn't be IP10C, and there's also a roadmap for product development to make even more features available in the future. Also, it's not just the IP10C, there's also FibeAir70, a FO solution for 70/80 GHz, providing up to 1 Gbps of aggregate (for TDD version) or full-duplex (for FDD version) capacity.
Third, why bother with 1024 QAM when Multi Layer Header Compression can bring same capacity as higher-order modulation? Yes, I know all the drawbacks of header compression and fact that with small packets it doesn't work as good as with small packets, but for tail end it does provide very good results.
Average packet size isn't (64+1518)/2. If you're carrying voice services and time-critical services, your packet size tends to be much smaller, close to 100 bytes. If you're hauling lot of data, then it's usually over 1000 bytes. There are 3GPP models for traffic distribution, so a good starting point is to compare against those models.
Anyway, header compression in this case isn't just the preamble and IFG removal, as most vendors do. MLHC does L1 - L4 (IP and protocol headers) compression, so you can achieve quite a lot.
So with 64 byte eth frame, you can get almost 1 Gbps even with one 40 MHz channel (and 256 QAM of course). With 56 MHz channel and let's say 128 byte eth frame, you can get up to 624 Mbps. This also depends a lot on what type of traffic you're carrying.
Yes sure !!!
"Ceragon does take FO solutions seriously ...there's also FibeAir70, a FO solution for 70/80 GHz.." so much seriously to offer a thirdpart solution
http://www.siklu.com/products.html
1024QAM from nera e 70/80 from siklu
they are loosing R&D resources .. to develop radio terminal by himself?
we are lucky they are considering themself MW specialist!!!!let s go to see what they are doing in future.
I m just watching because to implement new networks today we need "robust" and real specialist BH MW suppliers, up to now they did well..
Last edited by simog72; 2012-03-26 at 10:15 PM
Thank you very much and mark it
ipasolink
anybody test or has tech description about
GX , SX and Epasolink
to share
thxx u
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