PDA

View Full Version : NEC iPASOLINK Data



waqasahsan
2011-10-16, 08:37 AM
Hey i read someone here looking for iPasolink info; I am posting here some info i have hope it helps. Let me know if you want more i may be able to dig out some more :)

ankarb
2012-01-23, 05:24 AM
I would like to know more about this new product from NEC. What are the main features that differentiate this product from similar products from other vendors like CERAGON, DRAGONWAVE, ...?

waqasahsan
2012-01-24, 04:21 PM
Hi Ankarab,

Well i have no experience of Ceragon, but according to feedback from one of my Vendors (ZTE), it is the best packet radio money can buy however it is expensive. Nera, you probably know, has been acquired by Ceragon and their packet radio solution is a solid offering from the product portfolio they presented. They claim to have the best header compression in the industry.

Dragonwave is a new product in the MW field and therefore has been lagging in relation to radio related offerings such as XPIC, and multidirection radios. However they are making leaps and bounds in development and probably they will have all this in their solution by 1st or 2nd quarter this year.

NEC in my experience has a very robust solution with very low failure rate and also have a layer 2 swith in their solution, however i feel they are a little bureaucratic whereas Dragonwave actively gets involved with customers and develops what they need.

ankarb
2012-01-27, 09:26 PM
Hey i read someone here looking for iPasolink info; I am posting here some info i have hope it helps. Let me know if you want more i may be able to dig out some more :)

Hi,

is it possible to post more information about iPASOLINK (e.g. user manual, system description) and especially iPASOLINK AX (http://www.nec.com/global/prod/nw/pasolink/products/ipasolinkAX.html)?

Thanks in advance.:)

Cost_Reducer
2012-01-29, 01:28 AM
Hey i read someone here looking for iPasolink info; I am posting here some info i have hope it helps. Let me know if you want more i may be able to dig out some more :)

Hi waqasahsan

thx a lot for those data, however, i would like to know if those data have been published by NEC or are these data from someone else?

Thx

Cost_Reducer

waqasahsan
2012-02-02, 04:42 PM
Hi waqasahsan

thx a lot for those data, however, i would like to know if those data have been published by NEC or are these data from someone else?

Thx

Cost_Reducer

Hi Cost_reducer,

This is NEC data not from 3rd Party.

simog72
2012-03-22, 07:48 PM
I'm trying SIAE microelettronica fulloutdoor device. amazing performance for this (to me unknow ) 50years experience MW manufacturer .
I tried header compression and i can easly reach 1Gbps even at 256QAM , and i 'm now testing 1024QAM modulation (really amazing )
Ceragon also it s a good device , they just showoff too much and preted to be always leader..they dont have 1024QAM fullourdoor with HC , they are not able to transport jumbo frame etc etc

ankarb
2012-03-23, 07:02 PM
I'm tring SIAE microelettronica fulloutdoor device. amazing performance for this (to me unknow ) 50years experience MW manufacturer .
I tried header compression and i can easly reach 1Gbps even at 256QAM , and i 'm now testing 1024QAM modulation (really amazing )
Ceragon also it s a good device , they just showoff too much and preted to be always leader..they dont have 1024QAM fullourdoor with HC , they are not able to transport jumbo frame etc etc

Could you share with us information about SIAE Full Outdoor device? (product features, description, ...)

Thanks in advance.

Cost_Reducer
2012-03-23, 07:50 PM
but Ceragon has FullOutdoor with Header Compression that reaches 1Gbps in 256QAM. 1024QAM is not such a big advantage as your System Gain drops dramatically and you are not able to reach that long links. However, Ceragon just announced to have 1024QAM in LH system...

simog72
2012-03-23, 08:15 PM
i saw Ceragon FullOutdoor , as option but i did my choice..
it s old concept device IMHO, i think they dont believe (at the momet) in FO, probably they will push later for a FO new design.
Sysgain it's very good and 512/1024QAM means 25% for free Best efford traffic capacity (even without header compression option activated)

i saw a live demo of ALFOplus 6 months go, it was unbeliveble and i bought it 3 mouth later because they was ready to provide me very fast (was not just on paper device)..ceragon (my preferred MW supplier) was not ready with that technological big step forward months ago...if u are able to produce/sell that modulator 6/8 months before compared with others big player MW vendors , means a lot to me.

anyway i'm not stacked with ALFOplus , just at the momet SIAE seems to produce a good device for a good price

ankarb
2012-03-24, 01:42 AM
but Ceragon has FullOutdoor with Header Compression that reaches 1Gbps in 256QAM. 1024QAM is not such a big advantage as your System Gain drops dramatically and you are not able to reach that long links. However, Ceragon just announced to have 1024QAM in LH system...

How Ceragon reaches 1Gbps? What is the channel size used for achieving 1Gbps?

Also to mention that Header Compression has a meaning for very small size packets. For average packet lengths (700 bytes) I cannot see a big improvement.

byja
2012-03-25, 09:47 PM
i saw Ceragon FullOutdoor , as option but i did my choice..
it s old concept device IMHO, i think they dont believe (at the momet) in FO, probably they will push later for a FO new design.
Sysgain it's very good and 512/1024QAM means 25% for free Best efford traffic capacity (even without header compression option activated)

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.


How Ceragon reaches 1Gbps? What is the channel size used for achieving 1Gbps?

Also to mention that Header Compression has a meaning for very small size packets. For average packet lengths (700 bytes) I cannot see a big improvement.

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.

simog72
2012-03-25, 11:21 PM
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 (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..

hsyfcs
2012-08-03, 11:22 AM
Thank you very much and mark it

simog72
2012-08-31, 06:47 PM
ipasolink

anybody test or has tech description about
GX , SX and Epasolink
to share

thxx u