Cambridge Broadband Networks: VectaStar Gigabit

[ankarb]

Hello,

Does anyone have additional information about the following product:

http://cbnl.com/how-does-vectastar-work

A (http://cbnl.com/how-does-vectastar-work)lso any information for point-to-multipoint equipment from other vendors.:confused:

Thanks in advance.

[cwright]

Hi,

I work for Cambridge Broadband Networks in the marketing department. I’d be more than happy to help provide the VectaStar information you are looking for. Please feel free to drop me an email to discuss this further at cwright@cbnl.com.

Chris Wright
Marketing
Cambridge Broadband Networks

[ankarb]

I don't know much about point-to-multipoint technology, but I think that for the case of LTE increased bandwidth requirements (about 100Mbps per eNodeB) only a point-to-point microwave can satisfy them.

[cwright]

Point-to-multipoint technology can support bandwidths of 100Mbps per eNodeB and is an effective and efficient form of wireless backhaul for technologies like LTE. We’re currently using our point-to-multipoint product to backhaul the Telefonica O2 4G/LTE trial in London which is providing speeds of up to 100Mbs. There is more information on the trial here: http://cbnl.com/news/cbnl-deliver-4g-wireless-multipoint-backhaul-o2

As point-to-multipoint shares resources between several eNodeBs it can also aggregate the bursty and high peak traffic profile of LTE networks, bringing additional efficiency gains and reducing total bandwidth requirements for networks. We have just run a webinar on the Total Cost Ownership of various backhaul solutions which includes an element on how point-to-multipoint is suited for LTE. This may be of interest and can be watched on the following link (the LTE element is covered on slide 17 and 18): http://cbnl.com/resources/crucial-backhaul-economics-0

I’m happy to provide any further information you require.

Chris Wright
Marketing
Cambridge Broadband Networks

[byja]

Chris,

PtMP can support high bandwidths per subscriber units (SUs), but how many SUs per sector can have 100 Mbps each? It's usually a shared capacity between number (and by that I mean a very small number) of SUs, so it's valid only when talking about some form of statistical multiplexing. And depending on technology employed to cover multiple SUs, sometimes statmux is not an option.
With all the limitations of PtMP, it's up to PtP to act as a backhaul for bandwidth-hungry nodeBs. PtMP is a good idea for backhauling low-cap base stations / APs.

[cwright]

We have found the lack of statistical correlation in the backhaul demands of the serving nodeBs in a modern RAN means statistical multiplexing is always possible in mobile broadband backhaul. Our R&D team have measured the average correlation factor across an HSPA+ network to be just 0.06.

Our Chief Technology Officer’s white paper on ‘The Effect of System Architecture on Net Spectral Efficiency for Fixed Services’ contains more detail: http://cbnl.com/resources/effect-system-architecture-net-spectral-efficiency-fixed-services

[mbayat]

Hello ankarb,

Below PPT's are vectastar training I took 2 years ago. Maybe you'll find them helpful.

http://www.4shared.com/office/Aejyl9fc/Radio_Training_revised_v094.html
http://www.4shared.com/office/tKN0XeT7/VectaStar_Introduction_2009011.html